USN L-Citrulline Malate – Pure 2:1 Ratio Pump Powder
USN L-Citrulline Malate is a single-ingredient amino acid powder built around one job: getting more blood to your muscles during training. Each 4g scoop delivers 4,000mg of L-citrulline malate at a 2:1 ratio, giving you 2,480mg of active L-citrulline per serve to support nitric oxide production and blood flow where it counts.
Key Benefits
- Better muscle pumps — L-citrulline stimulates nitric oxide production, which relaxes and expands blood vessels so more blood reaches working muscles.
- Improved nutrient delivery — Greater blood flow means oxygen and nutrients get to your muscles more efficiently during training, supporting output and endurance.
- ATP support via malic acid — The malate component is an intermediate in the citric acid cycle, the process your body uses to produce ATP for muscle contraction. Exercise depletes malate, so supplementing helps keep that pathway running.
- Reduced fatigue — By supporting both nitric oxide levels and ATP production, L-citrulline malate may help you push harder for longer before fatigue sets in.
- No fillers, no extras — One ingredient: L-citrulline malate (2:1). Nothing else added.
How It Works in Training
L-citrulline is not coded by human DNA the way standard amino acids are, which means your body produces only small amounts and dietary sources (like watermelon rind) provide very little. Supplementing before training gives your body enough to meaningfully raise nitric oxide levels. The malate component adds a second angle: malic acid is a direct player in ATP production, and since exercise depletes it, taking citrulline malate rather than plain citrulline supports both vascular and energy-production pathways at once.
Directions for Use
Take 1 rounded scoop (4g) before workouts. Maintain adequate hydration throughout the day (8–10 large glasses of water). Do not exceed the recommended daily intake. Consult your physician before use if you are pregnant, lactating, under 18, or have a medical condition. High levels of free-form amino acids may cause gastric discomfort; reduce dosage or discontinue if this occurs.
Suitable For
Anyone looking to support workout performance, muscle pumps, and training endurance. This is a pure amino acid powder with no stimulants, making it a good option for those who want pump and blood flow support without caffeine. Check allergen information below if you have food sensitivities.
Allergen Info
No common allergens added. Manufactured in a facility that processes or may contain: cow's milk, soy, wheat, oats (gluten), fish, and peanuts.
