Science
Mechanism of Action
Lanolin functions as an emollient by creating a protective, occlusive oil film on the skin's surface. This film effectively reduces transepidermal water loss (TEWL), thereby locking in moisture and preventing dehydration. Its strong penetrating and emulsifying properties further enhance skin hydration and barrier function.
Research
Clinical Evidence
High confidence12%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Lanolin is primarily oil-soluble, dissolving in mineral oils, vegetable oils, and silicone fluids (as Lanolin Oil), and highly soluble in chloroform and ether. It is not water-soluble but exhibits strong emulsifying properties, allowing it to be miscible with approximately twice its weight in water without phase separation. PEG-75 Lanolin is a water-soluble derivative. It blends effectively with most cosmetic formulation substances.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has consistently reaffirmed Lanolin's safety for topical application, with the most recent draft report in March 2024 upholding this conclusion for current cosmetic use practices. While undiluted Lanolin has shown no primary irritation in studies involving over 250 subjects, Lanolin was named the 2023 Contact Allergen of the Year. It is important to note that Lanolin Alcohol, a derivative, has shown positive patch test reactions in a percentage of patients with contact dermatitis, indicating a potential for sensitization in some susceptible individuals, especially to derivatives.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Lanolin is a valuable emollient and skin protectant, highly effective in restoring barrier function and moisturizing dry skin, though individuals with known sensitivity to lanolin or its derivatives should exercise caution.
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