维生素B_2(核黄素)是体内氧化酶系统不可缺少的辅酶。维生素B_6(吡哆素)主要是以吡哆醛、吡哆醇和吡哆胺三种天然形式存在,以辅酶的形式参与人体内多种物质和能量代谢。人体缺乏维生素B_2和维生素B_6后,许多代谢酶的活性都会降低,影响体内物质代谢的顺利进行,导致皮肤、黏膜受损。维生素B_2缺乏症早期表现为虚弱、疲劳、口腔疼痛、眼睛灼烧感和发痒,严重时引起皮肤、黏膜损 Vitamin B 2 (riboflavin) is an indispensable coenzyme in the body’s oxidase system. Vitamin B_6 (pyridoxine) mainly exists in three natural forms of pyridoxal, pyridoxine and pyridoxamine, and participates in various substances and energy metabolism in the human body as a coenzyme. The body’s lack of vitamin B_2 and vitamin B_6, many metabolic enzymes will reduce the activity, affecting the smooth progress of the body’s metabolism, leading to skin and mucosal damage. Early manifestations of vitamin B_2 deficiency are weakness, fatigue, oral pain, burning sensation and itchy eyes, severe skin and mucous membrane damage