Skin Conditioning

Dimethyl Lauroyl Lysine

INCI: DIMETHYL LAUROYL LYSINE

Reviewed by Kate · Last updated 14 Aug 2026

A skin-conditioning agent that helps improve texture and surface smoothness

Best For Skin Types

All, Dry, Combination

Addresses

Dryness, Texture

Usage Frequency

Daily

What Is Dimethyl Lauroyl Lysine?

Dimethyl Lauroyl Lysine is a synthetic skin-conditioning ingredient derived from lysine, an amino acid. It combines a lauric acid chain with a modified lysine molecule to create a compound designed to improve how the skin feels and appears on the surface.

In skincare formulations, this ingredient functions as a conditioning agent, working to enhance skin texture and create a smoother, more refined appearance. It is typically used in small concentrations within moisturisers, serums and other leave-on products.

How It Works

Dimethyl Lauroyl Lysine conditions the skin by depositing a light, non-occlusive coating on the surface. This layer helps to smooth irregularities in the skin's texture without creating heaviness or a greasy feel.

The ingredient's molecular structure allows it to adhere to the skin and maintain this conditioning effect throughout the day, supporting a more polished appearance without interfering with the skin's natural functions.

Clinical Evidence & References

Formal clinical research specifically on Dimethyl Lauroyl Lysine is limited. The ingredient is well-established in cosmetic formulations and is regarded as safe by regulatory bodies including the European Commission, suggesting a strong track record of use and tolerability.

Evidence for its benefits comes primarily from cosmetic chemistry and consumer experience rather than published clinical trials. It is effective as a texture-enhancing agent, though individual results may vary depending on skin type and the formulation context.

How to Use

Dimethyl Lauroyl Lysine is typically found in leave-on products such as moisturisers, serums and primers. Apply your product containing this ingredient as directed, usually once or twice daily. Since it is a conditioning rather than active ingredient, it works best as part of a broader skincare routine and can be combined with other treatments without issue.

Safety & Precautions

Dimethyl Lauroyl Lysine is generally well-tolerated across skin types and is approved for use in cosmetics. It is unlikely to cause irritation or sensitivity in most people.

Frequently Asked Questions

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations