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Additional reported effects include antioxidant activity, genomic regulatory effects, and immune modulation [1]

Indeed there are some studies showing these outcomes in humans (PMIDs: 30681787 & 34491424) Collagen contains a high proportion of glycine (33%), proline (~10%), & hydroxyproline (~10%) which may provide substrate for connective tissue synthesis However, one of the best protein metabolism labs in the world has conducted 2 studies demonstrating that collagen & collagen peptide supplementation does NOT increase connective tissue synthesis (PMID: 39086044 & 37202878)

What to Expect Individual responses vary depending on age, skin condition, and overall health

10.1016/j.meatsci.2011.01.005 222 RosenzweigC.MbowC.BarioniL

Consistency leads to noticeable improvements in energy, mood, and immunity within a few weeks