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HR Labs

HR Labs Proven Non-Stim Pre-Workout

HR Labs Proven Non-Stim Pre-Workout

Regular price £37.99
Regular price £26.38 Sale price £37.99
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Proven is a next-level stim-free pre workout built for serious athletes who want clean energy, endurance, and performance, without caffeine or harsh stimulants. A true alternative to Defib, it delivers everything you need to train harder, longer, and smarter.

This no caffeine pre workout goes beyond pumps, supporting endurance, focus, and sustained energy output from start to finish.

Key Performance Ingredients:

Citrulline Malate, Oxystorm & Pomegranate Extract – Boost nitric oxide, blood flow, and muscle pump for improved performance and nutrient delivery.


L-Tyrosine, Uridine & CognatiQ – Enhance focus, cognition, and mind-muscle connection.


Taurine & Peak ATP – Support cellular energy production, endurance, and fatigue resistance.

Built with clinically dosed ingredients, Proven adapts to your training—whether you're chasing pumps, pushing endurance, or maximising strength.

The ultimate stim-free pre workout for energy, endurance, and performance, without caffeine.

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