Can you use AHAs (glycolic / lactic acid) with Matrixyl?

Q: Can you use AHAs (glycolic / lactic acid) with Matrixyl?

Use with caution. The pH concern with peptides and acids is often repeated but not well-established; separate if your skin prefers.

Use with cautionEvidence · Lore / unproven

The pH concern with peptides and acids is often repeated but not well-established; separate if your skin prefers.

Lore / unproven: Widely repeated but not well-established. We flag it rather than present it as fact.

AHAs (glycolic / lactic acid)

INCI · Glycolic Acid

An alpha-hydroxy acid that exfoliates for a smoother-looking surface; usually evening.

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Matrixyl

INCI · Palmitoyl Pentapeptide-4

A peptide used for the look of smoother, more supple skin.

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Cosmetic layering guidance for the look and feel of your routine — not medical advice. Patch-test new combinations.

This site provides neutral scientific reference and sells only products lawful in your region. Nothing here is medical advice, a recommendation, or an offer to supply unapproved medicines. No dosing or administration is published for research compounds. Cosmetic peptides per Regulation (EC) 1223/2009. Unapproved injectable peptides are neither sold nor advertised in the EU (Directive 2001/83/EC, Title VIII). © 2026 Vallydia SL — Registered in Spain.