CordyMax Cs-4® Bottle (USA)

The Pre-Workout Shelf Is Full of Stimulants — This Isn't One of Them

Walk into any GNC or Vitamin Shoppe from Austin to Chicago and the energy supplement aisle is stacked floor-to-ceiling with caffeine, beta-alanine, and neon-colored pre-workouts. CordyMax Cs-4® ($29.00) takes a different route entirely: it works at the mitochondrial level, supporting cellular ATP production and oxygen utilization through a scientifically validated, standardized strain of Cordyceps sinensis — no stimulants, no crash. If you're a Houston marathon runner, a Denver hiker fighting altitude fatigue, or a San Francisco commuter who simply wants sustained daily energy without bouncing off the walls by 3 PM, CordyMax is the non-stimulant cordyceps option built around one ingredient done right.

Best suited for: Adults seeking non-stimulant, mitochondria-level energy support for daily stamina and exercise endurance — especially endurance athletes, active adults noticing age-related fatigue, or anyone testing the core cordyceps ingredient before committing to the full ageLOC R² system.

Less suited for: Anyone expecting an immediate caffeine-like energy hit — Cordyceps builds cellular capacity over days to weeks, not minutes. Also not a replacement for medical evaluation of chronic fatigue.

Pairs well with: ageLOC® R² Day (broader cellular energy complex), Nano CoQ10 (complementary mitochondrial support), Marine Omega (cardiovascular + energy foundation).

What Makes CordyMax Cs-4® Different

Most cordyceps supplements on the US market — including many found on Amazon and at Whole Foods — use Cordyceps militaris or mycelium grown on grain substrates, neither of which is the traditionally studied Cordyceps sinensis species. Wild-harvested Ophiocordyceps sinensis can fetch over $20,000 per kilogram on the global market, making a consistent, affordable supplement based on wild material essentially impossible.

CordyMax uses Cs-4 — a specific, laboratory-cultured strain of Cordyceps sinensis developed through fermentation technology. This isn't a generic mycelium product. The Cs-4 strain has been validated in multiple clinical trials to produce the same bioactive compound profile as wild-harvested sinensis, with one critical advantage: standardized, batch-consistent potency that wild collection simply cannot guarantee.

The Clinical Evidence Behind Cs-4

A randomized controlled trial published in the Journal of Alternative and Complementary Medicine (Chen et al., 2010; PMID: 20804368) demonstrated that Cs-4 supplementation improved VO₂ max (aerobic capacity) and endurance in healthy adults after just three weeks of consistent use. The mechanism is not stimulant-based — it is mitochondrial. Cordyceps sinensis supports ATP synthesis within cells, the fundamental currency of biological energy, and improves how efficiently cells utilize available oxygen during aerobic activity.

Key Ingredient at a Glance

• Cordyceps sinensis Cs-4 (standardized cultured strain) — clinically studied for mitochondrial ATP production support, oxygen utilization, and aerobic capacity. Effects are cumulative and backed by peer-reviewed human trials, not animal models alone.

How It Compares

Product	Cordyceps Species / Form	Standardization	Clinical Trial Data on Strain	Stimulant-Free
CordyMax Cs-4® (Nu Skin)	Cordyceps sinensis Cs-4 — fermentation-cultured, species-verified	Yes — standardized Cs-4 strain with consistent bioactive compound levels	Yes — human RCT, PMID 20804368 (VO₂ max, endurance)	Yes
NOW Foods Cordyceps (health food stores)	Typically Cordyceps militaris fruiting body or mycelium blend — not sinensis Cs-4	Standardized to cordycepin content (militaris marker, not sinensis marker)	No strain-specific human RCT data for this product's strain	Yes
Thorne Memoractiv (practitioner-grade)	Cognitive/energy blend — does not feature cordyceps sinensis as primary ingredient	Multi-ingredient formula; no dedicated Cs-4 standardization	Not applicable — different mechanism and ingredient focus	Yes
Garden of Life Mykind Mushroom Immunity (Whole Foods)	Multi-mushroom blend including cordyceps — species and strain not specified on label	Certified organic; no Cs-4 strain standardization	No specific RCT on this formulation's cordyceps component	Yes

Table reflects publicly available formulation data. Ingredient forms and concentrations are meaningful differentiators — the Cs-4 strain designation matters because it is the strain with direct human clinical trial evidence for aerobic capacity improvements.

How to Use

Take 2 capsules twice daily with meals. Energy and stamina support typically becomes noticeable within 1–3 weeks of consistent daily use. Because the mechanism is mitochondrial — not stimulant-driven — consistency matters more than timing relative to workouts. That said, taking a dose before exercise is fine and contributes to the cumulative benefit over time.

Frequently Asked Questions

Can I order CordyMax Cs-4® in the US without a membership or subscription?

Yes. CordyMax is available for direct purchase at nubestskin.com/us with no membership required. Orders ship from the official Nu Skin US warehouse, typically arriving within 3–5 business days across the continental United States. Alaska and Hawaii customers may see additional transit time.

How is CordyMax different from ageLOC® R² Day?

CordyMax contains Cordyceps sinensis Cs-4 as a focused, single-ingredient supplement. ageLOC® R² Day ($59.00) builds on Cordyceps Cs-4 by adding pomegranate extract and chokeberry extract in a broader cellular energy and antioxidant complex. If you want to isolate the cordyceps benefit specifically, CordyMax is the direct, lower-investment option. If you want the full multi-ingredient cellular energy formula, R² Day expands on the same foundation.

Will CordyMax give me energy before a workout like a pre-workout supplement?

Not in the immediate, caffeine-like sense. CordyMax works at the mitochondrial level — it supports how your cells produce and use energy over time, not how quickly your central nervous system is stimulated. Consistent daily use for 1–3 weeks is where the clinical data shows meaningful improvements in aerobic capacity and endurance. It's a foundation-building supplement, not an acute ergogenic aid.

Is this safe to take with other supplements in the Nu Skin range?

CordyMax is commonly paired with Nano CoQ10 for layered mitochondrial support, and with Marine Omega for a broader cardiovascular and energy baseline. As with any supplement combination, consult your healthcare provider if you take prescription medications or have an existing medical condition.

Why does the strain name "Cs-4" matter when buying cordyceps?

Most cordyceps supplements on the US market — at every price point — do not specify a validated strain. Cs-4 is a specific fermentation-cultured strain of Cordyceps sinensis with its own peer-reviewed human clinical trial data on aerobic capacity (VO₂ max). Without strain verification, you cannot know whether a product reflects the same research that generated the published results. Cs-4 standardization is the formulation differentiator here, not simply the word "cordyceps" on the label.

Is CordyMax appropriate for older adults experiencing age-related energy decline?

The clinical trial data on Cs-4 included healthy adults broadly, and the mechanism — supporting cellular ATP production — is relevant to the natural mitochondrial slowdown associated with aging. Adults noticing declining exercise capacity, earlier-than-usual fatigue during physical activity, or reduced stamina are the profile that aligns most directly with what the published research studied. Always discuss new supplements with your physician if you are managing age-related health conditions or taking medications.

Works With — Product Ecosystem

• ageLOC® R² Day (Vitality) — the full cellular energy complex that includes Cordyceps Cs-4 plus pomegranate and chokeberry extracts ($59.00)
• ageLOC® R² Night + Day — complete day-and-night cellular renewal system for energy and restoration ($118.00)
• Nano CoQ10 — nanoemulsion CoQ10 for complementary mitochondrial energy support ($49.90)
• Marine Omega — omega-3 cardiovascular and cellular foundation ($53.90)
• LifePak® Anti-Aging Formula — comprehensive multi-nutrient base for adults building a full supplement routine ($82.00)

Sources & References

• Chen S, et al. "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. PubMed PMID: 20804368
• Zhu JS, et al. "The scientific rediscovery of an ancient Chinese herbal medicine: Cordyceps sinensis." Journal of Alternative and Complementary Medicine, 1998. PubMed PMID: 9449917
• Nu Skin Enterprises — CordyMax Cs-4® product documentation. nuskin.com

Written by the NuBest Skin Editorial Team. Last updated: April 2026.

*Independent Nu Skin Brand Affiliate — not produced or endorsed by Nu Skin Enterprises Inc.*

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.*