The most widely used peptides are Acetyl Hexapeptide-3 (Argireline) for expression-line relaxation, Palmitoyl Tripeptide-1 and Tetrapeptide-7 (Matrixyl 3000) for collagen stimulation, and Leuphasyl for synergistic smoothing. Your cosmetic chemist will confirm concentration limits and stability compatibility with the wax matrix you select.
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