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Moumoujus

SODIUM LIGNOSULFONATE.

Valuable CAS 8061-51-6 / SURFACTANT - CLEANSING

Sodium Lignosulfonate is a multi-functional, bio-derived polymer extracted from lignin, offering diverse benefits in precision skincare. It primarily acts as an effective surfactant, dispersant, and emulsifier, while also demonstrating promising antioxidant, anti-inflammatory, and protective properties for the skin.

Summary

surfactant/cleansing emulsifying dispersing anti-pollution antioxidant

Science

Mechanism of Action

This natural polyelectrolyte operates as a surfactant, adept at reducing surface and interfacial tension, which enables stable dispersion, enhanced wetting, and effective emulsification within formulations. Derived from lignin, it extends its action to the skin by scavenging free radicals, thus providing antioxidant protection, and contributes to skin defense by absorbing UV radiation.

Research

Clinical Evidence

Medium confidence
Effective range 0.05–1%
Optimal

N/A

Key findings

  1. 01 Lignin hydrolysate (a related compound) exhibited dose-dependent antioxidant activity, with 0.25% concentration achieving 75% inhibition of formazan dye production, suggesting enhanced Superoxide Dismutase (SOD) activity. Effects were observed from 0.05%.
  2. 02 Lignin hydrolysate (a related compound) showed in vitro anti-inflammatory effects, reducing IL-1α release by 31.25% at 0.1% and 28.77% at 0.3% after 24 hours in an irritated skin cell model.
  3. 03 Lignin hydrolysate (a related compound) at 1% concentration displayed a slight dose-dependent inhibition of basophil degranulation, indicating potential anti-itching benefits.

Transparency

Dusting Analysis

Not commonly dusted

Information regarding specific dusting properties or inhalation thresholds for Sodium Lignosulfonate in cosmetic manufacturing is not available in the provided research data.

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 10
0 7 14

Stability

Sodium Lignosulfonate maintains stability across a broad pH spectrum, from mildly acidic to alkaline (pH 4–10). Stability is maintained in dry form and aqueous solutions, though disaggregation may occur above pH 10.34, and lowering the pH can induce aggregation or precipitation.

Conflicts

  • oxidizing agents
  • strong acids
  • strong bases
  • heat

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

No direct assessment by CIR or SCCS is available. The Australian AICIS conducted a 'Human health tier I assessment' for Lignosulfonic acid, sodium salt. The EPA Safer Chemical program recognizes Sodium Ligninsulfonate as a 'Green circle' chemical, suggesting low concern. While generally not classified as hazardous by OSHA (90.1% of reports), direct contact can cause mild skin and eye irritation. It is listed by the FDA as a food contact substance and boiler water additive.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Sodium Lignosulfonate is a versatile, bio-derived ingredient valued for its fundamental roles as an emulsifier and cleansing agent, complemented by promising antioxidant and anti-inflammatory potential for enhanced skin protection and soothing.

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