Science
Mechanism of Action
Lanolin Acid functions by creating a barrier on the skin's outermost layer, which actively reduces transepidermal water loss (TEWL) by forming a water-repellent film. This mechanism helps to lock in essential moisture, thereby promoting skin hydration, suppleness, and a smoother texture. Its fatty acid composition also contributes to improved oil phase compatibility in formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
While the parent compound Lanolin demonstrates broad pH stability, specific optimal pH ranges for Lanolin Acid are not detailed. It is noted that non-ionic surfactant lanolin derivatives may exhibit instability at elevated pH levels.
Conflicts
- Non-ionic surfactant lanolin derivatives may be unstable at high pH
Safety
Safety Profile
The CIR Expert Panel has determined Lanolin Acid, along with related Lanolin materials, to be safe for topical application under current cosmetic use practices and concentrations. Although Lanolin itself has established maximum use concentrations (e.g., 40% in leave-on products), specific maximum cosmetic concentrations for Lanolin Acid alone are not explicitly defined. However, undiluted forms have undergone irritation and toxicity assessments. The FDA permits Lanolin as both a food additive and an active ingredient in various OTC drug products, including skin protectants. No specific SCCS status for Lanolin Acid was identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Lanolin Acid is a valuable emollient, particularly beneficial for dry, normal, and sensitive skin types due to its moisture-retaining and barrier-forming properties, although its medium comedogenicity should be considered for acne-prone individuals.
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References
Sources