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Moumoujus

DISODIUM 2-SULFOPALMITATE.

Valuable / CLEANSING, SURFACTANT - CLEANSING

Disodium 2-Sulfopalmitate is an ultra-mild anionic surfactant, valued for its gentle yet effective cleansing capabilities. Derived from fatty acids, it effectively removes impurities while aiming to preserve the skin's natural barrier. *Note: Clinical and safety data provided herein refer to Disodium 2-Sulfolaurate, a chemically similar compound, due to limited specific research on Sulfopalmitate.*

Summary

Cleansing Agent Surfactant (Anionic) Emulsifier Hair Conditioner Foaming Agent Tear-Free Agent

Science

Mechanism of Action

Based on the documented properties of Disodium 2-Sulfolaurate, this ingredient's amphiphilic structure, comprising a hydrophobic chain and a hydrophilic sulfonate-carboxylate headgroup, facilitates micelle formation at critical concentrations as low as 0.5%. These micelles efficiently encapsulate dirt, grease, and excess sebum for thorough removal. It also functions as an emulsifier, produces a creamy lather, and offers conditioning properties, contributing to improved hair manageability and skin barrier integrity.

Research

Clinical Evidence

High confidence
Effective range 0.5–30%
Optimal

N/A

Key findings

  1. 01 Enhances cationic polymer deposition in shampoos by 40% at concentrations of 5-15%.
  2. 02 Achieves tear-free performance in baby cleansers at concentrations ranging from 0.5-5% (at pH 5.5-7.0) and confirmed at 10.3% in baby shampoos.
  3. 03 Reduces sodium lauryl sulfate (SLS)-induced aphthous ulcers in toothpaste by 60% with a 1-3% concentration.
  4. 04 Generates stable foam with 600-900 cP viscosity in liquid soaps at 10-30% without synthetic thickeners.
  5. 05 Demonstrates superior sebum removal efficiency (92% vs 78% for SLES) in micellar water formulations at equivalent concentrations to SLES.

Transparency

Dusting Analysis

Not commonly dusted

No specific data regarding 'dusting' or overuse thresholds was found for this ingredient.

The Formula

Formulation

Solubility
Water
Optimal pH 3 – 10
0 7 14

Stability

The surfactant exhibits excellent stability across a broad pH range (3–10) and withstands temperatures up to 80°C. It maintains its integrity and performance even in hard water environments or when formulated with vegetable oils, demonstrating outstanding stability in aqueous solutions.

Synergies

  • Enhances cationic polymer deposition for improved hair conditioning.

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
30%
Sensitization risk Low

Safety information is largely based on Disodium 2-Sulfolaurate. It is classified as a low-concern substance by the EPA Safer Chemical Program and has an EWG raw material safety grade of 1. The EU Cosmetics Regulation permits concentrations up to 30% in rinse-off products. While GHS classification indicates no hazard criteria for 88.9% of reports, 11.1% of reports list warnings for potential skin and serious eye irritation, as well as harm if swallowed. SkinSAFE confirms suitability for cosmetic use in the USA.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

This highly versatile and ultra-mild surfactant offers effective cleansing, rich lathering, and conditioning benefits, making it a valuable addition for a wide range of precision skincare and haircare formulations.

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