Science
Mechanism of Action
This ingredient operates as a potent emollient, effectively reducing transepidermal water loss and reinforcing the skin's natural barrier, leading to softer and smoother skin. It also functions as a humectant, drawing and retaining moisture to optimize the skin's hydration levels. Beyond hydration, Phytosteryl Isostearate exhibits anti-inflammatory and anti-irritant properties, helping to calm redness and discomfort, making it beneficial for sensitive skin conditions. Furthermore, it acts as an antioxidant, neutralizing free radicals to prevent cellular damage, and can support anti-aging efforts by inhibiting collagenase activity. In formulation, it serves as an emulsifier and stabilizer, ensuring harmonious blending of oil and water phases.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Phytosteryl Isostearate demonstrates good oxidation stability, contributing to a prolonged shelf life for finished formulations.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Phytosteryl Isostearate is safe for use in cosmetic applications within current practices and concentrations. Multiple tests of dermal and ocular exposure reported little to no irritation or sensitization for phytosterol ingredients, including Phytosteryl Isostearate. The maximum reported use concentration for leave-on products and lipsticks is 3%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Phytosteryl Isostearate is a valuable ingredient offering significant benefits for skin barrier integrity, hydration, and soothing, with a strong safety profile and broad compatibility across skin types.
Related
Similar Ingredients
Finding similar ingredients…