While its benefits for the skin are not extensively studied, L-citrulline contributes to skin health through its impact on overall body function. Here are some potential benefits of L-citrulline that support skin health:

1. Enhanced blood circulation: L-citrulline is involved in the production of nitric oxide (NO), which helps relax and widen blood vessels, leading to improved blood flow. Enhanced circulation can potentially deliver more oxygen and nutrients to the skin cells, promoting a healthy complexion and supporting skin repair processes.
2. Antioxidant activity: L-citrulline may possess antioxidant properties, helping to neutralise harmful free radicals in the body. Free radicals can contribute to oxidative stress, which may accelerate skin aging and damage. By reducing oxidative stress, L-citrulline supports skin health and minimise the appearance of wrinkles and fine lines.
3. Promotes collagen synthesis: Collagen is a vital protein that provides structural support and elasticity to the skin. L-citrulline plays a role in the urea cycle, which is essential for the synthesis of collagen. By supporting collagen production, L-citrulline helps maintain skin integrity and firmness.
4. Detoxification support: The liver plays a crucial role in detoxifying the body by eliminating toxins and waste products. L-citrulline is involved in the urea cycle, which helps remove excess ammonia from the body. By aiding in detoxification, L-citrulline contributes to healthier skin by reducing the burden on the liver and other detoxification pathways.