Lysine hydrochloride provides a highly absorbable form of the essential amino acid lysine. The body uses lysine to build and repair tissues, form collagen, and regulate calcium uptake. The hydrochloride salt improves solubility, making this form easy for the body to use.
This supplement helps maintain adequate lysine levels when dietary intake falls short. People take it to support bone density and skin firmness. Individual results with these applications vary.
Take lysine hydrochloride on an empty stomach. Absorption is most efficient when you separate it from meals. The powder, capsule, or tablet forms all work. High doses can upset the stomach. Anyone with kidney problems, or who is pregnant or nursing, should check with a clinician before starting. Since lysine influences calcium handling, exercise caution if you take drugs that alter calcium levels.