Power & Endurance with PeakO2® Mushroom Blend - Ingredient Review

Power & Endurance with PeakO2® Mushroom Blend - Ingredient Review

Oct 27, 2020Tristan van Moerkerken

After being home in protection against the worldwide pandemic that hit, focus is shifting to "getting back in shape". It can feel like a daunting task, overwhelming even the strongest of athletes. Many are turning to nootropic supplements to assist their workouts. We have tried and tested one of the leading physical and mental performance supplements currently on the market - PeakO2®.

Peak 02

What is PeakO2®?

PeakO2® is a USA grown, certified organic blend of nootropic & adaptogenic mushrooms which is aimed at enhancing physical & mental performance, including: Endurance, power recovery and more!

The 6 types of mushrooms in PeakO2® are:

  • Cordyceps (Cordyceps militaris)
  • Reishi (Ganoderma lucidum)
  • King Trumpet (Pleurotus eryngii)
  • Shiitake (Lentinula edodes)
  • Lion’s Mane (Hericium erinaceus)
  • Turkey Tail (Trametes versicolor)

Clinical studies have shown that PeakO2®:

  • Improves V02 Max
  • Enhances ATP Production
  • Increases Power Output
  • Reduces Lactate
  • Increases Time To Fatigue

Overall PeakO2® helps improve oxygen utilization and work capacity while decreasing lactate, helping athletes train longer and harder.

How to use PeakO2®:

Essentially, PeakO2® requires a “loading phase” to accumulate in the body and provide optimal results. So after the first week of taking PeakO2®, you may notice you know some improvements in endurance and/or performance but really the main benefits come in after about 3-4 weeks.

The recommended dose for PeakO2® is 1-4 grams per day and the benefits tend to accumulate with time. Therefore, we recommend a loading phase of 2-4g per day for 2 weeks followed by a maintenance dosage of 1g daily.

My PeakO2® Experience:

Here is my 4 week review & experience with the PeakO2® mushroom blend, results are based on

(1) the information supplied from my Garmin Forerunner 945, (2) Oura ring and (3) my anecdotal responses with regards to running, cycling & swim training, with an average of 10 training sessions per week.

Week 1-2

4g per day, split into 2x 2g dosages (morning and evening), approx. 30-45 minutes prior to training.

  • VO2 max remained constant
  • Recovery time remained constant
  • Morning Readiness scores remained constant

Week 3-4

2g per day, split into 2x 1g dosages (morning and evening), approx. 30-45 minutes prior to training.


  • VO2 Max increased by 2 points in total
  • Decreased recovery time needed between workouts
  • Morning readiness score trending upwards and is less influenced by harder training sessions
  • Overall energy levels are more consistent

Overall results:
There were no real notable effects during the first 2 weeks, still early in the “loading phase”. However, I did find that my natural energy levels started to increase towards the end of the second week and my morning readiness scores started to trend upwards in the last 2-3 days, regardless of strain from workouts.

However, during weeks 3-4, there was an increase in VO2 max by 2 points, workouts felt less strenuous and my body felt like it handled higher intensity workouts more efficiently and effectively.

There seems to be a clear increase in endurance capabilities which is attributed to the PeakO2® mushroom blend as there was little to no variability in the training, supplement and eating program.

Continued use beyond the 4 week mark should hopefully present more sustainable results and should confirm that the results mentioned above are attributed to the PeakO2® in particular!

Closing thoughts:

PeakO2® is versatile, safe and effective!

Depending on what your goals are, PeakO2® can be used as a standalone supplement or in combination with other ingredients to maximize results.
PeakO2® is ideal for anyone looking to maximize and increase their ability to utilize oxygen, reduce fatigue and increase overall physical performance. PeakO2® is certainly directed and suited for endurance sports, but increasing oxygen utilizing and reducing fatigue is ideal and beneficial for any physical activity.

No matter if you're a bodybuilder, endurance athlete, crossfitter, avid fitness enthusiast, or casual gym goer, PeakO2® is here to enhance your physical performance!

View our PeakO2® product here - PrimeSelf Core Series

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