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Moumoujus

STEARYL BETAINE.

Valuable CAS 820-66-6 / ANTISTATIC, CLEANSING, FOAMING, HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING

Stearyl Betaine is a versatile amphoteric surfactant and skin conditioning agent that contributes to the mildness and performance of cosmetic formulations. It enhances foam generation and stabilizes product texture while offering conditioning benefits to the skin.

Summary

Surfactant (cleansing) Skin conditioning Foam boosting Viscosity control Mildness enhancing

Science

Mechanism of Action

Operating as a long-chain alkyl betaine, Stearyl Betaine effectively reduces surface tension, enabling gentle cleansing and improved lather. Its presence contributes to skin conditioning and can mitigate the potential irritation often associated with other surfactants, thereby promoting a milder sensory experience.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Formulators should prioritize non-irritating development when incorporating Stearyl Betaine. Its long-chain structure enables an increase in viscosity through the formation of worm-like micelles at higher concentrations. Consideration of aqueous solution stability is important when blending with other surfactants to maintain product integrity.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The CIR Expert Panel has concluded that Stearyl Betaine, alongside other alkyl betaines, is safe for use in cosmetic products provided that formulations are developed to be non-irritating. While a specific maximum concentration for Stearyl Betaine was not identified, related alkyl betaines have been safely used at concentrations up to 8.8% in rinse-off hair products. It is not restricted in the European Union and is listed in the FDA's VCRP database.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Stearyl Betaine is a valuable ingredient for formulating gentle, effective cleansers and conditioning products, suitable for all skin types due to its mild surfactant and skin-conditioning attributes.

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References

Sources