Pentapeptide-18
Cosmetic ingredient (Leuphasyl) — not an FDA-approved drug.
What it's for
Cosmetic ingredient (Leuphasyl) — not an FDA-approved drug.
What it's for
Pentapeptide-18 is a lab-made peptide ingredient used in topical cosmetic formulations (Leuphasyl).
What it does for the body
In cosmetics it is used for appearance-oriented skin goals such as expression-line appearance. It is not FDA-approved to diagnose, treat, cure, or prevent disease. People often hear about it through clinics, forums, or news — this guide sticks to what published research and regulators actually support.
What it targets
A pentapeptide marketed to gently adjust the chemical messages nerves send cascades related to expression muscles, aiming to soften line appearance. Think skincare, not a prescription disease drug: the goal is how skin looks, more like softening a crease in fabric than curing an illness.
Research context
Bottom line for readers: Pentapeptide-18 belongs in the cosmetic/topical conversation. That can still be interesting — it is just a different evidence lane than prescription drugs.
Studied for (literature interest)
- Skin research interest (educational tag)
Cautions (educational)
- Educational only — not medical advice.
- DrPep does not offer medical consultations, dosing guidance, suppliers, or peptide sales.
Citations / starters
- FDA search: Pentapeptide-18 — FDA.gov search
- ClinicalTrials.gov search: Pentapeptide-18 — U.S. clinical trials registry
- Drugs@FDA search: Pentapeptide-18 — FDA drug database (if approved)
- PubMed search: Pentapeptide-18 — NCBI PubMed
- PubMed Central search: Pentapeptide-18 — NCBI PMC