L-Citrulline – Effects, Benefits, and Citrulline Powder from MST Nutrition

What Is L-Citrulline?

L-citrulline is a non-proteinogenic amino acid found in large quantities in watermelons. In the human body, it is converted to L-arginine and then to nitric oxide (NO) – a gas responsible for widening blood vessels. This mechanism is crucial for blood flow, oxygen supply, performance, and the characteristic pump effect during strength training.

Unlike arginine, L-citrulline is absorbed more consistently, remains in the bloodstream longer, and has a demonstrably stronger physiological effect [1].

Effects of L-Citrulline

The scientifically proven benefits of L-citrulline include:

Improved blood flow through increased NO production
Enhanced muscle pump during strength training
Increased endurance under exertion
Better nutrient supply to the muscles
Reduced muscle soreness and faster recovery
These effects apply not only in sports but also to people with an amino acid deficiency, for whom targeted supplementation can significantly improve the effects of amino acids [2].

Citrulline Effects in Men

In addition to its use in sports, citrulline offers significant benefits for men's health:

Improved erectile function through increased blood flow
Support for testosterone metabolism (indirectly through improved nutrient utilization)
Combination with arginine for a synergistic effect on potency
Alternative to synthetic erectile dysfunction medications
Studies show that daily intake of L-citrulline can lead to significant improvements in men with mild erectile dysfunction [3].

Citrulline Malate – Effective Combination with Malate

Citrulline malate is a combination of L-citrulline and malate (malic acid). This form supports not only NO production but also energy metabolism through the citric acid cycle.

Benefits of Citrulline Malate:
Greater energy availability during training
Improved training performance and fatigue resistance
Ideal for strength and endurance sports
Longer-lasting and more sustainable effects than pure citrulline [4]
Citrulline + Arginine – Enhanced Effect Through Combination

L-Citrulline and L-Arginine work through the same physiological pathway: they increase NO levels in the blood. While arginine works quickly, citrulline ensures sustained NO production.

Benefits of the combination:

Faster and longer-lasting vasodilation
Synergistic effect for maximum impact
Especially popular in pre- and intra-workout supplements
This combination is also specifically used for libido and men's health [5].

Citrulline powder - use and dosage

Goal Recommended daily dose
Muscle pump & pre-workout 6–8 g citrulline malate before training
Men's health & libido 2–3 g daily
Endurance & recovery 4–6 g 30–45 min. before exertion
Note: It is best taken on an empty stomach or with easily digestible carbohydrates such as Cluster Dextrin for improved absorption.

MST Nutrition - Buy high-quality citrulline powder in Germany

Anyone looking to buy citrulline powder should pay attention to quality, dosage, and origin. MST Nutrition, a manufacturer from Germany, offers high-performance formulas for athletes and health-conscious men:

Pure L-citrulline powder - without flavors, fillers, or colorings
Citrulline malate powder in an optimal 2:1 ratio
Combination products with arginine for maximum NO effect
Produced to the highest standards - Made in Germany
Ideal for amino acid deficiencies, improving performance, libido, and recovery
All MST products are based on tested raw materials and are tailored to the daily needs of competitive athletes and health-conscious people.

Conclusion

L-citrulline is a versatile, well-researched, highly effective amino acid with benefits for training, health, and male vitality. Whether as citrulline powder, in the form of citrulline malate, or as part of a pre-workout combination, its effects are measurable and noticeable.

Anyone looking to buy L-citrulline will find a range of scientifically supported, high-quality products at MST Nutrition Germany - with no compromises.

Sources

Bailey SJ et al. (2015). Influence of L-citrulline supplementation on oxygen uptake kinetics and high-intensity exercise performance in humans. Eur J Appl Physiol. [PubMed: 25648140]
Sureda A et al. (2010). L-citrulline-malate influence over branched chain amino acid utilization during exercise. Eur J Appl Physiol. [PubMed: 20039120]
Cormio L et al. (2011). Oral L-citrulline supplementation improves erection hardness in men with mild erectile dysfunction. Urology. [PubMed: 21942056]
Wax B et al. (2015). Effects of L-citrulline supplementation on exercise performance in humans: a review of the current literature. J Strength Cond Res. [PubMed: 26388782]
González-Hernández MA et al. (2009). Arginine and citrulline supplementation in sports and health: synergies and mechanisms. Nutrients.