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SODIUM LARDATE.

Valuable CAS 68605-06-1 / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, SURFACTANT - FOAM BOOSTING

Sodium Lardate is a fatty acid salt that functions as an effective surfactant, widely utilized for its cleansing, emulsifying, and foam-boosting properties in skincare formulations. It effectively helps remove impurities from the skin and stabilizes mixtures of oil and water.

Summary

Cleansing Emulsifying Foam Boosting Surfactant

Science

Mechanism of Action

As an amphiphilic molecule, Sodium Lardate possesses distinct lipophilic (oil-attracting) and hydrophilic (water-attracting) segments. This molecular structure allows it to significantly reduce the surface tension of liquids, facilitating the homogeneous mixing of immiscible substances like oil and water. On the skin, it functions by binding to and solubilizing fat and soil particles, enabling their efficient removal with water. In product formulations, this property is crucial for creating and maintaining stable emulsions, such as those found in creams and lotions.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH ≥10
0 7 14

Stability

Soaps, including Sodium Lardate, are sensitive to pH and salt concentrations. For clear and stable aqueous solutions, a pH exceeding 10 is typically required; a reduction in pH below this level can lead to turbidity and instability. Optimal functional performance of such soaps generally occurs within an alkaline pH range of 8 to 10.

Conflicts

  • Cationic surfactants
  • Low pH (below 10, resulting in instability and turbidity)
  • Hard water (due to interaction with metal ions)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
84.7%
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Sodium Lardate, within the group of Fatty Acids & Fatty Acid Salts, is safe for use in cosmetics when current practices and concentrations are applied, provided the formulation is non-irritating. The FDA has also affirmed several fatty acids and their salts, including those related to Sodium Lardate, as 'generally recognized as safe (GRAS)' for use as food additives. Maximum reported concentrations for related fatty acid salts reach up to 84.7% in bath soaps and detergents, and up to 74.5% in leave-on baby products.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Sodium Lardate is a valuable surfactant and cleansing agent, broadly recognized as safe for cosmetic use when properly formulated, particularly effective for oily and normal skin types in alkaline environments.

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