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ISOPROPYL LAUROYL SARCOSINATE.

Valuable CAS 230309-38-3 / SKIN CONDITIONING

Isopropyl Lauroyl Sarcosinate is a multi-functional ester known for its lightweight emollient properties, contributing to a smooth, non-greasy skin feel. It also functions as a sophisticated texture enhancer and dispersant, optimizing product spreadability and uniform ingredient distribution.

Summary

Emollient Solvent Dispersant Texture Enhancer Mild Cleansing Agent Foam Booster Penetration Enhancer

Science

Mechanism of Action

This ingredient works by forming a fine, non-occlusive barrier on the skin's surface, effectively minimizing transepidermal water loss and enhancing overall skin smoothness. As a polar emollient, it expertly dissolves and uniformly disperses hydrophobic components like UV filters and pigments within formulations. Its unique structure also facilitates improved penetration of oil-soluble active ingredients, while contributing to a refined product texture and mild cleansing action, potentially offering antibacterial and anti-inflammatory benefits.

Research

Clinical Evidence

High confidence
Effective range 2–10%
Optimal

N/A

Key findings

  1. 01 Multiple sources indicate safe and effective use in cosmetic formulations within a 2-10% concentration range, with a general consensus of non-irritating and non-comedogenic properties.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Demonstrates exceptional chemical and thermal stability, maintaining integrity and performance across a broad spectrum of pH conditions.

Synergies

  • Enhances the dispersion and uniform distribution of UV filters and pigments.
  • Facilitates the incorporation of poorly soluble ingredients.
  • Improves penetration of oil-soluble active ingredients into the skin.

Conflicts

  • Avoid use in formulations where N-nitroso compounds could potentially form, as sarcosine derivatives may be susceptible to nitrosation, leading to known animal carcinogens like N-nitrososarcosine.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

Considered safe for use in cosmetics at concentrations up to 10% by regulatory bodies, including the European Cosmetics Regulation and the Australian Industrial Chemicals Introduction Scheme (AICIS). While generally non-irritating and non-comedogenic according to most data, some isolated rabbit studies reported slight skin/eye irritation, and very sensitive individuals might experience minor irritation. The CIR has assessed related sarcosinate ingredients as safe up to 5% in leave-on products, with a critical caution against formulations prone to N-nitroso compound formation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Isopropyl Lauroyl Sarcosinate is a highly valuable, well-tolerated ingredient that provides lightweight emollience, enhances product texture, and improves active delivery across all skin types.

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