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Therefore, although GHK-Cu has become a widely discussed anti-aging skincare ingredient, it currently remains primarily positioned in the cosmetic field rather than as an FDA-approved pharmaceutical drug
Recent research compared 270 types of collagen peptides derived from tilapia skin and concluded that the Pro residue located at the penultimate position of the C-terminal may have a greater impact on ACE inhibitory activity than the Pro at the third position from the end [135]
Immunocomplexes washed with lysis buffer three times were subjected to immunoblot analyses with corresponding antibodies as described previously 27
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