How Does Pre-Workout Work?

Pre-workout works because each ingredient acts on a specific part of performance: caffeine raises energy and alertness, L-Citrulline supports blood flow, Beta-Alanine buffers fatigue, and a focus stack sharpens the mind. Together they raise the ceiling on your session.

Caffeine: energy and alertness

Caffeine blocks the signals that make you feel tired, raising alertness and perceived energy. This is the fast-acting part you feel first, usually within 20 to 30 minutes. See caffeine for training.

L-Citrulline: blood flow

L-Citrulline supports nitric oxide production, which helps widen blood vessels and improve blood flow to working muscles. That is what drives the pump and supports work capacity. See L-Citrulline benefits.

Beta-Alanine: buffering fatigue

Beta-Alanine raises muscle carnosine, which buffers the acid buildup that causes fatigue during hard efforts, so you can push more quality reps. See Beta-Alanine benefits.

The focus stack: sharpening the mind

Alpha-GPC and L-Tyrosine support mental drive and the mind to muscle connection, while L-Theanine smooths caffeine into calm, focused energy. See caffeine and L-Theanine.

Why timing matters

Because these ingredients need time to reach your bloodstream, taking your pre-workout 20 to 30 minutes before training lets it peak as you start. More in how long does pre-workout last.

How PUROX puts it together

PUROX combines these mechanisms in one balanced formula: strong clean energy, blood flow and endurance support, and a real focus stack, all transparently dosed so you know exactly how it works.

PUROX is a food supplement and is not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the EFSA or FDA. Always follow the recommended serving and do not exceed it. Not suitable for those sensitive to caffeine, pregnant or breastfeeding women, or anyone under 18. If you have a medical condition or take medication, consult a doctor before use.