Function and Purpose

Stabilizers are essential additives that ensure personal care products remain physically and chemically stable throughout their shelf life. They prevent separation, preserve ingredient activity, maintain color integrity, and inhibit microbial growth. This guarantees consistent performance, safety, and overall quality from production to end use.

Common Types and How They Work

Stabilizers operate through three main mechanisms:
● Thickeners and rheology modifiers (like carbomer or xanthan gum) create a structural network to stabilize emulsions.
● Emulsifiers (such as lecithin) reduce oil-water surface tension for uniform blends.
● Chelating agents (like EDTA) bind metal ions to prevent oxidation and reactions.

Applications

Different products require specific stabilization approaches.
● Creams and lotions rely on emulsifier systems, while serums often use polymer-based thickeners.
● Sunscreen formulas combine photostabilizers with antioxidants.
● Clear products use stabilizers that maintain transparency.
● Selection depends on compatibility, sensory feel, and regulatory compliance.