pepsin-solubilized collagen

• 胶原蛋白

pepsin-solubilized collagen的用法和样例：

例句

1. Skin should contain elastin as well as collagen.
   应包含皮肤弹性，以及胶原蛋白。
2. Excess collagen is deposited causing thickening and hardening.
   过量的胶原蛋白沉积下来，引起增厚和硬化。