Efectiv Nutrition PeakO2 120g Unflavoured

Cordyceps militaris (Cordyceps), Ganoderma lucidum(Reishi), Pleurotus eryngii (King Trumpet), Lentinulaedodes (Shiitake), Hericium erinaceus (Lion s Mane),Trametes versicolor (Turkey Tail) (as PeakO2 )

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Please consult the product packaging for accurate instructions on how to use the product.

The Primary Benefit Is: Exercise Performance Support

Exercise performance support explains how the product helps your body cope with physical stress and keep you moving during training and competition. The PeakO2 mushroom blend is the main ingredient, offered as a simple, organic-certified mix with no extra additives.

This blend is meant to slot into your training routine to boost endurance during tough efforts and recovery stretches, with a focus on sticking to a daily habit to maximise benefits.

How Does This Support Exercise Performance?

The PeakO2 mushroom blend could help lift endurance and peak power, and it can push fatigue back during intense workouts. It is aimed at supporting oxygen utilisation and cellular energy production, which line up with claimed ergogenic effects of the blend.

Plus, the blend contains antioxidant components that may help resilience to physical stress and support immune health during training. These functions fit with everyday physiological processes described for adaptogenic mushroom blends.

This product isn't meant to diagnose, treat, cure, or prevent any disease.

Efectiv Nutrition is the brand we choose for PeakO2 Unflavoured because of its straightforward, transparent model and strong standing in the UK sports nutrition landscape. As a UK-based brand recognised for sourcing branded, research-backed ingredients such as PeakO2, it has built a reputation for clarity and reliability, which aligns with our commitment to trust and safety.

This brand uses premium, branded ingredients produced to high standards, with PeakO2 sourced from Compound Solutions and manufactured in the USA under organic conditions. Our team evaluates brands against clear criteria for quality, traceability and consistency, and Efectiv Nutrition consistently meets these expectations while emphasising product integrity and openness to third party scrutiny via its ingredient partners.

This partnership is grounded in our belief that disciplined quality practices and a positive manufacturing ethos drive reliable performance support. We evaluated the brand with our medical experts to ensure alignment with our our team of medical experts and our supplement quality standards. The result is a product-forward collaboration that fits PeakO2’s profile and Welzo’s quality benchmarks.