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C11-15 PARETH-3 OLEATE.

Valuable CAS 246538-04-5 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

A multifunctional nonionic surfactant that serves as both an emulsion stabilizer and skin-conditioning agent in cosmetic formulations. This ethoxylated oleate ester combines emollient properties with emulsification capabilities, helping to create stable product textures while smoothing skin surface irregularities.

emollient emulsifying surfactant

Science

Functions through dual action as a surfactant and emollient. The ethoxylated chain reduces surface tension to stabilize emulsions while potentially facilitating better penetration of other actives, while the oleate portion integrates with the skin's lipid barrier to provide conditioning benefits and improve tactile properties.


Research

Medium confidence
Effective range 0.1–5%
Optimal

1%

Key findings

  1. 01 Patent studies demonstrate effective use at 0.1-5% as co-emulsifier in topical compositions without compromising active ingredient performance
  2. 02 Research at 0.5-2% concentration shows ability to stabilize nanodispersions containing water-soluble actives like ascorbic acid across varying pH conditions

Transparency

Not commonly dusted

Functions as a formulation support ingredient rather than a primary active, making dusting unlikely and unnecessary


The Formula

Solubility
Oil
Optimal pH 5 – 8
0 7 14

Stability

Maintains stability under standard cosmetic storage conditions but susceptible to hydrolysis at extreme pH values below 3 or above 9 due to ester linkage

Synergies

  • Water-soluble actives like ascorbic acid
  • Other nonionic emulsifiers

Conflicts

  • Strong oxidizing agents
  • Highly acidic formulations (pH <3)
  • Strongly alkaline environments (pH >9)

Safety

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

CIR Expert Panel assessment within alkyl esters and polyethoxylated alcohols groups confirms safety when formulated appropriately. Cosmetic-grade materials maintain 1,4-dioxane contamination below 10ppm.


Your Skin

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

Our Assessment

Valuable

A reliable multifunctional ingredient that effectively combines emulsification and skin-conditioning properties with broad compatibility across skin types.


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