Steric Acid

Stearic Acid is a saturated long-chain fatty acid derived from vegetable oils (commonly palm or coconut). It is one of the most widely used raw materials in cosmetics and personal care formulations.

In skincare, Stearic Acid functions as an emulsifier, thickener, and stabilizer, helping to create creamy textures in lotions, creams, and body butters. It also enhances the stability of emulsions and improves product consistency. In soap-making, it provides hardness and a rich, stable lather.

Because it is versatile, safe, and effective, Stearic Acid is an essential raw material for formulators in cosmetics, personal care, and candle-making.

INCI Name: Stearic Acid

💧 Solubility

Insoluble in water

Soluble in alcohol and oils when heated

📊 Usage Rate

1% – 8% in creams, lotions, conditioners, and emulsions

3% – 10% in soap and candle formulations

🔗 Compatibility

Compatible with oils, butters, waxes, emulsifiers, and surfactants

Can be blended with cetyl alcohol, cetearyl alcohol, and glyceryl stearate for enhanced emulsification

⚖️ pH Level

Stable across most cosmetic pH ranges (4.0 – 9.0)