Matrixyl (Palmitoyl Pentapeptide-4)

Also known as: Palmitoyl-KTTKS

Overview

Matrixyl is a matrikine peptide that stimulates fibroblasts to produce collagen, elastin, and GAGs. The palmitoyl chain increases skin penetration, supporting anti-wrinkle, elasticity, and hydration benefits as a gentler alternative to retinoids.

Benefits

- Wrinkle reduction

- Enhanced firmness

- Hydration boost

- Smoother texture

- More even tone

Consider This Peptide If You Want To

- Reduce fine lines and wrinkles

- Improve firmness, elasticity, and hydration

Dosage & Administration

Dosage Guidelines

Recommended Dosage

• Amount:2 mg

• Frequency:daily

• Duration:8 weeks

• Rest Period:

• Time of Day:morning

• Ingestion:topical

Apply to clean, dry skin before other products. Best results occur after 4-8 weeks of consistent use. Most effective when paired with complementary ingredients like hyaluronic acid.

Administration Routes:Topical Application

Research Findings on Dosage:

Topical Application: ● Commonly Reported Dosage: 2% to 5% in creams or serums ● Duration: Apply twice daily, morning and evening Administration Notes: ● Apply to clean, dry skin before applying moisturizer or sunscreen. ● For optimal results, users commonly pair Matrixyl with hyaluronic acid to increase skin hydration and peptide delivery. ● Anecdotal reports suggest stacking Matrixyl with vitamin C serums in the morning and retinol at night, allowing 1–2 minutes between layers for full absorption. ● Users have noted the most visible improvements after 4 to 8 weeks of consistent use.

Mechanism of Action

Mechanism of Action

How this peptide works in the body

Collagen and ECM Stimulation:

Matrixyl binds to specific fibroblast receptors and mimics the effects of natural matricins released during tissue injury. This activates signaling cascades that upregulate the synthesis of collagen types I, III, and IV, fibronectin, and hyaluronic acid, all of which contribute to dermal thickness, elasticity, and hydration. Inhibition of Glycosaminoglycan Overproduction:

By restoring extracellular matrix balance, Matrixyl regulates the synthesis of glycosaminoglycans (GAGs) and prevents the accumulation of dysfunctional or fragmented matrix components, which are associated with skin laxity and roughness. Anti-Inflammatory Effects:

Matrixyl decreases the production of pro-inflammatory cytokines such as IL-6 and TNF-α, which are elevated in chronically aged or UV-damaged skin. This contributes to reduced redness, improved barrier integrity, and a more even skin tone. Promotion of Epidermal Thickening:

Matrixyl stimulates the proliferation of keratinocytes and enhances communication between the dermis and epidermis. This results in an increase in epidermal turnover, improved resilience, and a visibly firmer, more youthful skin texture.

Consider Stacking With

- Hyaluronic acid

- Vitamin C (L-ascorbic acid)

- Retinol or bakuchiol

- Niacinamide

Side Effects & Cautions

Common Side Effects

- Mild irritation/tingling, especially with other actives

Cautions

- Patch test; avoid mixing with low-pH acids that may destabilize peptide; consult dermatologist if on prescriptions

Rare Side Effects

- Allergic reactions to peptide or carriers

Research & References

Research Highlights

● Collagen Synthesis (2005): Matrixyl significantly increased collagen production in human photoaged skin tissue. ● Wrinkle Reduction (2004): A 3% Matrixyl formulation applied twice daily reduced wrinkle volume and depth after 8–12 weeks. ● Skin Elasticity (2013): Use of Matrixyl improved skin firmness and hydration in subjects aged 45 and over.

References

Robinson LR et al. "Topical palmitoyl pentapeptide provides improvement in photoaged human facial skin." Int J Cosmet Sci. 2005;27(3):155–160. PMID: 18492135

Lintner K, Peschard O. "Biologically active peptides: from a laboratory bench curiosity to a functional skin care product." Int J Cosmet Sci. 2000;22(3):207–218. PMID: 18503452

Hamley IW. "Collagen stimulating effect of peptide amphiphile C16-KTTKS on human fibroblasts." Mol Pharm.2013;10(3):1063–1069. PMID: 23362874