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Researched by Helena DeMaria-Williams

Formula IngredientPeptide

Pentapeptide-48

INCI: Pentapeptide-48

Pentapeptide-48 is a synthetic peptide composed of five amino acids (threonine, arginine, serine, glutamic acid, and leucine), inspired by royalactin, a protein found in royal jelly. It works by interacting with human growth factor receptors (EGF and TGF-α) to stimulate extracellular matrix production, boost dermal cell proliferation, and activate proteasome activity to clear damaged proteins from skin cells.

Category

Peptide

Irritation Risk

Low

Skin Types

all skin types, ageing skin, uneven skin tone, hyperpigmentation, dull skin, oily, acne-prone

What does this do in a formula?

anti-ageing, firming, smoothing fine lines and wrinkles, evening skin tone, reducing hyperpigmentation, stimulating collagen production, promoting cell renewal, brightening

Is Pentapeptide-48 safe? Key considerations

Can Pentapeptide-48 cause irritation?

Low Risk

Rated low irritancy (score of 1) by cosmetic ingredient databases. At the recommended formulation concentration of 2–3%, it has been described as non-irritating and non-sensitising. No EU Annex II or III restrictions apply.

Does Pentapeptide-48 increase sun sensitivity?

No Risk

Peptides do not increase photosensitivity. No additional sun protection requirements specific to pentapeptide-48.

Is Pentapeptide-48 safe during pregnancy?

Safe

Synthetic peptides are generally considered safe during pregnancy. Multiple skincare sources confirm peptides are pregnancy-safe ingredients. As always, check the full product formulation for any co-ingredients (e.g. retinoids or high-concentration acids) that may not be pregnancy-appropriate.

How does Pentapeptide-48 work?

Pentapeptide-48 is a synthetic peptide composed of five amino acids (threonine, arginine, serine, glutamic acid, and leucine), inspired by royalactin, a protein found in royal jelly. It works by interacting with human growth factor receptors (EGF and TGF-α) to stimulate extracellular matrix production, boost dermal cell proliferation, and activate proteasome activity to clear damaged proteins from skin cells.

Individuals with MANUAL REVIEW: No documented contraindications; check full formulation for co-ingredients should review the considerations above before use.

Which products contain Pentapeptide-48?

Shop products that contain Pentapeptide-48