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OLEYL OLEATE.

Valuable CAS 3687-45-4 / SKIN CONDITIONING - EMOLLIENT

A sophisticated non-greasy ester, Oleyl Oleate functions primarily as a potent emollient and skin conditioner. It deeply hydrates by trapping moisture within the skin, while also enhancing elasticity and promoting a smooth, velvety texture.

Summary

Emollient Humectant Moisturizer Skin Conditioner Skin Protectant SPF Enhancer

Science

Mechanism of Action

Oleyl Oleate acts as a multifaceted skin conditioner, primarily functioning as an emollient, humectant, and skin protectant. It forms a lipid-rich film on the skin's surface, effectively trapping moisture to boost hydration and softness, thereby improving skin elasticity. Its non-greasy profile contributes to a silky smooth feel and enhances the absorption of other active ingredients.

Research

Clinical Evidence

Medium confidence
Effective range 1–10%
Optimal

N/A

Key findings

  1. 01 Demonstrates safety and non-toxicity within a 1-10% concentration range; however, higher levels may induce mild skin and eye irritation.
  2. 02 Exhibits an intrinsic SPF value of 8.0, suggesting low standalone UV protection but indicating potential as an emollient with SPF-enhancing properties.

Transparency

Dusting Analysis

Not commonly dusted

Oleyl Oleate is an oil-soluble ester designed for emollient properties and smooth application, and as such, it does not exhibit 'dusting' behavior in cosmetic formulations.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Oleyl Oleate maintains good oxidative stability with a peroxide value of 17.98 meq/kg, well within the acceptable limit for cosmetic formulations (below 20). It is an ester that integrates effectively with other natural emollients, contributing to a smooth, spreadable texture while balancing the overall oiliness of a formulation.

Synergies

  • Other natural emollients

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
10%
Sensitization risk Low

The CIR Expert Panel has deemed Oleyl Oleate safe for cosmetic use within current concentrations, provided the final formulations are non-irritating. It is considered safe and non-toxic when used between 1% and 10%; however, concentrations exceeding 10% may lead to mild skin and eye irritation. PubChem data corroborates a low overall hazard profile, with 83.4% of reports indicating it does not meet GHS hazard criteria for irritation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Oleyl Oleate is a valuable, non-comedogenic emollient that effectively enhances skin hydration, texture, and the absorption of active ingredients across all skin types, with additional benefits for SPF enhancement within its recommended 1-10% concentration.

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