✨ 7 peptides · sorted by evidence

Peptides for skin & hair.

Peptides studied for skin rejuvenation, collagen production, and hair growth.

Educational content only

Inclusion in this category means the peptide is being researched for this purpose — not that it's proven effective. Always consult your healthcare provider.

Strong Evidence Immune Support

Afamelanotide

Afamelanotide (formerly Melanotan 1, marketed as Scenesse) is a synthetic analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) that stimulates melanin p...

Read full profile
Strong Evidence Longevity & Anti-AgingImmune Support

Glutathione

Glutathione is a tripeptide (glutamate-cysteine-glycine) that is the body's most abundant and important intracellular antioxidant. It is produced naturally in e...

Read full profile
Emerging Recovery & HealingLongevity & Anti-Aging

GHK-Cu

GHK-Cu is a naturally occurring copper-binding tripeptide (Gly-His-Lys) first isolated from human plasma in 1973 by Loren Pickart. It is present in blood, saliv...

Read full profile
Emerging Sexual Health

Melanotan 2

Melanotan II is a synthetic cyclic peptide analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) that acts as a non-selective melanocortin receptor agoni...

Read full profile
Theoretical Recovery & Healing

AHK-Cu

AHK-Cu is a copper-binding tripeptide (Ala-His-Lys-Cu) structurally related to GHK-Cu, the well-studied copper peptide. It has been investigated for its ability...

Read full profile
Theoretical Gut & InflammationImmune Support

KPV

KPV is a naturally occurring tripeptide (Lysine-Proline-Valine) derived from the C-terminal end of alpha-melanocyte-stimulating hormone (alpha-MSH). It retains ...

Read full profile
Theoretical Longevity & Anti-Aging

SNAP-8

SNAP-8 is a synthetic octapeptide cosmetic ingredient designed to reduce the appearance of expression lines and wrinkles by modulating neuromuscular signal tran...

Read full profile
Clinician conversation

Questions to ask your doctor about skin & hair.

  1. 01 What peptides, if any, have evidence for my specific skin & hair goals?
  2. 02 What lab work should I have done before and during any peptide therapy?
  3. 03 How would this interact with my current medications or health conditions?
  4. 04 What's a realistic timeline for results based on the current research?
Stay in the loop

Skin & Hair research, bias-checked.

Weekly peptide summaries — clinician-reviewed and free of hype.

Subscribe free