Isopropyl Isostearate
Ingredient Info
Isopropyl isostearate is a lightweight emollient oil derived from fatty acids. It's used in moisturizers and skincare products to soften skin and help lock in hydration by improving the skin barrier's ability to retain water.
Benefits
- Improves skin barrier function and water retention
- Lightweight feel compared to heavier occlusives like petrolatum
- May help restructure the outer layer of skin for better hydration
Potential concerns
- May be comedogenic (potentially pore-clogging) in susceptible individuals, based on rabbit ear testing
Science: Research shows isopropyl isostearate improves skin's water-retention properties by modifying how lipids are organized in the outer skin layer, rather than simply coating the surface. However, it was flagged as comedogenic in animal studies, so those prone to breakouts should use with caution.
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