Sodium Lauryl Sulphate (SLS), chemically known as sodium dodecyl sulfate, is a high-performance anionic surfactant characterized by excellent foaming, wetting, emulsifying, and detergency properties. It is one of the most widely used surfactants globally, with applications spanning personal care products, household detergents, industrial cleaners, and pharmaceutical formulations.

1. Chemical Identity

2. Core Industrial Applications

SLS’s balanced surface-active properties make it a staple ingredient in numerous products:
Personal Care & Cosmetics (Largest Application)
Key component in shampoos, body washes, toothpastes, facial cleansers, and bubble baths. It acts as a primary foaming agent and cleanser, effectively removing dirt, oil, and impurities from skin and hair. Cosmetic-grade SLS complies with FDA and EU Cosmetic Regulation standards.
Household Detergents
Used in laundry powders, liquid detergents, and dishwashing liquids. Enhances cleaning efficiency by emulsifying grease and suspending particulate dirt, even in hard water. Often blended with nonionic surfactants to improve performance.
Industrial Cleaning Agents
Formulated into heavy-duty degreasers, metal cleaning fluids, and textile scouring agents. Effective for removing oil, grease, and wax from machinery, metal surfaces, and textile fibers. Also used as a wetting agent in pesticide formulations to improve spray coverage on crop surfaces.
Pharmaceutical & Biomedical Fields
Serves as a solubilizer, emulsifier, and drug delivery carrier in oral and topical pharmaceutical formulations. In biotechnology, it is used as a lysis buffer component to break down cell membranes for protein extraction and purification.
Other Uses
Emulsifier in emulsion polymerization (e.g., for producing latex, paints, and adhesives); additive in battery electrolytes to improve conductivity; component of photographic developers.
Transport: Comply with UN 3082 transport regulations. Use sealed, moisture-proof packaging. Label packages with “ENVIRONMENTALLY HAZARDOUS SUBSTANCE” warnings. Avoid transport in rainy or humid conditions.