Peak O2®, Ultimate Mushroom Blend, Unflavored, 4.3 oz (120 g)

This is where Prima Force shines in the low product pricing for high quality branded ingredients like Peak 02 for endurance, immunity and energy. During my Zone 2 workouts I can generally improve my power output (watts) on a Rogue Echo bike from 176 watts for 60 min at 20 miles total to 186 watts for the same distance and duration. For me that’s a pretty significant improvement and feel Peak 02 really helped! Their proprietary mixed mushroom component is probably key and luckily the taste is not too earthy so blends well into my summer workout drink as a side benefit.

this is good and it's much better than the other mushroom supplements ive tried. it's clearly quality. the powder is brown and you can taste the mushroominess. nothing fake. decent for energy, but dont expect crazy amazing results like some people are claiming here. there are other supplements for that.

As a bodybuilder who practices yoga, incorporating PeakO2 into my routine for a month has notably improved my overall performance. The endurance boost during intense workouts, coupled with enhanced recovery, has been remarkable. One downside is the slightly earthy taste, but when blended into a smoothie, it becomes more palatable. Consuming 2 grams before and after workouts, as well as on non-training days, has proven effective in maximizing the benefits. Despite the minor taste inconvenience, the tangible positive outcomes make PeakO2 well worth the investment for anyone seeking improved athletic performance.

I was very pleasantly surprised by how my focus increased at the most critical moments and during high-pressure situations in life — especially when presenting to investors. You follow your thoughts with great clarity, work through internal scenarios smoothly, and all of this has a positive impact on you. It raises your level of motivation, and what’s interesting is that there’s no after-effect like you get from caffeine. So go for it if you want to. I highly recommend it.

my endurance went up and I could notice increase in stamina. brand is well renowned must try for performance.

the quality was out of this world, the benefit was showing fast. This might be the best supplement in the entire world even the taste was good and don't get me started with the package just perfect. The size was so perfect for me i didn't believe it. I saw the symptom frequency AND the ingredient was so good it has all you need. It has all the minerals you need. BUY IT

It is not a miracle powder but consistent use gives added benefits in endurance and stamina. It helps if you are on clean diet and progressively increasing work load to see the difference it provides

Great and very high quality product from a trusted brand with a very fast delivery from iHerb

I’m really impressed with the quality of this supplement. The ingredients are clean and effective — no unnecessary fillers. Is a good size, easy to swallow, and doesn’t upset my stomach. I love that it provides a solid dose . Also, the packaging is sturdy and the bottle is easy to open. Great value overall!

I noticed a significant boost in my endurance and energy levels during workouts and a recent 10k marathon. Highly recommend for anyone looking to enhance performance naturally.