Here, we conducted a double-blind, randomized, and placebo-controlled oral administration study on the effects of a collagen peptide (CPNS) containing dipeptides, including Gly-Pro and Pro-Hyp, on skin wrinkling, desquamation, elasticity, and hydration
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Next, because peptide drugs are susceptible to proteolytic cleavage, we tested this series in a trypsin protease assay
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Cardiovascular Effects: The peptide affects blood pressure through nitric oxide modulation