L-Citrulline is a naturally occurring, non-essential amino acid named after its discovery in watermelon. It plays a key role in the body’s urea cycle—helping to process and rid excess nitrogen—and is also produced as part of nitric oxide synthesis. When ingested, L-Citrulline converts into L-Arginine, which fuels nitric oxide production to relax blood vessels and enhance circulation. ... https://www.uniprismmarketresearch.com/verticals/chemicals-materials/l-citrulline