I-L-histidine hydrochloride, eyaziwa ngokuba yi-Histidine HCl, yindlela ye-hydrochloride ye-amino acid L-histidine.Ihlala isetyenziswa njengesongezelelo sokutya okanye njengento ekrwada kumayeza kunye nezongezo zokutya.I-L-histidine yi-amino acid ebalulekileyo, oku kuthetha ukuba ayinakwenziwa ngumzimba kwaye kufuneka ifunyenwe kwisidlo okanye izongezo.