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Creating Multi-Functional Serums Develop specialized serums by incorporating GHK-Cu into formulations targeting specific concerns: - Anti-aging serum with GHK-Cu, retinol, and vitamin C - Hydrating serum with GHK-Cu, hyaluronic acid, and glycerin - Brightening serum with GHK-Cu, niacinamide, and alpha-arbutin Always research ingredient interactions and perform stability tests when creating complex formulations

10.1016/j.lfs.2010.09.006 53 MiltonJ

[13] There is no established link between topical copper peptide use at cosmetic concentrations and systemic copper toxicity

Futaki S Cellular Internalization and Distribution of Arginine-Rich Peptides as a Function of Extracellular Peptide Concentration, Serum, and Plasma Membrane Associated Proteoglycans