Application of surfactants in cosmetics

Surfactants are widely used in various cosmetics as emulsifiers, penetrants, detergents, softeners, wetting agents, bactericides, dispersants, solubilizers, antistatic agents, hair dyes, etc. Nonionic surfactants are the most commonly used in cosmetics because they are non-irritating and easily compatible with other components. They are generally fatty acid esters and polyethers.
The composition of cosmetic formulas is diverse and complex. In addition to oil and water raw materials, there are also various functional surfactants, preservatives, flavors and pigments, etc., which are multi-phase dispersion systems. As cosmetic dosage forms and functional requirements increase, the types of surfactants used in cosmetics are also increasing. Surfactants used in cosmetics should be non-irritating to the skin and have no toxic side effects. In addition, they should also meet the requirements of being colorless, having no unpleasant odor and having high stability.