Skin & Hair
Explore peptides studied for skin firmness, fine lines, hair growth, skin colour and wound healing. Some are used in skincare or specialist medicine; others are still experimental.
Why people explore skin & hair. Explore peptides studied for skin firmness, fine lines, hair growth, skin colour and wound healing. Some are used in skincare or specialist medicine; others are still experimental.
Peptides linked with skin, hair & renewal
From skincare ingredients to specialist medicines, these peptides are studied for different reasons: smoother-looking skin, hair growth, wound healing or changes in skin colour. Open a card to see what has been studied in people and where the research is still early.

GHK-Cu
A copper peptide studied for skin repair, wound healing and hair growth. Researchers also study its effects on collagen, which helps keep skin firm.

KPV
An experimental peptide studied for irritated skin and the skin barrier — the outer layer that helps keep moisture in and irritants out. Research is still mainly in laboratories and animals.

Afamelanotide
A specialist medicine for EPP, a rare condition that makes light painful. It increases the skin's natural colour to help protect against painful light reactions — an effect called photoprotection.

Melanotan II
A peptide studied for tanning: it increases the natural colour in the skin, making it darker. It is not an approved medicine, and long-term safety is still unclear.

Palmitoyl pentapeptide-4
A peptide applied to the skin, studied for fine lines, wrinkles and collagen, which helps keep skin firm.

Acetyl hexapeptide-8
A skincare peptide studied for expression lines, the wrinkles that form when we smile, frown or squint. Also called Argireline.
