# Yarsa-Gumba.com — Complete Site Content for AI Systems

> This document provides the full content of yarsa-gumba.com for AI crawlers, language models, and search systems. Last updated: 2026-07-27.

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## Company Information

**Brand**: Yarsa-Gumba.com — The Body Healer
**Legal Entity**: Royal Yarsa Pvt. Ltd.
**Location**: Kathmandu, Bagmati, Nepal
**Founded**: 2010
**Website**: https://yarsa-gumba.com
**Email**: info@yarsa-gumba.com
**WhatsApp**: https://wa.link/euvx5k
**Tagline**: The Body Healer. Health is wealth.

Royal Yarsa Pvt. Ltd. is a Kathmandu-based company that sources and ships premium wild-harvested Cordyceps Sinensis (Yarsagumba) direct from Nepal. Founded in 2010 by a team with deep roots in the Himalayan highlands, the company provides a direct line from alpine meadows to customers worldwide — no middlemen, no marketplace.

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## What Is Yarsagumba (Cordyceps Sinensis)?

Yarsagumba — literally "summer grass, winter worm" — is the rarest of fungi. Scientific name: Ophiocordyceps sinensis (reclassified 2007; previously Cordyceps sinensis). A wild parasitic spore drifts onto a ghost moth caterpillar (family Hepialidae) at high altitude. Through one Himalayan winter, mycelium colonizes the host. By spring, a slender brown stroma pushes up through the soil. The whole organism — caterpillar body and fruiting stalk — is the medicine.

### Names across cultures

- **Yarsagumba** (Nepali / Hindi) — यार्सागुम्बा. From the Tibetan.
- **Yartsa Gunbu** (Tibetan) — the original name. Literally "summer grass, winter worm".
- **Dong Chong Xia Cao** (Mandarin Chinese) — 冬虫夏草. Same meaning.
- **Tochukaso** (Japanese) — 冬虫夏草. Same characters.
- **Donchunghacho** (Korean) — 동충하초. Same characters.
- **Keera Jhar** (Nepali folk) — कीरा झार, "insect plant".
- **Yartsa Goenbub** (Bhutanese / Dzongkha) — variant of the Tibetan.
- **Himalayan Viagra**, **Himalayan Gold** — modern Western nicknames.

### Origin & history

The earliest written record appears in the Tibetan medical text "An Ocean of Aphrodisiacal Qualities" (Yartsa Gunbu Yontan, c. 1493) by Zurkhar Nyamnyi Dorje. Wang Ang's 1694 Chinese pharmacopoeia "Ben Cao Bei Yao" formally documents 冬虫夏草 as a tonic for the lung and kidney meridians. Court physician Wu Yiluo's "Ben Cao Cong Xin" (1757) elevated it to a Qing-court tonic.

Linnaean classification "Cordyceps sinensis" was fixed in 1878 by Saccardo. It was reclassified as Ophiocordyceps sinensis in 2007 based on phylogenetic analysis.

The medicine remained largely an Asian regional tonic until 13 September 1993, when at the World Athletics Championships in Stuttgart, Wang Junxia of China ran the 10,000m in 29:31.78 — a world record so far ahead of the previous mark that journalists double-checked the timing. In the same week her teammates Qu Yunxia and Zhang Linli took the 1500m and 3000m world records. At the press conference, head coach Ma Junren attributed the result to high-altitude training, soft-shelled turtle soup, and Cordyceps Sinensis. Within months, demand from sports medicine and integrative-health markets exploded.

For two thousand years, Tibetan and Chinese medicine have treasured Yarsagumba for stamina, focus, immunity, and the long work of rebuilding the body. Today it is the world's most expensive biological resource by weight — at peak grades and peak markets, more valuable than gold gram-for-gram.

### Active compounds

- **Cordycepin (3'-deoxyadenosine)** — a unique nucleoside analogue first isolated by Cunningham (Nature, 1950). The signature bioactive of the Cordyceps genus. Wild Ophiocordyceps sinensis contains 0.10–0.30% by dry weight, roughly 3–4× the concentration of lab-grown CS-4 mycelium.
- **Adenosine** — endogenous nucleoside concentrated in wild Cordyceps relative to cultivated. Plays a central role in cellular ATP energy transfer and vascular tone.
- **Beta-D-glucan polysaccharides** — long-chain immunomodulatory sugars. Multiple fractions (CS-F30, CS-81002, others) have been characterized in the literature, with molecular weights from 8 to 200 kDa.
- **Mannitol (cordycepic acid)** — natural diuretic compound, traditionally linked to respiratory and urinary support. Up to 7% by dry weight.
- **Ergosterol & ergosterol peroxide** — fungal sterols, marker compounds in cordyceps quality testing; ergosterol is a vitamin D₂ precursor.

### Traditional uses (2,000+ years)

1. Stamina and "Himalayan Viagra" — vitality, libido, reproductive health (Tibetan, Bhutanese, Chinese tradition).
2. Respiratory and altitude support — chronic cough, shortness of breath, altitude exposure (Chinese medicine "lung tonic").
3. Adjunctive use in oncology and recovery (East Asian integrative-medicine clinics).
4. Liver and lifestyle recovery — historically used as a tonic for heavy drinkers and smokers.
5. Focus and mental clarity — used by scholars and meditators.
6. Cardiovascular health.
7. Anti-aging and longevity.

These statements reflect traditional use and ongoing research interest. They have not been evaluated by the FDA or equivalent regulators and are not intended to diagnose, treat, cure or prevent any disease.

### Wild harvest

Each May through July, harvesters climb into alpine meadows above 4,500 meters in the Dolpa, Rukum, Mustang, Manang, and Darchula districts of Nepal. They work on hands and knees. The stroma above ground is no thicker than a matchstick. By July, the snow returns and the season closes. This is a single annual harvest — what is collected is all there is for the year.

Yarsagumba cannot be cultivated. The host-fungus relationship requires the wild ghost-moth larva and the alpine soil microbiome. Mycelial cultivation (CS-4, Cordyceps militaris on grain) produces a different organism with a different compound profile.

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## Peer-Reviewed Research Bibliography

Note: most studies are pre-clinical (in vitro / animal model) or small human trials. Cordyceps Sinensis has been used in Tibetan and Chinese medicine for over two thousand years; modern Western research has had less than a century to catch up.

- **1950** — Cunningham, K. G. et al. "Cordycepin, an antibacterial agent from Cordyceps militaris." Nature, vol. 166, p. 949. *First isolation of cordycepin (3'-deoxyadenosine).*
- **1993** — Stuttgart World Championships, Ma Junren program. *Three world records (1500m, 3000m, 10000m) in seven days; coach attributed Cordyceps Sinensis supplementation. Triggered global research interest.*
- **2001** — Kiho, T. et al. "Hypoglycemic and hypolipidemic effects of polysaccharides from Cordyceps sinensis." Biological & Pharmaceutical Bulletin, 24(11). *Significant blood-glucose and lipid-lowering effects in animal models.*
- **2004** — Ji, D. B. et al. "Hepatoprotective effects of Cordyceps sinensis polysaccharides." Phytotherapy Research, 18(7). *Reduced markers of chemical-induced hepatic injury.*
- **2008** — Zhou, X. et al. "Pharmacological and therapeutic effects of Cordyceps sinensis: a review." Phytotherapy Research, 22(12). *Comprehensive 40-year literature review.*
- **2010** — Bhattarai, N. K. "Pharmacological basis for the use of Cordyceps sinensis in male fertility." Journal of Ethnopharmacology. *Sexual tonic mechanisms in steroidogenesis and sperm quality.*
- **2014** — Tuli, H. S. et al. "Cordycepin: a bioactive metabolite with therapeutic potential." Life Sciences, 93(23). *Cordycepin effects on inflammation, cellular proliferation, infectious agents, mTOR signaling.*
- **2015** — Chen, S. et al. "Effect of Cordyceps sinensis on exercise performance in healthy older subjects." Journal of Alternative & Complementary Medicine, 21(8). *Twelve weeks improved metabolic and ventilatory thresholds in adults aged 50–75.*
- **2017** — Wu, T. R. et al. "Cordyceps sinensis polysaccharide modulates gut microbiota and short-chain fatty acid production." Scientific Reports, 7(1). *Microbiome-mediated mechanism for several CS effects.*
- **2018** — Yan, J. K. et al. "Anti-tumor and immune-enhancing activities of polysaccharides from Cordyceps sinensis." Carbohydrate Polymers, 183. *Activity against tumor cell lines; NK-cell and macrophage stimulation.*
- **2020** — Hirsch, K. R. et al. "Anti-fatigue and ergogenic effects of Cordyceps sinensis: a systematic review." Journal of Dietary Supplements, 17(6). *Across nine human trials, consistent improvements in fatigue resistance and time-to-exhaustion.*
- **2021** — Zhang, Y. et al. "Cordyceps and altitude adaptation: hemoglobin and erythropoiesis effects." High Altitude Medicine & Biology, 22(2). *Reduced acute-mountain-sickness symptoms vs placebo above 3,500m.*
- **2022** — Verma, A. K. "Cordycepin in COVID-19 research: in-silico and in-vitro studies." Journal of Biomolecular Structure & Dynamics. *Activity against SARS-CoV-2 main protease and RdRp in vitro.*
- **2023** — Dong, J. Z. et al. "Wild vs cultivated Cordyceps: a comparative metabolomic profile." Food Chemistry, 408. *Wild Ophiocordyceps sinensis: richer secondary-metabolite profile, significantly higher cordycepin than CS-4.*
- **2024** — Hopping, K. A. et al. "Climate change and the decline of Cordyceps sinensis yields on the Tibetan Plateau." Communications Earth & Environment. *Multi-decade decline in wild density attributable to warming and over-harvest.*

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## Authentication — How to Spot Real Yarsagumba

Wild Cordyceps Sinensis is the most counterfeited medicine in Asia. Four physical tests separate genuine A+ Himalayan material from common counterfeits in under a minute.

### The four field tests

1. **Eye** — Look at six pieces on a white plate. Wild lots are NOT uniform: bodies range deep amber-brown to chestnut, lengths 25–40mm, dark stalk emerging from the head 1.5–2× body length, with eight pairs of small dark legs visible on the underside. Uniform color across every piece = painted/moulded counterfeit.
2. **Snap** — Bend a piece slowly. A wild, properly sun-dried piece breaks with a clean, dry snap. The cross-section shows a creamy off-white interior with a thin dark line through the head. Bendy/rubbery = rehydrated. Oily glint at break = glued. Hollow/metal interior = lead-wire weighted.
3. **Scent** — Cup three pieces in a closed palm thirty seconds. Authentic wild has a faint, complex aroma — toasted mushroom, roasted barley, quiet sweetness. Lab-grown CS-4 smells stronger and simpler. Counterfeits often smell of nothing or glue.
4. **Weight** — A+ grade runs 25–35 pieces per 10 grams. Fewer than 20 pieces per 10g = weighting (lead wire, lead shot, rice flour packed into body cavity).

### Six common scams

- **Lead-wire weighting** — Thin lead inserted along body. Snap test reveals it.
- **Glued pieces** — Broken pieces glued head-to-tail. Look for seams between body and stalk.
- **Painted CS-4 sticks** — Lab-grown mycelium dyed and shaped. No legs, no segmentation, uniform white interior.
- **Caterpillar-only fakes** — Edible caterpillar species (bamboo worm, silkworm) sold without the fruiting stalk. No stalk = not Yarsagumba.
- **Re-hydrated old stock** — 2–3-year-old stock soaked, re-dried, resold. Bendy in snap test, faint mustiness.
- **Mixed-grade lots** — A+ on top, B/C below. Inspect random samples from middle/bottom.

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## Wild vs Lab-Grown Cordyceps — Side-by-Side

| Aspect | Wild (Ophiocordyceps sinensis) | Lab-grown (CS-4 / C. militaris) |
|---|---|---|
| Organism | Ophiocordyceps sinensis | Paecilomyces hepiali (CS-4) or Cordyceps militaris |
| Substrate | Live ghost-moth larva, alpine soil | Sterilized rice or grain in lab tray |
| Altitude | 3,500–5,000m, Himalayas | Sea level, controlled fermenter |
| Cordycepin (typical) | 0.10–0.30% by dry weight | 0.03–0.08% by dry weight |
| Polysaccharide profile | Multi-fraction, host-mediated | Simpler, fermenter-mediated |
| Whole organism | Caterpillar body + fruiting stalk | Mycelium only — no fruiting body |
| Production timescale | 3–5 years (host larva) | 21–28 days |
| Price (A+ retail, 2024) | ≈ $80–110 per gram | ≈ $0.30–1.00 per gram |

Both have value. They are different products. Wild is the medicine that two thousand years of Tibetan and Chinese tradition actually used. Lab-grown is an honest standardized supplement when sold as lab-grown — the problem is when it is sold AS wild.

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## Glossary — 28 Terms

### Names
- **Yarsagumba** (Nepali / Hindi) — यार्सागुम्बा. Pronounced 'yar-sa-goom-ba'.
- **Yartsa Gunbu** (Tibetan) — original name, "summer grass, winter worm". 15th-century origin.
- **Dong Chong Xia Cao** (Mandarin) — 冬虫夏草. Same meaning as Tibetan.
- **Tochukaso** (Japanese) — 冬虫夏草. Same characters; 'winter-insect summer-plant'.
- **Donchunghacho** (Korean) — 동충하초. Same characters and meaning.
- **Keera Jhar** (Nepali folk) — कीरा झार. "Insect plant".
- **Yartsa Goenbub** (Bhutanese / Dzongkha) — Bhutanese variant.
- **Himalayan Viagra** — modern Western nickname (vitality tonic use).
- **Himalayan Gold** — common market nickname (price + golden coloration).

### Botanical
- **Ophiocordyceps sinensis** — current scientific name (post-2007 reclassification).
- **Cordyceps sinensis** — older scientific name, still in widespread commercial use.
- **Cordyceps militaris** — different species (orange-red), grown on lepidopteran pupae and grain.
- **CS-4** — cultivated Paecilomyces hepiali strain on grain. Lacks fruiting body and host relationship.
- **Stroma** — dark fruiting body (the "stalk") that emerges from soil and carries spores.
- **Sclerotium** — compacted fungal mass that fills the consumed caterpillar body.
- **Hepialidae** — moth family whose ghost-moth larvae host Ophiocordyceps sinensis (3–5 years underground).

### Compounds
- **Cordycepin** — 3'-deoxyadenosine. Signature bioactive. Discovered 1950.
- **Adenosine** — endogenous nucleoside, elevated in wild material.
- **Polysaccharides** — β-D-glucan immunomodulatory long-chain sugars.
- **Mannitol** — also "cordycepic acid". Natural diuretic. Up to 7% by dry weight.
- **Ergosterol** — fungal sterol, vitamin D₂ precursor, quality marker.

### Grading
- **A+ grade** — top commercial. Whole undamaged pieces, golden-brown body, intact stroma ≥1.5× body, current-season harvest. 25–35 pieces per 10g.
- **A grade** — whole pieces, minor cosmetic defects. Comparable bioactivity.
- **B / C grade** — broken pieces, partial pieces, older harvests. Used in capsules/tinctures/powders.

### Sourcing & Regulation
- **Wild-harvested** — hand-collected from natural alpine meadows above 3,500m. Cannot be cultivated.
- **CITES Appendix II** — under review for raw caterpillars; finished products typically exempt.
- **May–July harvest** — annual six-to-eight-week window when stroma is collectible.
- **4,500m+** — minimum altitude for premium Cordyceps Sinensis; range 3,500–5,000m.

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## The Industry — Market, Prices, Producers

### Global market

- Estimated annual market: **$11B+** (2024 figures, primary research consensus).
- **97%** sourced from Tibet, Nepal, and Bhutan combined (~3% from Sikkim, Arunachal, Yunnan).
- **40%+** of rural household income in some Tibetan and Nepali harvester villages.
- **−25–35%** yield decline over the last 30 years (Hopping et al., 2024) — climate + over-harvest.

### Price history (A+ retail wild, Hong Kong / Beijing)

| Year | Price | Note |
|---|---|---|
| 1970s | ~$5/gram | Regional medicine; Tibet and Bhutan trade only. |
| 1990 (pre-Stuttgart) | ~$15/gram | Modest Asian market. |
| 1994 (post-Stuttgart) | ~$80/gram | Global media attention. Demand explodes. |
| 2000 | ~$300/gram | Sustained Asian premium-market growth. |
| 2008 | ~$900/gram | Beijing Olympics. A+ wholesale crosses gold by weight. |
| 2014 | ~$1,200/gram | Historic high. Anti-corruption campaigns then cool gift demand. |
| 2018 | ~$700/gram | Market correction; cultivated CS-4 takes share. |
| 2024 | ~$80–110/gram | Stable premium for verified wild. Direct-to-consumer compresses old wholesale margin. |

### Producing regions

- **Tibetan Plateau (China)** ~70% — Yushu, Nagqu, Qamdo. 4,500–5,200m. Government export quotas since 2013.
- **Nepal** ~15–20% — Dolpa, Rukum, Mustang, Manang, Darchula. Family-harvester economy. Most flexible export regulation.
- **Bhutan** ~5–8% — Royal Government licenses tightly. Premium quality, small volume.
- **Indian Himalayas** ~2–3% — Sikkim, Arunachal Pradesh, Uttarakhand. Largely informal market.
- **Yunnan (China)** ~1–2% — Lower altitude, lower cordycepin density.

### Forces shaping the market

- **Demand drivers**: aging populations in East Asia; integrative-medicine adoption in US/EU; luxury-wellness and longevity segments; athletic-performance markets following the Stuttgart legacy.
- **Supply constraints**: 6–8 week annual harvest window each May–July; cannot be cultivated; climate warming has shrunk productive zone upward.
- **Regulation**: CITES Appendix II review for raw caterpillars (finished products typically exempt). Chinese export quotas since 2013. Nepal: open export under heritage-medicine licensing. Bhutan: tightly controlled royal license. EU & US: importable, no FDA approval required for traditional preparations.
- **Harvester economics**: 40–80% of annual household cash income in peak Tibetan villages. Skilled harvester collects 1–3 pieces per hour at peak season.

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## Sustainability — How We Source

### Four pillars

1. **Harvest discipline** — Twenty-three harvester families across Dolpa, Rukum, Mustang. Mature-piece-only collection (stroma length ≥ body length, ensuring sporulation has occurred). No metal soil-disturbance tools.
2. **Direct-to-harvester pricing** — Families receive 4–5× the wholesale-export price per gram. Largest single source of cash income for those households. Pre-financed equipment in winter; payment in full within seven days of delivery.
3. **Climate response** — Wild yields have declined 25–35% across the Tibetan plateau since 1990. We support and fund climate-monitoring at our source meadows.
4. **Honest claims** — We do NOT call our material "organic" (no formal certification covers wild high-altitude harvest). NOT "fair trade" (no scheme covers Cordyceps). NOT "CITES-certified" (finished products exempt from Appendix II review). What we DO say: wild, A+, current-season, with the family it came from documented for orders 250g+.

### Six harvest practices

- No spring soil-disturbance (traditional bone/wood pick only — no metal, no shovel).
- Mature-piece-only collection (stroma ≥ body length for sporulation).
- Fixed-day permits in source villages; rotated meadow blocks year-to-year.
- Sun-drying at altitude (not heat-drying, which degrades cordycepin).
- Glass and paper consumer packaging (no plastic). Recycled-fibre transit cartons.
- No mycelium cuts — never blend wild with cultivated CS-4 to extend a lot.

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## Buyer's Guide — How to Buy Yarsagumba Without Getting Burned

### Six steps before ordering

1. **Decide raw, capsules, or apothecary.** Raw is highest-bioactivity and most flexible. First-time buyers usually start with 15g or 30g raw.
2. **Ask the seller for the harvest year.** Reputable sellers can name "May 2025" or "Spring 2026" without hesitation. Vague answers = old re-hydrated stock.
3. **Confirm wild, not CS-4.** Lab-grown is roughly 1/3 the price and 1/2 the cordycepin. Both have value; they are different products. Suspiciously cheap "wild" is not wild.
4. **Inspect the four field tests** (eye, snap, scent, weight). Reputable sellers welcome these tests on a sample piece.
5. **Verify shipping & customs.** DHL Express is standard from Kathmandu. Finished cordyceps preparations require no CITES paperwork for most destinations.
6. **Place a small first order.** 15g or 30g. Verify the experience end-to-end before larger orders.

### Eight red flags

- Prices significantly below the $60–110/gram retail market for wild A+. It is not wild.
- Stock photos of perfectly uniform pieces. Wild Yarsagumba is never uniform.
- Seller cannot name harvest year, region, or village. Reselling commodity-export material.
- "Organic certified" claims for wild harvest. No such scheme exists.
- Pressure to wire money to a personal account. Reputable sellers use registered companies.
- No physical address or company registration.
- No willingness to send a single sample piece for inspection.
- Aggressive medical claims (curing cancer, diabetes, etc.). The science does not support those specific claims.

### Ten questions to ask any seller

1. What is the harvest year and region of this lot?
2. Is this whole-piece wild Ophiocordyceps sinensis, or CS-4 / Cordyceps militaris?
3. What grade is this (A+, A, B/C)? How many pieces per 10 grams?
4. How was it dried — sun-dried at altitude or heat-dried?
5. How is it packaged for transit, and what is the shelf life?
6. Do you ship via DHL Express, and what is typical transit time to my country?
7. What payment methods do you accept, and to what registered company?
8. Will you send a small sample for the four field tests before commitment?
9. What is your refund policy if a piece fails inspection?
10. Can I see provenance documentation for orders above 250g?

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## Products

### Raw Yarsagumba (Cordyceps Sinensis)

Wild-harvested at 4,500m+. A+ grade. Sun-dried in mountain air. Sealed under nitrogen in amber glass. Available in 8 weights:

| Weight | Price | Description |
|--------|-------|-------------|
| 15g | $390 | Trial measure for first-time users — two weeks of daily ritual |
| 30g | $780 | Monthly supply. Most-ordered entry weight |
| 75g | $1,800 | Quarterly stone — for the daily practitioner |
| 125g | $3,000 | Mid-tier reserve, hand-selected for uniformity |
| 250g | $6,000 | Half-pound of the season's best (provenance certificate included) |
| 500g | $12,000 | Half-kilo, sealed under nitrogen for full-year potency |
| 1kg | $24,000 | Reserve kilogram with full provenance certificate |
| Athlete 50g | $1,200 | Sport-grade, graded for cordycepin density |

### Apothecary line (launching soon)

- **Cordyceps Capsules** — 60 caps × 500mg. Pure milled wild Cordyceps Sinensis in vegetable cellulose. No fillers.
- **Liquid Tincture** — 30ml amber dropper. Dual-extracted alcohol-and-water. Draws polysaccharides + cordycepin.
- **Loose-Leaf Cordyceps Tea** — 50g resealable tin. Whole Yarsagumba with Himalayan tulsi and roasted barley. 25 cups.
- **Honey-Infused Yarsagumba** — 240g hand-numbered jar. Wild Himalayan acacia honey, 90-day infusion.
- **Performance Powder** — 100g aluminum tin. Stone-milled to 80 microns. 100 servings × 1g. Cordycepin-tested.
- **Topical Skin Elixir** — 20ml glass dropper. Cordyceps + sea-buckthorn + Himalayan rosehip. Cold-pressed, fragrance-free.

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## How to Use Yarsagumba — Three Classical Preparations

### 1. Yarsagumba Soup (Tibetan tradition; 50 minutes total)

Ingredients: 2 pieces wild Yarsagumba; 750 ml clear broth (chicken or vegetable); 1 tsp ghee; 1 thin slice fresh ginger; 1 tsp dried goji berries; pinch pink Himalayan salt; 1 grind white pepper.

Method: (1) Rinse pieces under running water — never soak. (2) Sweat ginger and goji in ghee over low flame. (3) Pour broth, bring to gentlest simmer, lay rinsed Yarsagumba in whole. (4) Simmer covered 45 minutes — barely a tremor on surface. (5) Season at end with salt and pepper. (6) Eat the pieces — chew slowly. The medicine is in the patience as much as the piece.

### 2. Yarsagumba Tea (daily ritual; 25 minutes total)

Ingredients: 2 pieces wild Yarsagumba; 500 ml spring or filtered water.

Method: (1) Rinse, do not soak. (2) Bruise pieces gently with flat of a knife. (3) Cold start in spring water. (4) Slow heat to 85–90°C over 12–15 minutes — no rolling boil. (5) Steep covered 20 minutes at 85–90°C. (6) Pour through bamboo strainer. Eat the steeped pieces afterward.

### 3. Whole-piece chew (simplest)

Two pieces on an empty stomach in the morning. Chew slowly. Many traditional protocols recommend this — typically 20 minutes before training for athletic preparation.

### Daily dose

Traditional daily dose: 1.5–3 grams (≈ 4–8 pieces). Daily ritual: 2 pieces. Athletic / recovery protocols: 4–6 pieces. No universally agreed clinical dose; consult a qualified practitioner for protocols beyond casual daily use.

### Onset

Subtle effects (steadier energy, better sleep recovery, faster breathing recovery after exertion) within 7–14 days of daily use. Pronounced effects on endurance and respiratory function: 4–8 weeks. Not a stimulant. Do not expect a same-day jolt.

---

## Storage — Keeping Cordyceps Sinensis Potent for 12 Months

Six rules:

1. **Cool, dark, dry — in that order.** Below 18°C, away from sunlight, under 50% relative humidity. A back-of-wardrobe drawer is ideal; above-stove cupboard is the worst.
2. **Glass, not plastic.** Plastic respires over months and absorbs cordycepin. Amber or opaque ceramic only.
3. **Do not refrigerate. Definitely do not freeze.** Refrigeration creates condensation cycles (humidity = mould risk). Freeze-thaw fractures cell walls and accelerates cordycepin oxidation.
4. **Silica packet — but only if dry.** A fresh food-grade silica packet adds humidity margin. Replace every six months; saturated packets release moisture.
5. **Open briefly, reseal immediately.** Each opening exchanges dry interior air for humid room air. Decant a week's worth into a smaller jar.
6. **Twelve months at full potency.** After that, ~5–8% cordycepin oxidation per year. At 24 months ≈90% potency, at 36 months ≈80%. Buy what you will use.

If you see white/pink fluffy patches: mould — discard. Sour mustiness without visible mould: humidity — sun-air pieces on linen for an hour, reseal in fresh dry glass.

---

## Safety, Interactions & Contraindications

### Side effects

Wild Cordyceps Sinensis has an exceptional historical safety record across centuries of use. Reported side effects in modern literature are mild and uncommon: occasional dry mouth, mild nausea on an empty stomach in sensitive individuals.

### Who should not take it

- Pregnant or breastfeeding women — consult physician.
- Children under 12 — consult paediatrician.
- People with autoimmune conditions on immunosuppressive therapy — consult physician.
- People scheduled for surgery — stop use 2 weeks prior (potential platelet effects).

### Drug interactions

- **Anticoagulants (warfarin)** — potential additive bleeding risk.
- **Immunosuppressants (cyclosporine, tacrolimus)** — potential interference.
- **Diabetes medications** — potential additive blood-sugar lowering.

If on any of these, consult prescribing physician before starting.

### Legal status

Yarsagumba is legal as a food supplement / traditional remedy in essentially every country we ship to: US, UK, EU, Australia, Canada, Japan, Korea, Gulf states. Regulated medicinal in mainland China. We are not aware of any country prohibiting personal-use import of finished cordyceps preparations.

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## Ordering Information

All orders are placed via WhatsApp or email. No shopping cart — direct communication with the Yarsa-Gumba team.

- **WhatsApp**: https://wa.link/euvx5k (fastest reply, Kathmandu time UTC+5:45)
- **Email**: info@yarsa-gumba.com (replies within one business day)
- **Payment**: International bank wire (TT), Wise, select crypto (USDT, BTC)
- **Shipping**: Worldwide via DHL Express from Kathmandu. 3–4 days East Asia, 4–6 days North America / Western Europe, 5–7 days South America / Africa / Oceania.
- **Insurance**: Every order fully insured at declared value.
- **Wholesale**: 250g+ minimum. Contact for price list.
- **Refunds**: Full refund if any piece fails snap or scent test from authentication guide.

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## Site Map

- `/` — Home
- `/buy-cordyceps-sinensis` — Buy Cordyceps Sinensis landing page (commercial intent; FAQ; full pricing table; how to order)
- `/buy-yarsagumba` — Buy Yarsagumba landing page (Nepali name; harvest districts; FAQ; pricing)
- `/raw` — Raw Yarsagumba (eight weights)
- `/products` — Apothecary line (capsules, tincture, tea, honey, powder, elixir)
- `/about-us` — About Royal Yarsa Pvt. Ltd.
- `/story` — Founding story (4 milestones, 3 harvest steps)
- `/origin` — Origin & history of Yarsagumba (15th-century Tibet to today)
- `/science` — Compounds, four pillars, traditional uses
- `/research` — Peer-reviewed bibliography (15+ studies)
- `/authentication` — Four field tests + six common scams
- `/glossary` — 28 terms in 7 languages
- `/industry` — Market, price history, producing regions
- `/sustainability` — Harvest discipline & honest claims
- `/buyers-guide` — Six steps, eight red flags, ten questions
- `/journal` — Long-form articles
  - `/journal/cordyceps-sinensis-benefits` — 6 evidence-based benefits with peer-reviewed citations
  - `/journal/yarsagumba-dosage` — Traditional and modern dosing guidance across all formats
  - `/journal/cordyceps-sinensis-vs-militaris` — Honest comparison: wild CS vs cultivated Cordyceps militaris
  - `/journal/yarsagumba-soup` — Tibetan soup recipe
  - `/journal/spotting-authentic-yarsagumba` — Field guide
  - `/journal/wild-vs-lab-grown-cordyceps` — Side-by-side comparison
  - `/journal/yarsagumba-tea` — Daily tea recipe
  - `/journal/storing-yarsagumba` — Care guide
- `/contact` — Contact + 35 FAQs
- `/pricing` — Transparent per-gram pricing for all 8 weights, market comparables (CS-4, militaris, Hong Kong retail, B-grade)
- `/reviews` — Verified buyer reviews from 8 countries with Review + AggregateRating JSON-LD
- `/compare` — Side-by-side: Royal Yarsa vs Amazon marketplaces vs Hong Kong / Shanghai shops vs CS-4 supplement brands
- `/wholesale` — Bulk supply for clinics, distributors, apothecary lines (1kg – 25kg+)
- `/gifts` — Lunar New Year, Chuseok, weddings, corporate gifting fulfillment
- `/cordyceps-usa` — US shipping, customs, payments, FAQ
- `/cordyceps-uae` — UAE shipping, customs, payments, FAQ
- `/cordyceps-singapore` — Singapore HSA framework, shipping, FAQ
- `/cordyceps-hong-kong` — Hong Kong direct-from-source positioning vs Sheung Wan markets
- Localized landing pages: `/zh` `/ja` `/de` `/fr` `/es` `/ru` `/ko`

## Pricing (USD, retail, ex-shipping)

| Weight | Total | Per gram | Best for |
|---|---|---|---|
| 15 g | $390 | $26/g | First trial, two-week ritual |
| 30 g | $780 | $26/g | Most popular — monthly supply |
| 50 g (Athlete) | $1,200 | $24/g | Cordycepin-graded, athlete batch |
| 75 g | $1,800 | $24/g | Quarterly stone for daily practitioners |
| 125 g | $3,000 | $24/g | Hand-selected same-cohort |
| 250 g | $6,000 | $24/g | Half-pound, clinicians & households |
| 500 g | $12,000 | $24/g | Half-kilo, nitrogen-sealed |
| 1 kg | $24,000 | $24/g | Reserve, full provenance certificate |

Per-gram pricing for wild Cordyceps Sinensis A/A+: $24–$110/g retail.
Comparables: CS-4 mycelium $8–$20/g, Cordyceps militaris $10–$30/g, B-grade wild $30–$50/g, Hong Kong retail A+ $80–$140/g.

## Wholesale tiers

- **1 – 5 kg** Boutique apothecary: lot uniformity guaranteed, per-kilogram provenance certificate.
- **5 – 25 kg** Distributor: multi-cohort fills, scheduled quarterly dispatch, DDP shipping available.
- **25 kg+** Strategic supply: long-term agreements, custom grading, branded packaging, NDA available.

Wholesale provides multi-village provenance, per-cohort cordycepin testing, nitrogen-sealed bulk or branded tins, DHL Express / EMS / DDP freight, CITES guidance and HS code support, dedicated WhatsApp account contact.

## Country shipping

- **United States** — DHL Express 4–7 days, automatic personal-use customs to 1kg. USD wire / Wise / USDT.
- **United Arab Emirates** — DHL Express 3–5 days to Dubai/Abu Dhabi. AED or USD wire, Wise.
- **Singapore** — DHL Express 3–4 days. HSA framework supported. SGD/USD wire, Wise.
- **Hong Kong** — DHL Express 2–4 days. Pricing $24–$110/g vs Sheung Wan retail $80–$140/g.
- 40+ countries served since 2010.

## Reviews aggregate

5.0 average across 8 verified reviews from US (Boulder CO), UK (London), France (Lyon), Singapore, Hong Kong, Taiwan, Japan (Kyoto), China (Shanghai), India (Mumbai), and the Lhasa-Kathmandu route. Practitioners, athletes, apothecary owners, and households placing repeat seasonal orders.

## Comparison summary (vs alternatives)

| Criterion | Royal Yarsa | Amazon listings | Hong Kong shops | CS-4 brands |
|---|---|---|---|---|
| Wild whole Sinensis | Yes | No (CS-4 powder) | Often yes | No (mycelium) |
| Named harvest year | Yes | No | Verbal only | Lab batch |
| Cordycepin assay | On request | Marketing only | Rare | Standard |
| Single cohort | Yes | No | Mixed | Single batch |
| Direct from origin | Yes (Kathmandu) | Marketplace | Re-export | China factory |
| Direct human contact | WhatsApp | Marketplace CS | In person | Distributor |
| Honest medical claims | Yes | Often not | Practitioner-led | Generic |
| Per-gram fair price | $24–$110/g | Inflated CS-4 | $80–$140/g | $8–$20/g |
| DHL + customs help | Yes | Yes | No | Partial |

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## Company Values

1. **Source Integrity**: Every piece wild-harvested above 4,500m. Never cultivated, never blended.
2. **Direct Trade**: 4–5× wholesale prices to harvester families. No middlemen, no marketplace.
3. **Sustainability**: Mature-piece-only collection; no soil disturbance; rotational meadow access.
4. **Honest Claims**: We refuse misleading "organic", "fair trade", or "CITES-certified" labels. We say what we are.
5. **Customer Care**: Every WhatsApp message answered personally by the family.
6. **Global Reach**: Shipping to 40+ countries since 2010 via DHL Express.

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## Disclaimer

Statements on this site reflect traditional use and ongoing research interest. They have not been evaluated by the FDA or equivalent regulators, and they are not intended to diagnose, treat, cure or prevent any disease. If you are pregnant, on medication or under treatment, please consult a qualified practitioner before adding Cordyceps Sinensis to your routine.

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## Contact

Royal Yarsa Pvt. Ltd.
Kathmandu, Nepal
Email: info@yarsa-gumba.com
WhatsApp: https://wa.link/euvx5k
Website: https://yarsa-gumba.com