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Moumoujus

SODIUM CASEINATE.

Valuable CAS 9005-46-3 / ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

Sodium Caseinate is a versatile protein derivative known for forming a protective skin barrier, enhancing softness and smoothness. It acts as an emollient and moisturizer, particularly beneficial for dry skin types, while also serving as a critical emulsifier and stabilizer in formulations.

Summary

Emollient Moisturizer Skin Barrier Agent Emulsifier Stabilizer Anti-Irritant Foaming Agent

Science

Mechanism of Action

This ingredient functions by creating a film on the skin's surface, which helps to retain moisture and improve texture. It delivers emollient and moisturizing benefits, contributing to a reduction in potential skin irritation. Within formulations, Sodium Caseinate is essential for preventing phase separation by acting as an emulsifier and stabilizer, ensuring product integrity.

Research

Clinical Evidence

Low confidence
Effective range 0.5–4%
Optimal

N/A

Key findings

  1. 01 Demonstrated superior foaming capability compared to whey protein and egg white powder in specific evaluations of foamability.
  2. 02 Utilized in active biopolymer coatings and explored for its antioxidant potential when combined with agents like gallic acid or rosemary oil.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 6.3 – 8
0 7 14

Stability

Sodium Caseinate exhibits good stability across a pH range of approximately 6.3 to 8.0, with a typical 1 in 50 solution having a pH between 6.5 and 7.5. Its viscosity remains largely unaffected between pH 6.3 and 7.2. Emulsifying efficiency is enhanced under alkaline conditions and diminishes at its isoelectric point. Structural alterations may occur with heat treatment at pH 9. It dissolves readily in both cold and hot water but is insoluble in ethanol.

Conflicts

  • strong oxidizing agents
  • reducing sugars (may affect lysinoalanine formation under heat)

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Moderate

While reviewed by the CIR, specific cosmetic safety concentrations or statuses were not explicitly determined. The FDA considers it safe for food use. A significant concern is its potential to trigger allergic reactions in individuals with a casein allergy. The EWG classifies it as 'Moderate' for 'Allergies & Immunotoxicity,' noting evidence of it being an immune/respiratory toxicant or allergen. Direct handling of the powder form may cause irritation to skin, eyes, and respiratory system, though it does not meet GHS hazardous substance criteria for general classification.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Sodium Caseinate offers valuable emollient, moisturizing, and formulation stabilizing benefits, particularly for dry skin, though its use requires careful consideration for individuals with casein allergies due to a moderate sensitization risk.

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