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Moumoujus

DI-C12-15 PARETH-10 PHOSPHATE.

Valuable / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

DI-C12-15 PARETH-10 PHOSPHATE is a sophisticated surfactant and emulsifying agent crucial for stabilizing cosmetic formulations, allowing oil and water to blend seamlessly. It enhances the solubility of other ingredients while also contributing conditioning and moisturizing benefits to the skin. This ingredient is generally deemed safe for cosmetic applications when formulated appropriately.

Summary

emulsifying surfactant cleansing solubilizing conditioning moisturizing

Science

Mechanism of Action

Functioning as an amphiphilic surfactant, DI-C12-15 PARETH-10 PHOSPHATE reduces the surface tension between immiscible phases, thereby facilitating the formation and stabilization of emulsions. Its molecular structure allows it to effectively cleanse, solubilize lipophilic components, and ensure homogeneous dispersion within a formula. Furthermore, it imparts conditioning properties, aids in skin moisturization, and is hypothesized to offer a stimulant relief effect.

Research

Clinical Evidence

Medium confidence
Effective range 0.02–3%
Optimal

N/A

Key findings

  1. 01 Reported concentrations of the related C12-15 pareth-12 in leave-on cosmetic formulations span 0.02% to 3%, with rinse-off products utilizing 0.02% to 0.04%.
  2. 02 Human repeat insult patch tests (HRIPT) for the related C12-15 pareth-12 showed no evidence of sensitization, even at high concentrations of 5% to 15%.
  3. 03 Recommended usage levels for the related C12-15 Pareth-12 in formulations range from 0.2% to 1.0%.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

This ingredient exhibits emulsifying, solubilizing, and dispersing capabilities across a broad pH spectrum, indicating good stability. However, it is susceptible to hydrolysis under strongly acidic conditions.

Conflicts

  • Strong acid conditions (easily hydrolyzed)
  • Hard water

Safety

Safety Profile

CIR Status
Safe as used
Max tested
3%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed DI-C12-15 PARETH-10 PHOSPHATE, as part of the broader alkyl phosphate family, safe for cosmetic use when formulated to be non-irritating. While the undiluted ingredient can cause severe eye irritation, this risk is substantially mitigated at typical cosmetic application levels. Studies indicate low acute dermal toxicity and minimal skin absorption (below 2%). No significant systemic, reproductive, genotoxic, or carcinogenic concerns have been identified at standard cosmetic exposure levels. Potential impurities such as ethylene oxide and 1,4-dioxane are minimized by manufacturers to levels below safety thresholds. Formulators should be aware of its intolerance to hard water and its susceptibility to hydrolysis under strong acid conditions.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A versatile surfactant and emulsifier, this ingredient is valued for its ability to stabilize formulations and offer skin conditioning benefits across various product types, with a low sensitization risk.

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