Science
Mechanism of Action
This emollient ester synergizes with the skin's natural barrier to significantly enhance its water-holding capacity and reduce transepidermal water loss (TEWL). It operates by stabilizing the lipid layers and bolstering the performance of Natural Moisturizing Factors (NMF) for optimal hydration. Furthermore, it forms a protective occlusive film on the skin's surface, preventing excessive moisture evaporation and resulting in conditioned, softer, and smoother skin.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 Clinical studies demonstrate improved skin water permeability barrier function compared to isopropyl isostearate (IPIS).
- 02 It has been shown to be more effective and safer than petrolatum as a moisturizer, without inducing pore occlusion.
- 03 Regulatory guidelines suggest a 5% concentration is sufficient for maximum benefits in skin hydration and protection.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Exhibits excellent oxidative stability due to its branched and saturated fatty chain structure, which minimizes rancidity and enhances overall product shelf life. The pH of the ingredient is typically neutral.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) has determined Isostearyl Isostearate to be safe for use in cosmetics, subject to specific concentration or usage limitations. European Cosmetics Regulation guidelines recommend a maximum concentration of 5%. It is generally considered non-irritating with a low risk of sensitization.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isostearyl Isostearate is a valuable emollient for enhancing skin hydration and barrier function, particularly beneficial for dry, sensitive, and normal skin types; however, its high comedogenicity should be carefully considered for acne-prone individuals.
Related
Similar Ingredients
Finding similar ingredients…