Citrulline is used to support nitric oxide production, healthy blood flow, exercise performance, endurance, muscle recovery, and cardiovascular health.

L-citrulline is a non-essential amino acid naturally found in foods such as watermelon. In the body, it helps support nitric oxide production, which plays a role in blood vessel relaxation and circulation.

Citrulline supports nitric oxide production and blood flow, which may help improve nutrient and oxygen delivery during exercise. This can support endurance, stamina, and training performance.

Yes. Citrulline may support recovery after exercise by assisting blood flow and helping reduce exercise-related fatigue. It may be useful before or after training depending on your goal.

Yes. Citrulline supports healthy blood flow and nitric oxide production, which are important for cardiovascular and arterial health.

Each listed dose provides 1 g of citrulline. Higher daily amounts may be used depending on exercise, recovery, or cardiovascular support goals.

Adults may take 3–6 g daily before exercise, 6–8 g after exercise for muscle recovery, or 3–6 g daily for cardiovascular support, or as directed by a healthcare practitioner. Start with a lower dose and adjust as tolerated.

Citrulline can be mixed with water or another suitable beverage. Use caution when combining it with pre-workouts, nitric oxide formulas, blood pressure support products, or other performance supplements.

Citrulline may cause gastrointestinal upset at higher doses in some people. Starting with a lower dose and increasing gradually may help improve tolerance.

Citrulline has not been extensively tested during pregnancy or breastfeeding. Speak with your healthcare professional before use if you are pregnant, breastfeeding, taking medication, managing blood pressure, preparing for surgery, or using cardiovascular or performance-support supplements. Always read the label and follow the directions for use.