N-Dimethyl Glycine HCL or N-N-Dimethylglycine hydrochloride (DMG HCl) is a hydrochloride salt of N,N-dimethylglycine (DMG), a naturally occurring compound that is a derivative of the amino acid glycine.
N,N-Dimethylglycine hydrochloride is used as a nutrient supplement, with some people using it for athletic performance, immune function, and other purposes.