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A palmitoyl-peptide (tripeptide-38 / pentapeptide-4) studied in cosmetic research on collagen-support pathways.
Evidence brief
Matrixyl is a cosmetic ingredient built on pal-KTTKS (palmitoyl pentapeptide-3/-4), a fragment of collagen (a matrikine) attached to a fatty acid to help it cross the skin.
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10mg (3 vendors)
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Matrixyl · all tracked vendors · all tracked peptide listings, including out-of-stock products. Prices and stock reflect the last check. Non-comparable products do not enter market rankings. Trust scores measure published evidence, not product safety.
Matrixyl is a cosmetic ingredient built on pal-KTTKS (palmitoyl pentapeptide-3/-4), a fragment of collagen (a matrikine) attached to a fatty acid to help it cross the skin.
Source-linked reference figures with the population and study context alongside each amount. Study arms are not a starting dose, titration schedule, or personal treatment plan. Label records refer to the named approved medicine, not vendor products.
Dose administered in a preclinical animal study (mouse, UV-irradiated bc_nu hairless mice. The STRENGTH of a formulation of the trade-name cosmetic ingredient Matrixyl used as the study's positive control; not a concentration of a specified peptide)
10 mg/mL formulation
mouse · UV-irradiated bc_nu hairless mice. The STRENGTH of a formulation of the trade-name cosmetic ingredient Matrixyl used as the study's positive control; not a concentration of a specified peptide · preclinical animal study
published as the STRENGTH of the preparation used (a concentration), not an amount given — pepmg reports it as published and does not convert it into an amount
Research use only — this reports what an FDA label or a peer-reviewed study published, tied to its species and study context. It is not medical advice, not a recommendation to use, and no dose here is generated by pepmg. Any dosing decision is for a qualified professional. Animal-study amounts do not establish a human dose.
All products listed are sold by third-party vendors for laboratory and research use only (RUO). Where an FDA label or a peer-reviewed study has published a dose, pepmg reports it with the source named, because that is safer than guessing. It is a report, not medical advice and not a recommendation to use anything. pepmg sells nothing and ships nothing. Listings are price-tracking data, not endorsements.
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