Description
The pump ingredient. In its purest form.
L-Arginine is a semi-essential amino acid your body uses to produce nitric oxide — the compound that widens blood vessels, increases blood flow to working muscles, and gives you that full, vascular pump during training.
Most people get some L-Arginine from food. But if you’re training hard, the demand goes up. Supplementing directly is the simplest way to make sure you’re not leaving performance on the table.
GYM HIGH Pure L-Arginine is 100% pharmaceutical-grade powder. No fillers, no additives, no flavouring. Just the amino acid, in the dose you choose.
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3 g per serving
166 servings per tub — 16p each
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100% pure
No fillers, no additives, no flavouring
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Vegan-friendly
No animal-derived ingredients
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30–45 min pre-workout
Or add to any existing shake
Three reasons people add it to their stack
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Blood flow and muscle pump
L-Arginine is a direct precursor to nitric oxide. More nitric oxide means wider blood vessels, better circulation, and more oxygen reaching your muscles when it counts. The pump isn’t just aesthetic — it’s a sign your muscles are getting what they need.
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Pre-workout performance
Taken 30–45 minutes before training, L-Arginine supports endurance and output. Whether you’re lifting, running, or doing high-intensity work, better blood flow means better performance sustained across the session.
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Recovery support
L-Arginine plays a role in protein synthesis and the removal of ammonia — a waste product that builds up during intense exercise. Supporting this process means your muscles can start rebuilding sooner.
Works well for
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People chasing a better pump
If you lift and want to feel more blood in the muscle during training, this is one of the most direct ways to support it.
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Endurance athletes
Better circulation means better oxygen delivery. Useful for runners, cyclists, and anyone whose performance depends on sustaining effort over time.
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Vegans and plant-based athletes
L-Arginine is naturally higher in animal proteins. If you eat mostly plants, supplementing fills that gap cleanly without any animal-derived ingredients.
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People who already stack supplements
Unflavoured and easy to mix — adds to your pre-workout, protein shake, or water without changing the taste or texture of anything.
Product highlights
- 100% pure L-Arginine — no fillers, no additives, no flavouring
- 3 g per serving
- 500 g tub / 166 servings
- Unflavoured — mixes into any drink or existing supplement
- Vegan-friendly
- Lab tested. UK made. Transparent label.
How to use
⚡ Pre-workout
Mix one level scoop (3 g) in 250 ml of water or add to your pre-workout shake. Take 30–45 minutes before training.
🔄 Rest days
Take once daily to support recovery and circulation. Unflavoured — won’t affect the taste of whatever you mix it into.
Food supplements should not be used as a substitute for a varied diet. Store in a cool, dry place, away from moisture.
166 servings. £26.99. Nothing in it that shouldn’t be.
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