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Refrigeration often extends shelf life even when not required

By activating these fibroblasts, copper peptides help increase the production of both collagen and elastin, making the skin more elastic, firm, and youthful-looking

Xu B, Yang M, Li Z, Zhang Y, Jiang Z, Guan S, Jiang D

Comparative investigations may evaluate formulation-specific variables, but the underlying peptide sequence and molecular properties remain unchanged

On the day of the assay, serial dilutions (7-fold dilutions, 7 concentrations per compound and one well containing only assay buffer) of test compounds were performed in duplicate in assay buffer to appropriate concentrations in 96-well plates (Greiner, U-shape #GR-650201) using a Biomek i7 liquid handler

Reduces fine lines and wrinkles Clinical studies show a visible reduction in wrinkle depth and roughness with consistent GHK-Cu use