Assertion: collagen's acid | /r/HasProperty | vitamin c
Facets:
Source sentences:
text: Why you ask... proline hydroxylation requires ascorbic acid (vitamin C).
text: For example, the activity of both prolyl hydroxylases requires an essential cofactor, ascorbic acid (vitamin C).
text: In a study on skin aging and 5,000 mg hydrolyzed collagen supplement with soluble hydrolyzed collagen type I obtained from the cartilage of fish, which contains low-molecular-weight hyaluronic acid, as well as several vitamins and minerals – citric acid, pyridoxine hydrochloride (vitamin B6), extract of black pepper (Piper nigrum), copper, borage seed (Borago officinalis) oil, glycerol, soy lecithin, biotin soybean polysaccharide, malic acid, ascorbic acid (vitamin C), hyaluronic acid, D-α-tocopherol (vitamin E), sucralose, N-acetylglucosamine, Stevia, zinc, and biotin.