Page 1 - Reviews - Primaforce, Peak O2®, Ultimate Mushroom Blend, 180 Capsules - iHerb
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Customer Ratings & Reviews

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4.7
Based on 45 ratings
37
4
2
2
0
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iHerb customer
Silver
Posted on Nov 19, 2025
Georgia
142
0
0
8
Verified purchase
High-quality mushroom superfood! Primaforce Peak O2 Mushroom Blend has excellent quality with clean ingredients. The taste is mild, and the size and dosage make it easy to take daily. This mushroom superfood boosts energy, supports immunity, aids detox, and delivers noticeable overall benefits. A reliable addition to any wellness routine.
goodxwolf
Gold
Posted on Oct 28, 2024
Canada
345
0
2
162
Essential Daily Superfood Supplement
Verified purchase
This is a reliable supplement that helps me manage and maintain my desired wellbeing; I take this in the morning in combination with specific supplementation for my age and requirements to support optimal health, cognitive, immunity, detox, and longevity goals & needs. This potent mushroom superfood product helps me to improve and boost my energy levels with gentle ease, and provides noticeable overall benefit, performing as expected if not exceeding expectation with the amount of support it offers. Ingredients are quality, capsule is average in size, no taste (if capsule not broken open), packaging is as expected, cost is great, and dosage is easy. Suitable for any diet.
Tania
Gold
Posted on Oct 20, 2025
Israel
306
0
1
69
The best mushroom mix
Verified purchase
Increase strength, stamina, after tried a lot of mushrooms mixes, this is a MUST of adaptogens.
iHerb customer
Gold
Posted on Nov 20, 2024
United States
311
0
1
22
Good
Verified purchase
I bought this for the mix of mushrooms that are good for me. So far I am loving this. It is a superfood that provides energy and has no after taste. it helps with my immunity and resistance.
iHerb customer
Posted on Aug 29, 2024
Bosnia and Herzegovina
62
0
0
7
Verified purchase
This mix of mushrooms are quality because ingredients are made of high quality materials.This superfood gives you very lot of benefit and improve your immunity.Package is enough for two months.
iHerb customer
Silver
Posted on Aug 29, 2025
Singapore
269
0
0
8
Verified purchase
The capsules are good sized for easy swallowing. The quality is good.
iHerb customer
Posted on Jul 27, 2026
Canada
3
0
0
0
Heard Good Things; Can't Confirm if it Works for Me
Verified purchase
Tried this product based on strong recommendations from others, but I haven't noticed any substantive difference in my throughpout. Now that could be because I am taking pre-workouts and gelatinized maca as well; or that it doesn't suit me too well. Not 100% sure.
iHerb customer
Gold
Posted on Apr 15, 2026
Israel
531
0
0
97
Big disappointment - 0 effect
Verified purchase
This product is completely useless. No effect. It's such a big disappointment after using NutraBio's product. The only reason I didn't give it 1 star - because it doesn't seems to be harmful. The 0 effect is literally 0 - not to the positive or to the negative.
Zax
Posted on Dec 11, 2024
Singapore
38
0
1
9
Reliable source of energy
Verified purchase
A high quality, studied blend of mushroom that boosts my energy. The benefits are especially apparent for my sprint workouts. I could go faster for more sets. Definitely giving it a repeat purchase.
iHerb customer
Gold
Posted on Mar 21, 2024
Israel
343
0
0
32
Verified purchase
Primaforce's Peak O2 Ultimate Mushroom Blend, available in a bottle containing 180 capsules with 2000 mg total (666 mg per capsule), is a powerhouse supplement for optimizing performance and overall well-being. Here's why I find it exceptional: Performance Enhancement: Peak O2 is a blend of six adaptogenic mushrooms known for their ability to support endurance, oxygen utilization, and overall athletic performance. Whether you're an athlete striving for peak performance or simply someone looking to enhance their physical abilities, this blend can provide valuable support. Adaptogenic Benefits: The adaptogenic properties of the mushrooms in Peak O2 help the body adapt to stress, both physical and mental, promoting resilience and overall well-being. This can translate to improved recovery, reduced fatigue, and better overall performance in various aspects of life. Convenience: With 180 capsules per bottle, each containing a potent dose of 666 mg of the Ultimate Mushroom Blend, Primaforce's Peak O2 offers excellent value for its effectiveness. The convenient capsule form makes it easy to incorporate into your daily routine without any hassle. Quality Assurance: Primaforce is known for its commitment to quality and purity, and their Peak O2 Ultimate Mushroom Blend is no exception. I trust that each capsule contains high-quality ingredients without any unnecessary fillers or additives, ensuring that I'm getting a clean and potent supplement with each dose. Overall Impression: Primaforce's Peak O2 Ultimate Mushroom Blend is a standout supplement for anyone looking to optimize their performance and overall well-being. With its powerful blend of adaptogenic mushrooms, it offers comprehensive support for endurance, recovery, and resilience. Whether you're an athlete, fitness enthusiast, or simply someone striving for optimal health, Peak O2 is worth considering. Highly recommended.