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UNDECYLENOYL GLYCINE.

Valuable / CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING

An amino acid-based active, Undecylenoyl Glycine is a multifunctional ingredient that helps balance skin sebum, combat microorganisms, and restore the skin's natural acidic mantle. It supports clearer, healthier-looking skin while also offering gentle cleansing and conditioning properties.

Anti-sebum Antimicrobial Antibacterial Antifungal Dermo-protective Skin conditioning Deodorant Surfactant/Cleansing

Science

This ingredient reduces sebum production by inhibiting 5alpha-reductase and exhibits broad antimicrobial action against acne-causing bacteria and yeasts. It further acts as a dermo-protective agent, helping restore skin's natural pH, and improves skin texture and moisture retention.


Research

High confidence
Effective range 0.5–2%
Optimal

2%

Key findings

  1. 01 Clinical data shows effective sebum regulation and inhibition of acne-causing microorganisms at a 2.0% concentration, optimally formulated at pH 7.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

A white powder, it has limited water solubility below pH 5 but dissolves optimally at pH >7, enhanced by heating to 90°C. It is stable under normal conditions, with recommendations to avoid temperatures above 80°C.

Synergies

  • Niacinamide
  • Zinc PCA
  • Salicylic Acid
  • Tea Tree Oil
  • Lactic Acid

Conflicts

  • substances reacting rapidly
  • materials leaving/carrying moisture vapor
  • formulations where N-nitroso compounds can be formed

Safety

CIR Status
Safe with restrictions
Pregnancy
Safe
Sensitization risk Low

The raw substance carries GHS 'Danger' classifications for serious eye damage and aquatic harm. However, it is considered safe in cosmetic formulations when non-irritating and non-sensitizing at typical concentrations.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

Undecylenoyl Glycine is a valuable multifunctional ingredient offering proven efficacy in sebum regulation, antimicrobial action, and skin conditioning for a wide range of skin types and product applications.


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