Peptides

Hexapeptide-1

INCI: HEXAPEPTIDE-1

Reviewed by Daisy · Last updated 2 Jun 2026

A peptide that supports skin conditioning and works alongside retinol in anti-ageing formulations

Best For Skin Types

All, Mature

Addresses

Fine lines, Loss of elasticity

Effective Concentrations

1%

Usage Frequency

Daily

What Is Hexapeptide-1?

Hexapeptide-1 is a synthetic peptide — a short chain of amino acids — used in skincare formulations as a skin conditioning agent. Peptides are popular in cosmetics because they are small enough to penetrate the skin's outer layers and may interact with skin cells to support various functions.

This ingredient is often combined with other actives in anti-ageing products. It appears in formulations designed to address signs of ageing, typically at concentrations around 1 percent.

How It Works

Hexapeptide-1 functions as a skin conditioning agent, meaning it helps improve the skin's texture and hydration status. When applied topically, peptides can penetrate the stratum corneum (the skin's outermost layer) and may stimulate skin cells or support natural repair processes.

In formulations combining hexapeptide-1 with retinol, the peptide is thought to complement retinol's collagen-stimulating effects, though the exact mechanism of interaction between these ingredients requires further investigation.

Clinical Evidence & References

Limited research specifically examines hexapeptide-1 in isolation. Available studies have explored its use in combination formulations rather than as a standalone ingredient. One study investigated a retinol essence combined with acetyl hexapeptide-1 in a Chinese population, suggesting potential benefit for photoaged skin when paired with retinol.

Evidence for hexapeptide-1's independent contribution to anti-ageing effects remains unclear. More targeted research would help establish its specific benefits and optimal use concentration.

How to Use

Hexapeptide-1 is typically found in essences, serums, and creams as part of multi-ingredient anti-ageing formulations. When using products containing this peptide alongside retinol, follow the product instructions carefully, as retinol frequency and concentration depend on individual tolerance and skin type. Apply to clean, dry skin before heavier moisturisers.

Safety & Precautions

Hexapeptide-1 is generally well-tolerated in skincare products. As a synthetic peptide, it poses minimal irritation risk for most skin types, though those with sensitive skin should patch test first, particularly if the formula also contains other actives like retinol.

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