Peptides

Dipeptide-5

INCI: DIPEPTIDE-5

Reviewed by Rosie · Last updated 2 Jun 2026

A peptide fragment that supports skin conditioning and structural integrity

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Barrier repair, Hydration

Usage Frequency

Daily

What Is Dipeptide-5?

Dipeptide-5 is a short-chain peptide — a molecule made of two amino acids linked together. In skincare formulations, it functions as a skin conditioning agent, helping to improve the texture and appearance of the skin barrier.

Peptides in general are valued in cosmetics because they can interact with skin cells in ways that support hydration and skin firmness, though the specific mechanisms vary depending on the peptide structure.

How It Works

Dipeptide-5 acts as a humectant and conditioning agent, meaning it helps attract and bind water to the skin. This improves hydration and can make the skin feel smoother and more supple.

The peptide may also interact with skin cells in ways that support natural moisture-retention mechanisms, though the exact cellular pathways are not extensively characterised in published research.

Clinical Evidence & References

Published clinical research specifically on dipeptide-5 is limited. Most evidence for peptide ingredients in skincare comes from broader studies on peptide function in skin conditioning and barrier support.

While peptides are generally recognised as beneficial for skin hydration and texture, individual peptides vary in their efficacy. Dipeptide-5 appears to be used primarily for its skin-conditioning properties rather than targeted anti-ageing effects, though more specific clinical data would help clarify its benefits.

How to Use

Dipeptide-5 is typically found in serums, moisturisers and hydrating products. It works well alongside other hydrating ingredients like hyaluronic acid and glycerin. Use as directed on the product label, usually once or twice daily depending on formulation.

Safety & Precautions

Dipeptide-5 is generally well-tolerated and considered safe for use in skincare. No significant safety concerns have been reported, though those with sensitivity to peptides should patch-test first.

Frequently Asked Questions

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