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CAPRYLYL HYDROXYBUTYRAMIDE.

Valuable CAS 74042-18-5 / HAIR CONDITIONING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A multifunctional, lipid-derived amide designed to enhance formula stability while actively reinforcing the skin's barrier resilience. It functions primarily as a high-performance conditioning agent that mitigates the potential irritation of surfactant-based systems.

Skin Conditioning Surfactant Booster Barrier Protection Soothing Agent

Science

This amphiphilic molecule integrates into the lipid bilayer of the stratum corneum, where it stabilizes the membrane structure and modulates the penetration of potential irritants. By reducing the critical micelle concentration (CMC) of surfactants, it minimizes skin-protein denaturation during cleansing.


Research

Medium confidence
Effective range 0.1–1%
Optimal

0.5%

Key findings

  1. 01 In vitro evaluation of lipid membrane stabilization and transepidermal water loss (TEWL) reduction in surfactant-stressed skin models.

Transparency

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Frequently included at ultra-low concentrations (below 0.1%) to claim 'soothing' properties in rinse-off products, whereas concentrations of 0.5% or higher are required for measurable barrier protection.


The Formula

Solubility
Oil
Optimal pH 4.5 – 7
0 7 14

Stability

Highly stable across a broad temperature range; exhibits excellent compatibility with non-ionic and anionic surfactant systems.

Synergies

  • Caprylyl Glycol
  • Sodium Cocoyl Isethionate
  • Ceramides

Safety

CIR Status
Safe as used
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

Non-sensitizing and non-irritating even in leave-on applications.


Your Skin

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

Our Assessment

Valuable

An excellent auxiliary ingredient for sensitive skin formulations, particularly effective at neutralizing the harshness of cleansing agents when used at therapeutic levels.


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