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SODIUM COCOYL LACTYLATE.

Valuable CAS - / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Sodium Cocoyl Lactylate is a versatile ingredient derived from coconut oil and lactic acid, functioning as an emulsifier, mild surfactant, and skin-conditioning agent. It is prized for its ability to stabilize formulations, gently cleanse, and enhance skin hydration across various cosmetic products.

Summary

Emulsifier Surfactant (mild cleanser) Skin-conditioning agent Hydration support Preservative booster

Science

Mechanism of Action

This ingredient expertly blends oil and water-based components as an emulsifier, ensuring consistent product texture and stability. As a mild surfactant, it effectively removes impurities and excess oil from the skin without compromising the natural moisture barrier. Furthermore, Sodium Cocoyl Lactylate provides skin-conditioning benefits, promoting a soft, smooth, and hydrated complexion, partly by reducing transepidermal water loss (TEWL). It also contributes to formula integrity by enhancing the performance of antimicrobial agents, acting as a preservative booster.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 4 – 9
0 7 14

Stability

Sodium Cocoyl Lactylate exhibits robust stability across a broad pH range of 4 to 9, with related compounds showing optimal performance typically between pH 5 and 7. It maintains good stability under normal temperature conditions and is soluble in both oil and water.

Synergies

  • Enhances the performance of antimicrobial agents, acting as a preservative booster.

Conflicts

  • General compatibility with diverse ingredients should always be verified through testing prior to final product development.

Safety

Safety Profile

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

The CIR Expert Panel concluded that Sodium Cocoyl Lactylate, as part of the 'Alkanoyl Lactyl Lactate Salts' family, is safe for cosmetic use within current practices and concentrations, provided formulations are non-irritating and non-sensitizing. It generally has a low irritation potential at typical usage concentrations. The maximum reported use for a related lactylate in rinse-off products is 10%, while for leave-on products, related lactylates have maximum reported concentrations ranging from 1.9% to 6.1%. Some related lactylates (Sodium Lauroyl Lactylate and Sodium Caproyl/Lauroyl Lactylate) have been identified as weak to weak-moderate skin sensitizers in certain tests. Its use is approved by the EU Cosmetic Regulation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Sodium Cocoyl Lactylate is a valuable, multifunctional ingredient, providing effective emulsification, gentle cleansing, and skin-conditioning benefits with a favorable safety profile across various skin types.

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