Science
Mechanism of Action
This ingredient operates via several distinct mechanisms: it acts as a humectant, effectively drawing and binding water to the skin's surface, thereby boosting hydration. As an emollient, it forms a fine protective film, minimizing trans-epidermal water loss and imparting a smooth, supple feel. Furthermore, its dual hydrophilic (water-loving) PEG and lipophilic (oil-loving) shea butter glyceride components allow it to function as a surfactant and emulsifier, reducing interfacial tension to create stable oil-in-water emulsions. This surfactant property also contributes to a milder cleansing experience, mitigating potential irritation from other cleansing agents.
Research
Clinical Evidence
High confidenceTypical usage in leave-on products is 0.01-1%, while rinse-off formulations can effectively utilize up to 3%.
Key findings
- 01 A female hygiene product formulated with 0.1% PEG-75 Shea Butter Glycerides demonstrated no evidence of vaginovulvar irritation in a controlled use study, indicating excellent mucosal compatibility.
- 02 A formulation containing 1% PEG-75 Shea Butter Glycerides underwent ocular tolerance testing and did not induce any irritation, highlighting its suitability for products used near the eyes.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The incorporation of polyethylene glycol significantly enhances the stability and shelf life of shea butter glycerides. PEG derivatives are generally well-tolerated by the skin and exhibit low microbiological sensitivity, which can often reduce or eliminate the need for additional preservatives in a formulation.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PEG-75 Shea Butter Glycerides safe for use, provided the final product formulation is non-irritating. Typical cosmetic concentrations range from 0.01% to 1%, though concentrations up to 3% are recommended for rinse-off products. While the PEG-75 component has been reviewed as safe at concentrations up to 36%, it is advised to avoid application on injured or compromised skin.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-75 Shea Butter Glycerides is a valuable, multi-functional ingredient that enhances hydration, softens skin, provides gentle cleansing, and stabilizes formulations across various skincare and hair care products, demonstrating broad compatibility and low irritancy.
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