I would start by asking what the person wants from collagen. Skin, joints, hair, fasting, protein intake and recovery are different goals. The answer changes depending on the goal and health context.
萊拉.斯圖爾特 已回答問題
I would start by asking what the person wants from collagen. Skin, joints, hair, fasting, protein intake and recovery are different goals. The answer changes depending on the goal and health context.