DermatologyInvestigational

Matrixyl (Palmitoyl Pentapeptide-4)

Topical

Overview

Matrixyl is a lipopeptide composed of a pentapeptide sequence (Lys-Thr-Thr-Lys-Ser) attached to a palmitic acid moiety to enhance dermal penetration. It is proposed to stimulate fibroblast activity and upregulate synthesis of extracellular matrix components including collagen types I and III, fibronectin, and hyaluronic acid.

Mechanism of Action

The peptide serves as a matrikine fragment mimetic, signaling tissue remodeling pathways in aged or photodamaged skin..

Research Summary & Key Findings

In vitro fibroblast culture studies have documented increased collagen mRNA and protein expression following exposure to palmitoyl pentapeptide-4. Small-scale human trials conducted by cosmetic manufacturers have reported improvements in fine wrinkles and skin firmness after 12 weeks of topical use, though independent validation in peer-reviewed dermatology literature is sparse. Histological evidence of dermal matrix changes in human skin biopsies remains limited.

Clinical Status

Investigational

Matrixyl (Palmitoyl Pentapeptide-4) is in the investigational stage. While preclinical and early-phase data exist, it has not received regulatory approval for clinical use in the United States.

Administration Routes

Topical

Related Peptides in Dermatology

Afamelanotide (Scenesse)

FDA Approved

A synthetic 13-amino acid analog of alpha-melanocyte-stimulating hormone (alpha-MSH) with a substitution of norleucine a...

View details

Argireline (Acetyl Hexapeptide-8)

Investigational

Argireline is a synthetic six amino acid peptide (Ac-Glu-Glu-Met-Gln-Arg-Arg-NH2) designed to attenuate neurotransmitter...

View details

Matrixyl 3000

Investigational

Matrixyl 3000 is a proprietary combination of two lipopeptides: palmitoyl tripeptide-1 (Pal-GHK) and palmitoyl tetrapept...

View details

Matrixyl Synthe'6 (Palmitoyl Tripeptide-38)

Investigational

Palmitoyl tripeptide-38 is a synthetic lipopeptide designed to stimulate synthesis of six major constituents of the derm...

View details

Find a Provider

Find a verified provider who offers Matrixyl (Palmitoyl Pentapeptide-4) therapy in your area.

Browse Provider Map

Find a Pharmacy

Browse PCAB-accredited and FDA 503B-registered compounding pharmacies that supply Matrixyl (Palmitoyl Pentapeptide-4).

Pharmacy Directory

Join the Association

Access exclusive peptide protocols, provider resources, and community support.

List Your Practice

Disclaimer: This information is provided for educational and research purposes only. It is not intended as medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide therapy. The Peptide Association does not endorse or recommend any specific treatment protocol.