EFECTIV® Peak O2®
PeakO2® is an organic-certified combination of six adaptogenic mushrooms including Cordyceps, Reishi, King Trumpet, Shiitake, Lion's Mane and Turkey Tail.
PeakO2® allows users to "adapt" to and overcome physical and mental stress, increasing power and endurance.
PeakO2® improves performance with the perfect blend of drinkability and efficacy. This makes it an extremely versatile ingredient that delivers a wide range of benefits.
Key Benefits
Enhanced Endurance & Stamina – Improves oxygen utilization (VO₂ max) to help you train harder for longer.
Increased Power Output – Supports sustained strength and performance during high-intensity exercise.
Faster Recovery – Reduces fatigue and helps muscles recover more efficiently between training sessions.
Adaptogenic Stress Support – Combines six organic mushrooms to boost resilience, focus, and overall workout capacity.
Nutritional Information
| Nutrient |
Per 2g Serving |
| Energy |
8 kcal |
| Fat |
0.1 g |
| of which saturates |
0.0 g |
| Carbohydrates |
1.4 g |
| of which sugars |
0.1 g |
| Fibre |
0.2 g |
| Protein |
0.3 g |
| Salt |
0.0 g |
Ingredients; Cordyceps, Reishi, King Trumpet, Shiitake, Lion's Mane and Turkey Tail.
No fillers or unnecessary additives, just 6 mushrooms for optimal performance.
How To Use
Simply mix a 2g serving with 200-300ml cold water, your pre, intra or post-workout shake, or with your favourite beverage.
You could also add to a smoothie or mix into your morning coffee.
For best results use PeakO2® daily.
Shipping & Returns
We offer FREE UK next working day delivery on every order.
Orders placed before 4pm Monday to Friday will be delivered the next working day. Any orders placed after 4pm will be delivered within 2 working days.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unopened and unused. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@efectivnutrition.com
