Peptides

Sh-Pentapeptide-5

INCI: SH-PENTAPEPTIDE-5

Reviewed by Emma · Last updated 2 Jun 2026

A peptide that supports skin's natural conditioning and structural integrity

Best For Skin Types

All, Mature, Combination

Addresses

Fine lines, Loss of firmness, Barrier repair

Usage Frequency

Daily

What Is Sh-Pentapeptide-5?

Sh-Pentapeptide-5 is a synthetic peptide—a short chain of amino acids designed to mimic structures found naturally in skin. Peptides function as signalling molecules, communicating with skin cells to support various aspects of skin health and appearance.

This ingredient is classified as a skin conditioning agent, meaning it works to improve the texture, feel, and overall condition of the skin barrier. Like other peptides used in skincare, it is typically incorporated into formulations at relatively low concentrations to support skin structure and function.

How It Works

Peptides like Sh-Pentapeptide-5 work by communicating with skin cells through cell surface receptors. When applied topically, they can signal fibroblasts—the cells responsible for producing collagen and other structural proteins—to maintain or enhance their activity.

The specific mechanism involves mimicking natural signalling patterns that support skin's structural proteins and overall resilience. This supports the skin's natural ability to maintain its condition, particularly as it ages and naturally loses some of its structural capacity.

Clinical Evidence & References

Research shows that skin undergoes gradual structural changes with age, including a reduction in epidermal and dermal thickness, primarily due to declining stem cell activity and loss of collagen. Peptides are theorised to support these processes by signalling skin cells to maintain their function.

However, direct clinical evidence specifically for Sh-Pentapeptide-5 is limited. Most supporting data comes from general peptide research and in vitro studies. When considering this ingredient, it should be viewed as one component of a comprehensive skincare approach rather than a standalone solution for age-related changes.

How to Use

Sh-Pentapeptide-5 is most effective as part of a layered routine. Apply to clean skin, either in a serum or moisturiser, before occlusive products. It works well alongside other skin-conditioning ingredients and is generally compatible with most active ingredients, though introduce it gradually if you have sensitive skin.

Safety & Precautions

Peptides are generally well-tolerated across most skin types. As a synthetic ingredient, Sh-Pentapeptide-5 is unlikely to cause irritation, though those with significant sensitivities should patch-test first.

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