Science
Mechanism of Action
As a long-chain primary fatty alcohol, Isotridecyl Alcohol functions by creating a protective, yet non-occlusive, film on the skin's surface. This barrier effectively reduces transepidermal water loss, contributing to enhanced skin hydration and a smoother texture. Furthermore, it acts as an effective solvent, dissolving and evenly dispersing various lipophilic ingredients within a formulation.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Isotridecyl Alcohol is miscible with most organic solvents but practically insoluble in water. For optimal stability, it should be stored under nitrogen, with temperatures not exceeding 40°C, and protected from moisture, ensuring a shelf life of 12 months. Its ethoxylated derivatives demonstrate stability across both acidic and alkaline pH ranges.
Safety
Safety Profile
While a dedicated CIR report for Isotridecyl Alcohol is not presently available, the Cosmetic Ingredient Review (CIR) has evaluated and deemed other related fatty alcohols, such as Cetearyl Alcohol, Cetyl Alcohol, and Isostearyl Alcohol, safe for cosmetic applications. The FDA differentiates fatty alcohols from ethyl alcohol in cosmetic labeling. Direct exposure to skin or eyes may lead to mild irritation, though its overall irritancy profile in formulated products is considered low.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isotridecyl Alcohol is a valuable ingredient, contributing significant emollient and solvent properties to skincare formulations with a favorable low irritancy and comedogenicity profile across various skin types.
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