L-Cysteine is a nonessential amino acid that assists in the synthesis of proteins. L-Cysteine HCl (hydrochloride) is Cysteine that is bound to Hydrochloride to assist in absorption.* L-Cysteine HCl is a nonessential amino acid that may help support digestion, lung health, and immune function.* It has natural anti-inflammatory properties and may aid in maintaining healthy glucose levels in already healthy individual when used in conjunction with a healthy diet and exercise.* L-Cysteine HCl may also work to promote a calm mood and an overall feeling of well-being.** These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.