Pure Cordyceps by Eu Yan Sang: Cultivated Wild Cordyceps Capsules


Pure Cordyceps (Hirsutella sinensis): Cordyceps capsules are the ideal supplement for supporting lung health and improving oxygenation, increasing energy levels, and improving stamina and endurance. Research also indicates Cordyceps can reduce symptoms of depression, increase testosterone in men, promote fertility in women, improve focus, and reduce inflammation.

Cordyceps sinensis is the most highly prized ingredient in Traditional Chinese Medicine, priced at up to $4,000 an ounce due to their rarity and difficult wild harvesting process in the high altitudes of the Himalayan Mountains. Unlike the other Cordyceps supplements available on the market which are comprised of the less expensive Cordyceps militaris, we have sourced this from a supplier who has replicated the natural environment to cultivate wild Cordyceps (Cordyceps sinensis), resulting in a strain of Cordyceps proven to be 99.645% identical to wild Cordyceps, according to rDNA sequence analysis (ITS 1, ITS 2 and 5.85rDNA).

Though Cordyceps has only recently exploded in popularity in the west, it has a long history of use in Tibetan and Chinese medicine. The first mention of Cordyceps in medical literature comes from the 15th century Tibetan medical tract Ten Million Instructions: A Relic, where it is mentioned as a remedy for ailments of sexual virility. Due to its limited availability, Cordyceps did not become known in China until as late as the Qing dynasty. The first mention of the medicinal comes from the 1713 volume “Annals of Sichuan” in which it was purported to be “warm in nature and restorative of the vital essences”. Subsequent Chinese materia medica would all generally emphasize Cordyceps effectiveness in chronic lung conditions and its potency as a virility-enhancing drug.

In modern times, the celebrated Chinese physician Li Ke (李可) used Cordyceps as a key medicinal in his formulas for treating people recovering from diseases of the lungs such as chronic bronchitis and pulmonary fibrosis. It is thus no surprise that the Journal of Science and Healing recommended cordyceps as a key medicinal in convalescence from Covid-19, citing its ability to improve ventilatory capacity and reduce airway inflammation.[1]

After Chinese long-distance female runners shattered world records in 1993 and 1994 with the help of Cordyceps sinensis supplements, research into the caterpillar fungus exploded in the west. In the following we’ll detail some highlights from this bevy of research with regard to three particular actions: exercise performance enhancement and anti-fatigue, anti-inflammation and sexual health.  

Exercise Performance Enhancement and Anti-Fatigue

  1. Chen S. et al, (2010) performed a double-blind, placebo-controlled trial to examine the effect of Cordyceps Sinensis on aerobic capacity in the elderly. After 12 weeks, the medicinal was found to increase the metabolic threshold and ventilatory threshold of subjects. This indicated that Cordyceps could promote better aerobic performance in the elderly.[2]
  2. Li and Li (2009) and Yan et al (2012) found that C. sinensis polysaccharides extended the time to exhaustion in swimming mice, increased hepatic and muscle glycogen levels, and decreased the blood lactic acid and blood urea nitrogen (BUN) levels. Such observations confirmed the anti-fatigue effects of C. sinensis polysaccharides.[3]
  3. P. Singh et al. (2014) found that Cordyceps not only increased muscular endurance in mice, it also had an anti-depressant and mood-elevating effect. The increase in muscular endurance was attributed to increased oxygenation.[4]


  1. Park et al. (2014) documented that Cordyceps Sinensis extracts exert clear anti-inflammatory effects by downregulating NO production and pro-inflammatory cytokines, making it useful as an anti-inflammatory drug or supplement. This is, of course, also part of why Cordyceps was recommended above for convalescence in Covid related lung injury. [5]

Sexual Performance Enhancement and Infertility

  1. Cordyceps has been shown to significantly increase testosterone production in male mice and estrogen production in female mice. [6] [7] Increased testosterone in men not only promotes a stronger sex-drive, it also helps build muscle mass and improves mood. In women, higher estrogen levels increase libido, combat vaginal dryness, boost mood and protect the brain. Furthermore, the estrogenic and progestogenic properties of Cordyceps may aid in promoting fertility in women suffering from low levels. [8][9]

About our Cordyceps: Eu Yan Sang Cordyceps Capsules are made from Cordyceps harvested in an optimum natural environment for cordyceps cultivation using the most advanced bio-technological processes of purification. This ensures purity, consistency, and retention of high bioactive compounds of the product.

The only ingredient in our Cordyceps capsules is Hirsutella sinensis. With a 99.645% genetic similarity to wild Cordyceps, our Cordyceps capsules contain natural bioactive compounds of high potency found in wild Cordyceps, to help improve vitality and general health.

Eu Yan Sang strictly replicates a unique set of growth conditions that are geographically authentic to the natural habitat of wild cordyceps. These conditions of temperature, water quality, oxygen levels, ventilation, humidity, and nutrients are tightly monitored to ensure the optimal environment for the cultivation of the Hirsutella sinensis in these Cordyceps capsules. The unique extraction techniques used in our Cordyceps capsules preserves the activity of bioactive compounds in Hirsutella sinensis.

Energized, small-molecule clustered water is used, which gently extracts yet at the same time preserves all the important components that matter.

Ingredients: 500mg of 100% Cordyceps (Hirsutella Sinensis) per capsule, with a 99.645% genetic similarity to rare Wild Cordyceps

Vegetarian, preservative-free, and heavy metal-tested. Contains no fillers. Made in Taiwan. 60 Capsules.

About the Manufacturer: Singapore-based Eu Yan Sang is one of the oldest and most respected Traditional Chinese Medicine companies in the world, recognized for its high quality and industry-leading innovations. Founded in 1879 by Eu Kong, the company has maintained its original mission of "Yan Sang," translated as "caring for mankind," for over 140 years. With several Good Manufacturing Practice manufacturing facilities, including in Hong Kong and Malaysia, it also maintains over 170 shops across Asia, as well as 30 TCM clinics in Singapore, Malaysia, Hong Kong, and China.

Instructions: Best taken on an empty stomach. For young children, capsule may be opened, and contents poured into food or beverages for easy consumption.

3 - 6 years old
Maintenance 0.5 capsule daily
Stamina 0.5 capsule daily

7-12 years old
Maintenance 1 capsule daily
Stamina 2 capsules daily

Adult and children 12 years old and above
Maintenance 2 capsules daily
Stamina 2 capsules 2x daily


[1] https://sci-hub.ru/10.1016/j.explore.2020.12.005

[2] Chen S., Li Z., Krochmal R., Abrazado M., Kim W., Cooper C. B. (2010). Effect of Cs-4® (Cordyceps sinensis) on exercise performance in healthy older subjects: a double-blind, placebo-controlled trial. J. Alternative Compl. Med. 16, 585–590. 10.1089/acm.2009.0226

[3] Li T., Li W. (2009). Impact of polysaccharides from Cordyceps on anti-fatigue in mice. Sci. Res. Essays. 4, 705–709. 10.5897/SRE.9000570

[4] Singh K. P., Meena H. S., Negi P. S. (2014). Enhancement of neuromuscular activity by natural specimens and cultured mycelia of Cordyceps sinensis in mice. Indian J. Pharmaceut. Sci. 76, 458–461. 10.4103/0250-474X.143105

[5] Park S. Y., Jung S. J., Ha K. C., Sin H. S., Jang S. W., Chae H. J., et al. (2014). Anti-inflammatory effects of Cordyceps mycelium (Paecilomyces hepiali, CBG-CS-2) in Raw264.7 murine macrophages. Orient. Pharm. Exp. Med. 15, 7–12. 10.1007/s13596-014-0173-3

[6] Huang B. M., Hsu C. C., Tsai S. J., Sheu C. C., Leu S. F. (2001). Effects of Cordyceps sinensis on testosterone production in normal mouse Leydig cells. Life Sci. 69, 2593–2602. 10.1016/s0024-3205(01)01339-x

[7] Sohn S.-H., Lee S.-C., Hwang S.-Y., Kim S.-W., Kim I.-W., Ye M., et al. (2012). Effect of long-term administration of cordycepin from Cordyceps militaris on testicular function in middle-aged rats. Planta Med. 78, 1620–1625. 10.1055/s-0032-1315212

[8] Pan BS, Lin CY, Huang BM. The Effect of Cordycepin on Steroidogenesis and Apoptosis in MA-10 Mouse Leydig Tumor Cells. Evid Based Complement Alternat Med. 2011;2011:750468. doi: 10.1155/2011/750468. Epub 2011 Jun 5. PMID: 21716681; PMCID: PMC3118483.

[9] Estrogenic Substances from the Mycelia of Medicinal Fungus Cordyceps ophioglossoides (Ehrh.) Fr. (Ascomycetes)

Volume 6, Issue 3, 2004, 4 pages International Journal of Medicinal Mushrooms