What it is
Dipeptide-2 is a short synthetic peptide composed of valine and tryptophan. In cosmetic formulas it is included as a skin-conditioning agent and is often paired with other peptides in serums and sunscreens marketed for a smoothing or supportive feel. It is water-soluble and used at low concentrations.
Safety & warnings
Short synthetic peptides used at low levels are generally well tolerated and are not associated with significant irritation or sensitization in typical cosmetic use. It is not an oil and is not considered comedogenic.
Origin & sourcing
Synthetic, produced by peptide synthesis rather than extracted from a natural source.
Questions everyone asks
What is Dipeptide-2?
It is a synthetic peptide made of two amino acids, valine and tryptophan, used as a skin-conditioning ingredient in cosmetics.
Does Dipeptide-2 provide sun protection?
No. It is not a UV filter; it is a conditioning peptide added alongside the actual sunscreen filters in a formula.