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6A), indicating those cis-elements may participate in CBS gene regulation
Quanjer, P
2221, National Institutes of Health
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)
If the product contains this ingredient, the label lists it as either copper peptides, GHK-Cu, or copper tripeptide-1
They are generally more pronounced and longer-lasting than those seen with short-acting peptides due to its prolonged half-life
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