What it is
Pentapeptide-3 is a short peptide composed of five amino acid units, manufactured by peptide synthesis for cosmetic use. It is included in formulas as a skin-conditioning agent intended to support a smooth, well-maintained skin surface. In sunscreens it appears as a supportive conditioning ingredient rather than as a sun-protective component.
Safety & warnings
Short synthetic peptides of this kind are generally well tolerated at the low concentrations typical in cosmetics and are not recognized fragrance allergens or notable comedogens.
Origin & sourcing
Synthetic; produced by chemical peptide synthesis to a defined five-amino-acid sequence.
Questions everyone asks
What is Pentapeptide-3?
It is a synthetic peptide made of five amino acids, used as a skin-conditioning ingredient in cosmetic formulas.
Does Pentapeptide-3 provide sun protection?
No. It is a conditioning peptide and does not function as a UV filter.