Rein Performance systems® 01 | Foundation

A Modern Stress, Recovery & Sleep System

Optimise performance through complete recovery — a precision system grounded in science.

Foundation KSM-66® Shop All

Rein Performance systems® 02 | Cellular

Performance and Longevity System for the Modern Man

Optimise your performance and longevity with a precision system built on science.

Cellular NMN+ Shop All

Built for Your Prime

REIN is a performance system grounded in science and built for longevity. Every formula targets a core pillar of human optimization—stress control, cellular energy, recovery, and drive. Designed for consistency, not spikes, it helps you sustain your prime with clarity and control.

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Precision Supplements

KSM-66 Ashwagandha® KSM-66 Ashwagandha®

KSM-66 Ashwagandha®

£24.99 GBP
Available in 1 title
    Cellular NMN+ Cellular NMN+

    Cellular NMN+

    £49.99 GBP
    Available in 1 title
      Stay in your prime for longer
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      What is RPS?

      A precision system engineered for male performance and vitality. Built on three pillars.
      • Foundation | Stress resilience and recovery
      • Cellular | Cellular energy and longevity
      • Core | Drive and performance (Coming in 2026)

      A system designed to help you perform better—from stress resilience to cellular energy, longevity, and drive.


      Multi-layered approach for male vitality

      Rein Performance Systems®

      Cellular®

      Cellular®1

      Advanced cellular support
      Foundation®

      Foundation®1

      Stress resilience and hormonal base layer
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      Science & Insights