Stearic Acid-Emulsifier.

Stearic acid is used in skincare as a thickener, emulsifier, and occlusive barrier. It helps bind oil and water together, improves product texture, and locks in hydration by preventing moisture loss. It also acts as a gentle surfactant in cleansers.

Stearic acid is used in candle making to improve the overall quality of wax. It acts as an excellent wax hardener, mold release agent, and opacity enhancer, making it particularly popular for creating sturdy pillar, votive, and freestanding candles.