Film-Forming Agent

Dibutyl Lauroyl Glutamide

INCI: DIBUTYL LAUROYL GLUTAMIDE

Reviewed by Daisy · Last updated 14 Aug 2026

A conditioning agent that forms a protective layer on skin and hair

Best For Skin Types

All, Dry, Mature

Addresses

Dryness, Hydration

Usage Frequency

Daily

What Is Dibutyl Lauroyl Glutamide?

Dibutyl lauroyl glutamide is a synthetic conditioning ingredient derived from glutamic acid, an amino acid found naturally in the skin. It belongs to a class of compounds designed to coat and protect the outer layers of skin and hair.

In skincare formulations, it functions as a film-forming and conditioning agent, meaning it creates a thin, occlusive layer on the skin's surface. This layer is intended to help lock in moisture and improve the texture and feel of a product.

How It Works

Dibutyl lauroyl glutamide works by depositing a thin, water-resistant film across the skin's surface. This occlusive layer sits on top of the stratum corneum (the outermost layer of skin) and physically prevents moisture from evaporating into the air.

The ingredient's conditioning properties also help smooth and soften the skin's texture, which can improve how a formula feels and how the skin appears immediately after use. However, this is primarily a cosmetic benefit rather than a therapeutic change to skin health.

Clinical Evidence & References

Limited peer-reviewed research is available specifically on dibutyl lauroyl glutamide in skincare. The ingredient has a long history of use in cosmetics, and formulators generally regard it as an effective conditioning and film-forming agent based on empirical data and ingredient supplier information.

Its occlusive properties are consistent with how similar amino acid-derived conditioning agents behave, but robust clinical studies on skin health outcomes remain sparse. Most evidence of efficacy comes from cosmetic chemistry principles and manufacturer testing rather than published dermatological trials.

How to Use

This ingredient is typically used in small concentrations within formulations and works best as part of a layered skincare routine. It is often found in creams, serums, and leave-on treatments rather than rinse-off products. Allow the product to fully absorb before applying other products to avoid pilling or layering issues.

Safety & Precautions

Dibutyl lauroyl glutamide is generally well-tolerated and recognised as safe in cosmetic use. No significant adverse effects or safety concerns have been reported in standard use, though those with known sensitivities to amino acid derivatives should patch-test first.

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