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What it is
A standardized extract of Cordyceps sinensis (the Cs-4 fermented strain), a mushroom adaptogen used for centuries to support stamina and the body's capacity to meet physical demand. It is standardized by HPLC to guaranteed levels of adenosine and polysaccharides for a consistent dose, and it is stimulant-free -- its energy support comes from metabolic mechanisms rather than caffeine-style stimulation.
Why the evidence supports it
Cordyceps pairs a long traditional track record with a real, if mixed, modern research base. Randomized, placebo-controlled trials in healthy older adults found Cs-4 raised the ventilatory (metabolic) threshold by around 10 percent during exercise, while an honest null trial in already well-trained cyclists showed no added endurance benefit -- a fair picture of who tends to respond. Lab work points to a plausible mechanism: cordycepin activates AMPK, a master metabolic-adaptation enzyme. That lands in the cell's Adapt function -- how cells and mitochondria adjust their energy output to the load you put on them. Standardization keeps the dose consistent, though this is still an emerging, non-stimulant support rather than a settled one.
What it supports
- Supports steady, non-jittery everyday energy
- Supports healthy stamina and exercise capacity
- Supports the body's ability to adapt to physical demand
- Supports healthy mitochondrial energy production
Which function it supports
Ties to the cell's Adapt function -- supporting how cells and mitochondria adjust their energy output to meet the demand you put on them.
Learn the why behind this pillarHow it relates to your cells and mind
Every product here ties back to a specific job your body does. This one touches the functions below -- follow either link to see the mechanism in full, then dig into the studies.
What it is made of -- and the mechanisms behind it
Each ingredient acts on several of the body's functions. Taken together, this product touches these cell and mind functions -- follow any to see the mechanism in full.
The ingredients
Mechanisms drawn from our ingredient knowledge base (1 profiled ingredients). Structure and function only -- not a treatment claim.
The science on the ingredients
These studies are research on the ingredients and mechanisms in this product, not on the finished product itself, and they are shown for education. For this ingredient most of the published work is laboratory or animal research rather than human trials, so read it as biology worth knowing rather than proof of an effect in people. Nothing here is medical advice, and nothing here may be used to diagnose, treat, cure, or prevent any disease. Talk to your own provider about what is right for you.
- Cordyceps Sinensis (CordyMax Cs-4) supplementation does not improve endurance exercise performance
International Journal of Sport Nutrition and Exercise Metabolism · 2004
A randomized, placebo-controlled trial in trained cyclists found that five weeks of Cordyceps sinensis supplementation did not significantly improve aerobic capacity or endurance performance, an honest null finding in already well-trained athletes.
- Cordyceps militaris improves tolerance to high intensity exercise after acute and chronic supplementation.
3 weeks of mushroom blend (4g/day) improved VO2max (~10.9%) and time-to-exhaustion vs
In 28 young adults, a randomized placebo-controlled trial of a Cordyceps militaris mushroom blend showed no significant change after one week, and in the 10 continuing three weeks, maximal oxygen uptake improved.
- Effect of Cs-4 (Cordyceps sinensis) on exercise performance in healthy older subjects: a double-blind, placebo-controlled trial
Journal of Alternative and Complementary Medicine · 2010
Twelve weeks of Cs-4 Cordyceps sinensis raised the metabolic (ventilatory) threshold by about 10 percent in healthy older adults during exercise testing.
- The scientific rediscovery of an ancient Chinese herbal medicine: Cordyceps sinensis Part I
J Altern Complement Med · 1998
This review compiles chemical, pharmacological, and toxicological research on Cordyceps sinensis, describing mechanisms including oxygen-free-radical scavenging and antisenescence activity.
- The scientific rediscovery of a precious ancient Chinese herbal regimen: Cordyceps sinensis: Part II
J Altern Complement Med · 1998
This review continues coverage of Cordyceps sinensis research, covering respiratory, renal, hepatic, cardiovascular, immune, and nervous-system mechanisms across preclinical and clinical studies.
- Immunopharmacology of Cordyceps sinensis
Chinese J of Integrated Traditional and Western Medicine · 1990
This paper reviews the immunopharmacological actions of Cordyceps sinensis observed in early research, supporting its adaptogenic and immune-modulating mechanism profile.
Randomized double-blind placebo-controlled clinical trial and assessment of fermentation product of Cordyceps sinensis (Cs-4) in enhancing aerobic capacity and respiratory function of the healthy elderly volunteersRandomized controlled trial2004
A randomized, double-blind, placebo-controlled trial in healthy elderly adults found that six weeks of a fermented Cordyceps sinensis preparation was associated with increased VO2max and anaerobic threshold compared with placebo.
Yi Xiao; Xizhen Huang; Jia-Shi Zhu -- Chinese Journal of Integrative Medicine
An authentic assessment method for cordyceps sinensis.2024
Researchers developed a gas chromatography method to authenticate genuine Cordyceps sinensis fungus samples by their chemical profile, comparing seven authentic and seven other samples to distinguish real product from counterfeits.
Duan D; Long C; Zhang H -- Journal of pharmaceutical and biomedical analysis
The scientific rediscovery of an ancient Chinese herbal medicine: Cordyceps sinensis: part I.1998
A 1998 review of research on the traditional Chinese fungus Cordyceps sinensis, drawing on studies and clinical trials involving over 2,000 patients, reported activity in free-radical scavenging, lipid-lowering and other physiological systems, with safety data covered separately.
Zhu JS; Halpern GM; Jones K -- Journal of alternative and complementary medicine (New York, N.Y.)
The scientific rediscovery of a precious ancient Chinese herbal regimen: Cordyceps sinensis: part II.1998
A review of preclinical and clinical studies on the fungus Cordyceps sinensis reported effects on respiratory, kidney, liver, heart, immune and nervous system measures across animal and human trials, summarizing existing research rather than new data.
Zhu JS; Halpern GM; Jones K -- Journal of alternative and complementary medicine (New York, N.Y.)
[Influence of Cordyceps sinensis (Berk.) Sacc. and rat serum containing same medicine on IL-1, IFN and TNF produced by rat Kupffer cells].1996
In cultured rat liver immune cells called Kupffer cells, exposure to the fungus Cordyceps sinensis or blood serum from rats fed the fungus increased production of interleukin-1 and interferon compared with untreated cells.
Liu P; Zhu J; Huang Y; Liu C -- Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
Comments on nomenclature in traditional Chinese medicine.1992
An opinion article on terminology argued that traditional Chinese medicine is the more accurate term than Chinese medicine or Oriental medicine, and distinguished herbal folk medicine from formal Chinese materia medica, without presenting new research data.
Bao K -- The American journal of Chinese medicine
Hepatitis B virus markers in Chinese twins.1989
In a study of 289 identical and 102 fraternal Chinese twin pairs plus matched singletons, hepatitis B infection and carrier status showed no significant difference in genetic concordance between twin types, suggesting limited genetic influence on infection response.
Lin TM; Chen CJ; Wu MM; Yang CS; Chen JS; Lin CC -- Anticancer research
CordyMax reduces serum oxidized LDL-cholesterol and increases HDL-cholesterol in humans with reduced HDL-cholesterolEmergingRandomized controlled trial2003
In adults with low HDL cholesterol, CordyMax was associated with reduced oxidized LDL and increased HDL cholesterol versus placebo, a lipid-metabolism structure/function finding.
Zhu JS, Pei Y, Wang B, Rippe J -- Circulation (abstract)
Cordyceps Sinensis (CordyMax Cs-4) supplementation does not improve endurance exercise performanceRandomized controlled trial2004
A randomized, placebo-controlled trial in trained cyclists found that five weeks of Cordyceps sinensis supplementation did not significantly improve aerobic capacity or endurance performance, an honest null finding in already well-trained athletes.
Parcell AC; Smith JM; Schulthies SS; Myrer JW; Fellingham G -- International Journal of Sport Nutrition and Exercise Metabolism
Cordyceps militaris improves tolerance to high intensity exercise after acute and chronic supplementation.Clinical trial
In 28 young adults, a randomized placebo-controlled trial of a Cordyceps militaris mushroom blend showed no significant change after one week, and in the 10 continuing three weeks, maximal oxygen uptake improved.
Katie R Hirsch; Abbie E Smith-Ryan; Erica J Roelofs; Eric T Trexler; Meredith G Mock -- 3 weeks of mushroom blend (4g/day) improved VO2max (~10.9%) and time-to-exhaustion vs
Extracts from Cordyceps cicadae and Hericium erinaceus promote the neurite outgrowth of retinal ganglion cellsEmerging2026
Aqueous Cordyceps cicadae extract, ethanolic Hericium erinaceus extract and purified erinacine S promoted neurite outgrowth in mouse retinal explants and isolated ganglion cells, though excessive concentrations inhibited growth.
Fang-Yi Chen; Chin-Chu Chen; Chuan-Chin Chiao
The scientific rediscovery of a precious ancient Chinese herbal regimen: Cordyceps sinensis: Part IILineageNarrative review1998
This review continues coverage of Cordyceps sinensis research, covering respiratory, renal, hepatic, cardiovascular, immune, and nervous-system mechanisms across preclinical and clinical studies.
Zhu JS, Halpern GM, Jones K -- J Altern Complement Med
Cordyceps militaris Enhances Wound Repair Through Regulation of HIF-1α, TGF-β1, and SIRT1/Nrf2/HO-1 Signaling in Diabetic Skin.2026
In diabetic mice and keratinocyte cell models, Cordyceps militaris extract accelerated wound closure and epidermal regeneration by restoring HIF-1alpha and TGF-beta1 expression and modulating SIRT1/Nrf2/HO-1 signaling.
Lin TK; Tsai CL; Tsai BC; Kuo CH; Ho TJ; Hsieh DJ; Kuo WW; Huang CY; Lee PY -- Life (Basel, Switzerland)
Pleiotropic Bioactivity of Caterpillar Fungus, Orange Cordyceps, and Cordycepin: Insight from Integrated Network Pharmacology and Food and Drug Regulatory FrameworkEmerging2026
Integrating 9 clinical systematic reviews and 37 network pharmacology studies, this review found recurrent PI3K-Akt and AMPK-mTOR hubs and notes oral cordycepin reaches only nanomolar systemic concentrations.
Alexander Panossian
The scientific rediscovery of an ancient Chinese herbal medicine: Cordyceps sinensis Part ILineageNarrative review1998
This review compiles chemical, pharmacological, and toxicological research on Cordyceps sinensis, describing mechanisms including oxygen-free-radical scavenging and antisenescence activity.
Zhu JS, Halpern GM, Jones K -- J Altern Complement Med
Medicinal Mushrooms and Their Bioactive Compounds: From Traditional Use to Therapeutic Potential.2026
Medicinal mushrooms including Cordyceps militaris, Ganoderma lucidum, and Grifola frondosa contain polysaccharides and triterpenoids studied for immune support, anti-inflammatory, antioxidant, antimicrobial, and anticancer bioactivity across preclinical and clinical research.
Sadowska A; Włosek-Pawełas D; Car H -- Molecules (Basel, Switzerland)
Synergistic Actions of Natural Compounds for Enhancing Cognitive and Physical Performance: A Narrative ReviewEmerging2026
A narrative review argues energy drinks rely narrowly on caffeine, and reviews guayusa, Alpinia galanga, L-citrulline, beetroot and cordyceps as agents that may enhance vascular and mitochondrial energy pathways, though standardisation and dosing vary widely.
Raghav Panda; Harvey N Mayrovitz
Summary of treatment of 37 chronic renal dysfunction patients with Jin Shui Bao (Cordyceps sinensis Cs-4)LineageCase report1995
A case series in a kidney-function-impaired population linked Cordyceps Cs-4 use to reported clinical changes, consistent with a cellular and metabolic support mechanism rather than a treatment claim.
Jiang J, Gao Y -- J of Management of Traditional Chinese Medicine (suppl)
Nature's marvel: unravelling the multiphase composition of Cordyceps militaris mushroom and its implications as a dietary supplement.2026
A review characterizes the multiphase chemical composition of Cordyceps militaris mushroom, examining its profile as a dietary supplement ingredient.
Parthasarathy S; Tharumasivam SV; Aly SH; Giridharan B; Durairaj S; Elbadry AMM; El-Shazly M -- Journal of food science and technology
The Genus <i>Cordyceps</i> Sensu Lato: Their Chemical Constituents, Biological Activities, and Therapeutic Effects on Air Pollutants Related to Lung and Vascular DiseasesEmerging2025
This review of Cordyceps species reports a randomised trial in 20 healthy adults where 2.85 mg cordycepin daily for 60 days raised NK cell activity, and another in 100 adults raising NK cytotoxicity and serum IgA.
Hye-Jin Park
Clinical and laboratory studies of Jin Shui Bao in eliminating oxygen free radicals in elderly senescent Xu-Zheng (asthenia syndrome) patientsLineage1995
In elderly adults with a traditional-medicine asthenia diagnosis, Cordyceps Cs-4 use was linked to reduced oxygen free-radical markers, consistent with an antioxidant and cellular-energy mechanism rather than a treatment claim.
Zhang Z, et al -- J of Management of Traditional Chinese Medicine (suppl)
Anti-cancer effects of cordyceps sinensis, C. militaris and C. cicadae and their mechanisms of action.2026
A review found that Cordyceps species and their bioactive components, including cordycepin, showed anti-cancer activity in preclinical studies through apoptosis induction, cell-cycle arrest, and signaling pathway modulation.
Gunter NV; Ong YS; Lai ZW; Morita H; Chamyuang S; Owatworakit A; Mah SH -- Journal of Asian natural products research
Maintaining the Quality and Nutritional Integrity of Chilled <i>Cordyceps sinensis</i>: Comparative Effects and Mechanisms of Modified Atmosphere Packaging and UV-Based InterventionsEmerging2025
During 12-day chilled storage of Cordyceps sinensis at 4 degrees C, vacuum packing cut weight loss to 3.49% versus 10.77% in controls, and UV lowered polyphenol oxidase activity 36.4%.
Tianzhuo Huang; Huanzhi Lv; Yubo Lin; Xin Xiong; Yuqing Tan; Hui Hong; Yongkang Luo
Experiences in treating patients of chronic bronchitis and pulmonary diseases with Cs-4 capsules (Jin Shui Bao)Lineage1995
Cordyceps Cs-4 use in a respiratory patient population was linked to reported symptom changes, consistent with an oxygen-utilization and respiratory-support mechanism rather than a treatment claim.
Han SR -- J of Management of Traditional Chinese Medicine (suppl)
Balanced by design -- we show supporting and contradicting findings. Search all studies
No product works in isolation
Every cell function above -- Sense, Exchange, Transform, Build, Maintain, Adapt -- needs the same broad base of optimal micronutrient levels running underneath it, all the time. CordyMax Cs-4 is not a stand-alone fix; it is one piece that plugs into that larger system. The foundation comes first, and this supports it.
Stacks well with
Pick your goal -- here is what CordyMax Cs-4 pairs with for each. Nothing works in isolation; these share the same systems.
For Energy & Mitochondria
For Immune
For Gut Health
Foundational, or targeted?
Not everything in the shop is meant to be taken forever. Some products here are foundational -- a daily nutrient base built for long-term, ongoing use. Others are targeted -- shorter-term support for a specific season, not a lifelong habit. If you are not sure which one this is, that is a fair question to ask us before you buy.
Learn more, on your terms
Do not take our word for it -- go read. Each topic below opens a pre-loaded search so you can explore the nutrient, the mechanism, or the device for yourself.
Search the full studies libraryHow to use it
Take with water, usually earlier in the day since it is energizing for some people. Many take it before activity. Follow the brand's serving size.
Where to get it
We are lining up the best way to get this one to you. In the meantime, reach out and we will point you the right way -- or browse the full shop to see every product.
See the full shopThe studies
See the research behind the science we point to.
Explore studiesThe blog
Plain-language reads on how it all fits together.
Read the blogOptimal nutrients are the definition of longevity
Long-term cell function depends on having what it needs, at the level it needs it, for as long as it needs it. That is the whole thesis behind everything we point you to here.
When you buy through our links, we earn a small commission -- and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
CordyMax Cs-4 is a standardized cordyceps mushroom extract, an adaptogen traditionally used to support stamina and the body's capacity to adapt to physical demand. It is a classic energy-and-endurance botanical rather than a stimulant. It suits people who want steady energy that comes from the cell, not a jolt of caffeine.
FAQ
What does CordyMax Cs-4 support?
It supports steady, non-jittery everyday energy, healthy stamina and exercise capacity, the body's ability to adapt to physical demand, and healthy mitochondrial energy production.
How do I take it?
Take with water, usually earlier in the day since it is energizing for some people. Many take it before activity. Follow the brand's serving size.
What makes it different?
As an adaptogen it supports the body's own ability to meet load instead of whipping it with a stimulant, and a standardized extract keeps the dose consistent.