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GHK-Cu has been shown in cell culture to increase dermal papilla cell proliferation and protect these cells from programmed cell death (apoptosis), shifting the Bcl-2/Bax survival balance in favor of cell protection
doi:10.1371/journal.pone.0135268
Second, proline substitutions at positions 25, 28, and 29 reduce the tendency to form beta-sheet structures that lead to aggregation
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