Peptides

Hexapeptide-3

INCI: HEXAPEPTIDE-3

Reviewed by Rosie · Last updated 14 Aug 2026

A peptide that may help improve skin texture and hydration over time

Best For Skin Types

All, Dry, Mature

Addresses

Fine lines, Dryness, Hydration

Usage Frequency

Daily

What Is Hexapeptide-3?

Hexapeptide-3 is a short chain peptide—a fragment of amino acids—designed to support skin conditioning. Peptides are naturally occurring in the body and play structural roles in skin, so cosmetic versions are formulated to mimic or support these functions when applied topically.

This ingredient is primarily categorised as a skin conditioner, meaning it works to improve the appearance and feel of the skin surface rather than penetrating deeply into living layers.

How It Works

Hexapeptide-3 functions primarily as a humectant and skin conditioning agent. It helps draw moisture into the skin and supports the skin's natural barrier function, which in turn can improve hydration levels and skin texture.

Research on related peptides suggests potential synergistic effects when combined with complementary actives, though the precise mechanisms of action for this specific peptide in cosmetic formulations remain an area of ongoing study.

Clinical Evidence & References

Clinical studies on hexapeptide-3 combined with other peptides show measurable improvements in skin microtopography, elasticity parameters, and transepidermal water loss after 20-60 days of use. These studies were conducted on small volunteer groups over relatively short timeframes.

Evidence specifically isolating hexapeptide-3 alone is limited, so most data comes from combination formulations. The ingredient appears well-tolerated in cosmetic applications, though large-scale safety and efficacy data are not extensive.

How to Use

Hexapeptide-3 is typically found in serums, creams, and gel formulations. For best results, apply to clean, dry skin and allow time for absorption before layering other products. Consistent daily use over several weeks is generally recommended to observe changes in skin texture and hydration. It works well alongside other hydrating or conditioning ingredients.

Safety & Precautions

Hexapeptide-3 is generally well-tolerated in skincare products. As with any new ingredient, patch testing is advisable for those with sensitive or reactive skin.

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