Acetyl Octapeptide-3 Oligopeptide-133

INCI: ACETYL OCTAPEPTIDE-3 OLIGOPEPTIDE-133

Also known as: Acetyl Octapeptide-3 Oligopeptide-133

A peptide designed to support skin firmness and structure in anti-ageing formulations

At a glance

Peptide

Best For Skin Types

All, Mature

Addresses

Fine lines, Firmness, Skin density

Usage Frequency

Daily

What Is Acetyl Octapeptide-3 Oligopeptide-133?

Acetyl octapeptide-3 is a synthetic peptide — a short chain of amino acids — created in the laboratory for use in skincare products. Peptides are fragments of proteins, and this particular ingredient is included in formulations primarily for its skin-conditioning properties.

In cosmetic products, acetyl octapeptide-3 functions as a skin conditioner. It is often used as part of multi-ingredient anti-ageing systems, typically in advanced delivery formats such as microneedle patches, where it works alongside other active ingredients to address visible signs of ageing.

How It Works

Peptides like acetyl octapeptide-3 are thought to work by signalling to skin cells and supporting the skin's natural structure. When delivered effectively — particularly through advanced systems like dissolving microneedles — peptides can help communicate with fibroblasts, the cells responsible for producing collagen and elastin.

This ingredient is rarely used in isolation; it performs most effectively as part of a carefully formulated system that includes complementary actives, hydrating agents, and stabilising ingredients that work together to address multiple signs of ageing.

Clinical Evidence & References

Research into acetyl octapeptide-3 has primarily examined it within combination formulations delivered via microneedle patches rather than as a standalone ingredient. Clinical studies suggest that when combined with hyaluronic acid, vitamin C derivatives, and other peptides, formulations containing acetyl octapeptide-3 may support improvements in skin hydration, fine lines, density, and overall skin thickness over sustained use.

Evidence is most robust when this peptide is used in advanced delivery systems that enhance skin penetration. Evidence for its efficacy in conventional topical formats (creams, serums) is more limited, and more research would help clarify its contribution in these delivery methods.

How to Use

Products containing acetyl octapeptide-3 are typically used once or twice daily as part of a regular skincare routine. To support optimal results, use consistently over several weeks, as peptide-based products often require sustained application. When used in microneedle patches, follow product instructions carefully regarding frequency and application technique. Layer other products according to standard skincare principles: apply to clean skin, allow to absorb, and follow with moisturiser and sun protection during the day.

Safety & Precautions

Acetyl octapeptide-3 is generally well-tolerated in skincare products. No specific cautions have been widely reported, though as with any active ingredient, patch testing is sensible for those with sensitive skin.

Regulatory information

Standardised cosmetic-ingredient identifiers used by regulators.

Show identifiers
INCI Name
ACETYL OCTAPEPTIDE-3 OLIGOPEPTIDE-133
Function
Skin Conditioning

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