Ingredient Science

L-Citrulline and Nitric Oxide: Benefits for Circulation & Focus

By Memocept Research Team · Reviewed by Dr. Nathan Brooks, M.D. · Updated June 2026

If L-Arginine starts the nitric oxide engine, L-Citrulline keeps it running. It's a key part of the Memocept formula — here's why two forms of it are included.

How L-Citrulline Works

L-Citrulline is an amino acid the body converts into L-Arginine, which then fuels nitric oxide production. Interestingly, supplementing citrulline can raise arginine levels even more effectively than taking arginine directly, helping promote healthy, sustained blood flow (PMID 28336910).

Two Forms for Longer-Lasting Support

Memocept includes both L-Citrulline HCL and L-Citrulline Malate. The malate form pairs citrulline with malic acid to support energy production and help extend nitric oxide's vasodilation effect — meaning longer-lasting circulation support.

Circulation and Cognition

By sustaining nitric oxide, L-Citrulline helps maintain the blood flow that delivers oxygen and nutrients to the brain — supporting focus and clearer thinking. Learn the bigger picture in our nitric oxide guide.

L-Citrulline in Memocept

Alongside L-Arginine and Beta-Alanine, the two citrulline forms round out the circulation-focused blend — see the full ingredients list and the current Memocept sale on the Memocept official website.

Like L-Arginine, citrulline can lower blood pressure — consult your doctor if you take related medication.

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