Cordyceps CS-4 (New Zealand)

Cordyceps CS-4 is a standardised mushroom extract that supports natural energy production, oxygen utilisation, and endurance. The CS-4 strain is the most clinically studied form of Cordyceps sinensis, with research showing measurable improvements in aerobic capacity and cellular ATP production. At NZ$68 for 100 capsules, it's a targeted supplement for Kiwis who want to support energy and performance through a natural, adaptogenic mechanism rather than stimulants.

What Makes Cordyceps CS-4 Different

Cordyceps has become a trendy supplement, but quality varies enormously. Many products use Cordyceps militaris (a related but different species) or unstandardised mycelium on grain — which is mostly starch with minimal active compounds. Nu Skin's CS-4 uses a standardised fermentation extract of the sinensis strain, matching the form used in most clinical research.

A randomised controlled trial in The Journal of Alternative and Complementary Medicine (2010;16(5):585-590) found that CS-4 supplementation improved VO2 max and exercise performance in older adults. The mechanism: Cordyceps supports mitochondrial ATP production — the actual energy currency your cells use — rather than stimulating adrenal response like caffeine does.

For active New Zealanders — trampers, cyclists, runners, rugby players — the oxygen utilisation benefit is particularly practical. NZ's varied terrain (sea level to alpine in a few hours) places real demands on aerobic capacity, and Cordyceps supports the cellular machinery that handles those demands.

Key Ingredients

Cordyceps sinensis CS-4 (standardised extract): Contains adenosine and cordycepin — bioactive compounds that support mitochondrial function and ATP production. The standardised extract ensures consistent potency across batches.

How to Use

Take 2-4 capsules daily with food. For exercise performance support, take 30-60 minutes before physical activity. For general energy support, morning dosing works well. The energy effect builds over 2-3 weeks of consistent use rather than being an acute pre-workout boost.

Frequently Asked Questions

Q: Where can I buy Cordyceps CS-4 in New Zealand?

Order from nubestskin.com — no registration needed. All orders ship from the official Nu Skin New Zealand warehouse. Standard shipping: NZ$4.99, free on orders over NZ$99. Typical delivery: 2-5 business days.

Q: How is this different from ageLOC R²?

CS-4 Cordyceps is one of the ingredients in R² Day, but Cordyceps CS-4 provides it as a standalone supplement at a higher dose. R² combines Cordyceps with additional gene expression-targeting ingredients for a broader cellular energy approach. If you want focused Cordyceps support only, this standalone product delivers that at a lower cost than the full R² system.

Q: Will it give me energy like caffeine?

Not in the same way. Caffeine stimulates your adrenal system for a quick buzz and subsequent crash. Cordyceps supports mitochondrial ATP production — your cells' actual energy generation. The effect is steadier and builds over weeks rather than hitting immediately. No jitters, no crash.

Q: Is it safe for daily long-term use?

Cordyceps has been used in traditional medicine for centuries and has a strong safety profile in clinical research. No cycling on/off is needed.

Q: Can athletes use this?

Yes. Cordyceps CS-4 is not on any banned substance list. It supports aerobic capacity through natural energy production pathways.

Important Information

Important Information: This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare professional before use, especially if you are pregnant, nursing, taking medication, or have a medical condition. Dietary supplements are regulated under New Zealand's Dietary Supplements Regulations. Individual results may vary. Store in a cool, dry place away from direct sunlight.

NuBest Skin is an Independent Nu Skin Brand Affiliate. This content is not produced or endorsed by Nu Skin Enterprises Inc.

Sources & References

1. Chen S, et al. Effect of Cs-4 on exercise performance in healthy older subjects. The Journal of Alternative and Complementary Medicine. 2010;16(5):585-590.

2. Nu Skin Pharmanex. Cordyceps CS-4 product documentation, 2024.

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