What are peptides in skincare?

Peptides are short chains of amino acids. In your skin, longer chains of amino acids form proteins such as collagen and elastin, which keep skin looking firm and smooth.

In skincare, peptides act like messengers. Different peptides send different signals: some support the look of firmness, some soften the look of expression lines, and some help skin feel conditioned and resilient.

Because they are gentle, peptides suit most skin types and pair well with other actives. They work gradually, so consistency matters more than strength: apply them morning and night for best results.

POISELLE serums each combine several peptides, such as GHK-Cu, Matrixyl® 3000 and Argireline®, so one step covers more than one goal.