The scientific truth about collagen supplements

Your body uses collagen to give your skin strength and elasticity, so supplements of this protein seem to make sense to reduce wrinkles. But columnist Alice Klein finds it isn’t this simple

口服胶原蛋白补充剂经消化后只是普通氨基酸，无法定向修复皮肤胶原，现有试验的除皱效果微小且多有行业资助背景。作者认为更可靠的替代方案是运动、防晒、维A酸及受控皮肤损伤类疗法。