Peak O2 , 120 Grams Unflavored

• 1 Unflavored

If you are a runner or do any heavy cardio, give this a shot. Felt effects about a week in, I noticed I was able to take in alot more air and recovery after sprints was alot faster. Mixability is great but does taste earthy. Will keep buying this .

• 10 Unflavored

This has been a staple of mine for over a year. Really helps with endurance and powering through my workouts! 1 scoop in my Pre and 1 scoop in my intra.

• 10 Unflavored

I love how Peak02 makes cardio less grueling and improves overall cardiovascular capacity even on high rep exercises, supersets & dropsets. Been using it daily for the past 5 months and have made dramatic improvements on treadmill sprint time, manual treadmill max speed (14.6 on the Woodway Curve), elliptical, stairmaster & cardio bike endeavors. I highly recommend PeakO2 to everyone of all ages as it is all natural and benefits all sports and physical & cognitive activities.

• 8 Unflavored

I noticed quicker recovery between sets when you do amrap with it

• 9 Unflavored

I think the only way to see if this works or not is to isolate the product. I usually take this with a preworkout. After workout, I then add this to a protein shake. To be honest, I do not see any improvements whatsoever. I think people who see improvements are getting it from their preworkout or something else. Maybe I am taking this wrong? Maybe I need to put 2 scoops in my pre workout? I have two jars left so I might do that because this didn't do anything for me.

I definitely felt an increase in endurance and strength while taking Peak O2. Mind you I was having it with other supplements such as pre-workout, post-workout and protein.

Scoop before and after workout. For two months. Did nothing for me.

• 10 Unflavored

Works within days to increase endurance and time-to-exhaustion. I've noticed faster strength gains lifting, as well. I take 2 scoops on workout/cardio days, 1 scoop on off days. I just ran for the first time outdoors, and already I beat my faster per mile time than all of last year's runs. I love the taste. I mix it in a shot glass with just plain 'ol water. I find it to have an earthy-mushroom taste that is delicious. I don't know what's with the hotdog/mac-n-cheese eaters around here that need to mix it in something.

• 9 Unflavored

This product does what it says. I've noticed both increased endurance as well as increased power output/max strength. I have put up both rep PR's as well as max PR's since running Peak. Would recommend for anyone to try this product.

• 10 Unflavored

The folks at Scivation/Primaforce were kind enough to include me in their Peak O2 promotion/trial. I received my package from them in November. So I started a workout journal here http://forum.bodybuilding.com/showth...hp?t=172884081 that started when I first tried Peak O2. Nothing was changed except adding Peak O2, I started with just taking one scoop with my intraworkout Xtend and after a couple workouts added it also to my PWO (Nitraflex). This I believe is the best combination for me. I have seen personal records consistantly and have felt better overall performance and endurance along the way. Mixability 6/10 This really means nothing to me, as I always shake my drinks before consuming any of them. Plus its not like it's chuncky, just gets a buildup on the bottom. Taste N/A/10 No taste here which makes it nice because I can add it to anything. Effectiveness 10/10 Does what it says it does as I can tell by my logs along with my general overall feeling of endurance during workouts. Price 10/10 For $20 its a must for me, plus right now it's 30% off on BB.com Thanks to NEBinAK, Mike McCandless, IlliniTrack800m and Scivationlead

I have used this as well as Xtend Perform for a couple of months now. I have started to notice a decrease in time to exhaustion mainly at two scoops daily when a scoop of each is used. Make sure you mix it in with something flavored as shake it up well as it settles at the bottom.

• 5 Unflavored

I had the opportunity to try out Peak02. I used it preworkout (mixed in with my preworkout beverage) and postworkout (with a shake and creatine). During the weeks I tried out the Peak02, I only sipped on water intraworkout to really test out PEAK02. I was pleased with the ability my endurance while lifting along with muscle recovery after workouts. Strength and power increases were noticed as well. I did try the powder by itself in water once and it didnt taste to well so definitely would advise mixing it with something flavored. Overall, I would recommend to anyone looking to increase endurance power or strength, to add Peak02 to their arsenal

• 6 Unflavored

I have taken this product for a few weeks and it has been a good addition to my daily supplement stack. The most notable effects are the extended workout time, and power output. I was able to perform additional reps and I felt like it took a lot longer to fatigue. My workouts were much longer and I had more energy without feeling drained. I also noticed increased strength which was great. The powder mixed ok but had a few particles that didn't fully mix. The flavor is supposed to be unflavored but I did not like it very much. It tasted like bitter plants when taken alone. I had to mix it with amino acids or a preworkout to mask the taste and it was ok that way. Overall a great addition to a supplement stack for anyone looking to decrease fatigue and increase strength and power!!

• 10 Unflavored

I stack my peak O2 with my Extend Go for incredible focus and energy. Since adding Peak O2 to my supplementation in the past month I have added 55 pounds to my combined bench, squat, and deadlift. I highly recommend this to anyone looking for an increase in endurance and peak performance.

• 7 Unflavored

Great product. Helps with endurance and peak strength. Great addition to a PWO that is lacking in endurance. Became a fan of this after using Xtend Perform. Another great product from a reputable company. Highly Recommended.