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DECETH-4 PHOSPHATE.

Valuable CAS 9004-80-2 / 52019-36-0 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

DECETH-4 PHOSPHATE is an anionic surfactant derived from decyl alcohol ethoxylate and phosphoric acid, primarily functioning as an emulsifier and cleansing agent. It effectively reduces surface tension, enabling the stable dispersion of immiscible phases in cosmetic formulations.

Summary

Emulsifying Agent Surfactant Cleansing Agent Solubilizer

Science

Mechanism of Action

As an anionic surfactant, DECETH-4 PHOSPHATE possesses a hydrophilic phosphate head and a lipophilic ethoxylated decyl tail. This amphiphilic structure allows it to reduce the interfacial tension between oil and water, forming stable emulsions by encapsulating oil droplets within a water phase or vice-versa. In cleansing applications, it effectively solubilizes and lifts oily impurities and environmental pollutants from the skin surface, facilitating their removal upon rinsing.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

DECETH-4 PHOSPHATE is a functional ingredient, typically incorporated at concentrations necessary to achieve its emulsifying or cleansing properties. Its utility is directly tied to its concentration, making it unlikely to be 'dusted' at sub-functional levels for marketing claims.

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 8
0 7 14

Stability

Exhibits good hydrolytic stability within a broad pH range typical for cosmetic applications. Maintaining a pH above 4.0 is generally recommended to prevent potential cleavage of the phosphate ester bond.

Synergies

  • Often used in conjunction with non-ionic and amphoteric surfactants to optimize cleansing efficacy and mildness profiles.
  • Can enhance the stability of emulsions when combined with other emulsifiers and rheology modifiers.

Conflicts

  • High concentrations of strong electrolytes may reduce its emulsifying capacity.
  • May interact with certain cationic polymers or ingredients, potentially leading to precipitation or reduced performance due to charge interactions.

Safety

Safety Profile

CIR Status
Reviewed by CIR (Cosmetic Ingredient Review) Expert Panel, deemed safe for use in cosmetics under current practices.
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Generally recognized as safe for topical application. While individual sensitivities can occur with any ingredient, its overall irritation and sensitization potential are considered low, particularly in rinse-off formulations or when properly formulated in leave-on products.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

DECETH-4 PHOSPHATE is a valuable functional ingredient, offering effective emulsification and gentle cleansing properties suitable for a wide range of skincare and haircare formulations.

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