L-Arginine hydrochloride

L-Arginine hydrochloride (CAS 1119-34-2) is the hydrochloride salt form of the semi-essential amino acid L-Arginine, commonly referenced as L-ARG HCL, H-ARG-OH HCL, or simply ARG HCL. It carries no assigned E-code and is distinct from free-base L-Arginine in its enhanced water solubility and handling stability.

In personal care formulations, it functions as a hair and skin conditioner by neutralising acidic components and reinforcing the hair's cuticle structure, while its buffering capacity makes it a reliable pH-regulating agent in cosmetic and pharmaceutical systems. In food and nutraceutical applications, it acts as a humectant and antioxidant, helping retain moisture and limit oxidative degradation in finished products.

L-Arginine hydrochloride is available in pharmaceutical grade (Ph.Eur., USP) and food grade (FCC) as a white crystalline powder. It is fully REACH-registered and supplied under HS code 29252000, typically in 25 kg bags or fibre drums to meet standard procurement requirements.