My Boyfriend Said He Is Going On A Collagen Diet

United States
May 22, 2016 7:34am CST
My boyfriend is always on some health tip. Now he wants to improve his skin from the inside out. He said he will be taking Proline, L-lysine, and Vitamin C. Personally, I take a supplement with Biotin for healthy hair and skin (Hairfinity).
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1 response
hereandthere
@hereandthere (45645)
• Philippines
22 May 16
what does proline and l-lysine do?
Acemat
@LikeAdams0921 (130)
• United States
22 May 16
Amino acids are anti-aging agents.