ENERGY, ENDURANCE & OXYGEN OPTIMIZATION
30-day supply
Key Benefits
Supports energy production and oxygen utilization
Promotes athletic endurance and stamina
Supports immune system modulation
May enhance respiratory function
Wellness Goals
Recommended Dose
500mg
Take one 500mg capsule daily, ideally in the morning or before exercise. Cordyceps works best with consistent daily use, with peak benefits developing over 2-4 weeks. It's stimulating in nature, so avoid taking it close to bedtime.
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Doctor Formulated
cGMP Certified
The Details
Cordyceps first grabbed international attention in 1993 when Chinese distance runners shattered multiple world records, and their coach attributed their performance to a cordyceps-based tonic. While that claim was controversial, the science that followed has been genuinely impressive.
Cordyceps works by increasing your body's production of adenosine triphosphate (ATP) — the fundamental energy currency of every cell. It also improves how efficiently your cells use oxygen, a mechanism measured by VO2 max. Studies show cordyceps supplementation improves VO2 max, delays the onset of fatigue during exercise, and enhances overall endurance capacity.
But you don't need to be an athlete to benefit. Cordyceps supports the kind of sustained, clean energy that carries you through a demanding day — without the crash of caffeine. It also modulates the immune system, helping it respond appropriately without overreacting. Traditional Chinese medicine practitioners have used it for centuries to support respiratory health, kidney function, and general vitality.
Research
Key studies supporting Cordyceps, from peer-reviewed journals.
Immunomodulatory effects of a mycelium extract of Cordyceps: a randomized and double-blind clinical trial — 2019
Study titles are simplified for readability. Provided for informational purposes — not medical advice.
Transparency
Every batch is independently tested by ISO-17025 accredited labs for purity, potency, and contaminants.
Designed by healthcare professionals using evidence-based research and clinical expertise.
Manufactured in cGMP & UL certified, FDA-registered facilities with a flawless inspection record.
Important Information
Not suitable for
Those with autoimmune conditions should consult their healthcare provider before use, as cordyceps modulates immune function.
As with any natural health product, consult your healthcare practitioner. Store in a cool, dry place. Keep out of reach of children. Discontinue use immediately if you experience an adverse event.
What people say
Really good supplement brand. The daily pack format is so convenient and I've been 100% consistent because of it. The quiz was genuinely thorough. Knocked one star off because I'd love the option to add or remove individual supplements as I learn more about my body.
I've tried so many supplements and honestly nothing has worked like this. The quiz is actually thorough and the results show it. Energy is UP, recovery is UP, sleep is SO much better. Can't believe it took me this long to find this brand.
Three weeks in and I already feel the difference. My morning energy is COMPLETELY different. No more dragging myself out of bed. The personalization through the quiz is what makes it work — it's not just a generic multivitamin. Stack actually thought about what MY body needs.
I've been on a health optimization journey for about three years and have tried what feels like every supplement brand on the market. Most of them are either generic multivitamins dressed up in pretty packaging, or they're so specific that you need to be a nutritionist to understand what you're actually taking. Stack sits in a completely different category. The quiz is the first thing that impressed me. It asks genuinely intelligent questions — not just 'how old are you and what's your gender' but questions about your diet, your sleep patterns, your stress levels, your exercise frequency. It felt like a real consultation rather than a data collection exercise. The pack that arrived was clearly personalized to my answers. After six weeks, the improvements have been consistent and measurable: better sleep quality, more stable energy throughout the day, and noticeably faster recovery after my runs. My partner commented that I seemed more 'on' in the evenings rather than crashing after dinner. The daily pack format is brilliant for compliance — I've been 100% consistent because the habit is so frictionless. One pack, done, every morning. No bottles, no measuring, no forgetting half of them. Genuinely one of the best health investments I've made.
My focus at work has been sharper and I'm waking up without that groggy feeling I used to have every morning. Told two friends about Stack already. Customer support was also really helpful when I had a question about one of the ingredients.
honestly wasn't sure about it at first but three weeks in and i'm so glad i tried it. energy is way better, i'm sleeping properly for the first time in months. the quiz was really detailed which gave me confidence it was actually personalized. would 100% recommend.
Personalized for you
Take our 2-minute Health Assessment and let our AI build your personalized stack — every supplement chosen for your specific goals.
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