Science
Mechanism of Action
PEG-75 Sorbitan Lanolate primarily operates as an emollient by creating a protective, thin occlusive film on the skin's surface. This action effectively minimizes transepidermal water loss, leading to indirect moisturizing, smoothing, and softening effects. Concurrently, it functions as a humectant, drawing moisture into the stratum corneum to boost overall skin hydration levels. Its non-ionic surfactant properties are pivotal for reducing surface tension, enabling the formation and stabilization of oil-in-water emulsions. Furthermore, it acts as a solubilizer, facilitating the dispersion of hydrophobic substances, such as plant extracts or fragrance compositions, into aqueous solutions, yielding clear and homogenous mixtures. It also contributes to skin conditioning and can modulate product viscosity.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Clinical applications at concentrations of 0.5% to 5% confirm its efficacy as an emollient, moisturizer, and conditioning agent in diverse cosmetic formulations.
- 02 Extensive patch tests, conducted daily over a four-week period on 11 subjects, revealed no adverse skin reactions when utilizing the ingredient at a 100% concentration.
- 03 Comprehensive reviews indicate the ingredient is non-sensitizing and causes only mild or negligible skin irritation at concentrations ranging from 10% to 60%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient exhibits robust stability across a broad pH range of 2 to 10. As a non-ionic compound, its solutions are compatible with most other solubilizers, including electrolyte solutions up to 10% concentration. It demonstrates minimal susceptibility to oxidative and reducing agents and integrates effectively with most fats and waxes. However, to preserve its structural integrity, prolonged heating above 80°C should be avoided during formulation.
Synergies
- Compatible with most other solubilizers (up to 10% electrolyte solutions)
- Compatible with most fats and waxes
Conflicts
- Prolonged heating above 80°C
Safety
Safety Profile
The Cosmetic Ingredient Review Expert Panel has deemed PEG-75 Sorbitan Lanolate safe for use in cosmetic and personal care products, having reviewed concentrations between 0.2% and 36%. It is generally considered non-toxic and typically does not induce skin or eye irritation. While broadly well-tolerated, rare allergic reactions may occur, predominantly in individuals with pre-existing sensitivity to lanolin. Trace amounts of 1,4-dioxane, a potential processing byproduct, are generally controlled through stringent purification steps. Notably, one source advises against its use in formulations specifically intended for children and pregnant individuals.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-75 Sorbitan Lanolate is a valuable multi-functional ingredient for comprehensive skin hydration, barrier support, and formulation stability, demonstrating a low risk of irritation across various skin types.
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