Peptides

Tripeptide-3

INCI: TRIPEPTIDE-3

Reviewed by Emma · Last updated 14 Aug 2026

A peptide fragment designed to help regulate sebum production on oily skin

Best For Skin Types

Oily, Combination

Addresses

Oil control

Usage Frequency

Daily

What Is Tripeptide-3?

Tripeptide-3 is a short-chain peptide—a fragment of amino acids—formulated to address excess oil production. Peptides are commonly used in skincare for their ability to communicate with skin cells and influence specific biological processes. Tripeptide-3 appears in relatively few products (roughly 0.1% of formulations), suggesting it remains a specialised ingredient.

This ingredient functions as a skin conditioner and has been studied primarily for its potential to reduce sebum (facial oil) production. It is typically incorporated into formulations designed to support oily or combination skin.

How It Works

Peptides work by signalling skin cells to perform specific functions. Tripeptide-3 is hydrophilic (water-loving), which presents a formulation challenge—skincare products are largely oil-based. Recent research has explored microemulsions and nanoemulsions as delivery systems to help this peptide reach the skin effectively and interact with sebum-producing cells.

The exact mechanism by which Tripeptide-3 influences oil production is not fully detailed in available literature, though the research suggests it may work through interfacial interactions that modify how the skin produces and regulates sebum.

Clinical Evidence & References

Research into Tripeptide-3 has focused on optimising its delivery to the skin and measuring its anti-sebum efficacy. Studies have confirmed that microemulsion and nanoemulsion formulations can successfully transport this peptide to facial skin, and that these delivery systems show promise for reducing oil production.

However, evidence remains limited, and most data comes from formulation and efficacy studies rather than large-scale clinical trials. More research is needed to establish optimal concentrations, long-term benefits, and how it performs against other oil-control ingredients.

How to Use

Tripeptide-3 is most relevant for those with oily or combination skin concerned with sebum control. Because it appears in relatively few products, check the full ingredient list to understand the delivery system used (microemulsion or nanoemulsion formulations may offer better efficacy). Use as directed on the product label, typically as part of a morning or evening routine.

Safety & Precautions

Peptides are generally well-tolerated by most skin types. No significant safety concerns have been identified, though individual sensitivity is always possible. Those with fungal acne sensitivities may wish to review the full formula, as some have questioned whether certain peptides could theoretically feed fungal overgrowth—though evidence for Tripeptide-3 specifically is limited.

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