Page 1 - Reviews - NutraBio, PeakO2®, 180 Capsules - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorised distributors.Show more
4.8
Based on 30 ratings
26
3
1
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What customers say
(6)
 
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English (UK)
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English (UK)
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Roman
Gold
Posted on 17/01/2026
Kazakhstan
595
0
0
66
Verified Purchase
An excellent supplement with a good composition of healthy mushrooms, I drink it to support immunity and energy
Auto-translated from Russian
iHerb Customer
Gold
Posted on 9/04/2026
Israel
523
0
0
93
True performance booster
Verified Purchase
The effect from this product is significant and undeniable. It allows much better performance. significantly better. the effect doesn't last longer than 2 hours ~maybe 3 hours at most (I didn't ever stopped to take a second / additional dose), but for a swim or a run session it's enough. No negative effect. The effect is very pleasant, without any harsh strains on the nervous system. After the first bottle I tried, I've bought at least 5 already, I liked it so much. 10 stars!
Auto-translated from English
iHerb Customer
Gold
Posted on 24/12/2025
Ukraine
3,720
0
0
80
Verified Purchase
Excellent product quality, good ingredients, great size, price advantage on the market, I buy it often, everything is always very cool, easy to use, I highly recommend it.
Auto-translated from Ukrainian
iHerb Customer
Gold
Posted on 6/04/2026
Israel
432
0
1
51
Noticeable effect
Verified Purchase
My performance is significantly better. There are no jilters. I’ll continue to use this product.
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iHerb Customer
Posted on 1/01/2026
Jordan
15
0
0
0
mushrooms
Verified Purchase
Quality, packaging, age, minerals, ingredients, benefits, taste, aroma, ingredients, quantity, use, size, effect, color, use, composition, energy
Auto-translated from Arabic
iHerb Customer
Silver
Posted on 16/04/2026
China
166
0
0
1
Verified Purchase
The quality is excellent, great for fitness.
Auto-translated from Chinese, Simplified