Sodium Hydroxide, also known as caustic soda, is a highly alkaline, white solid available in the form of granules or flakes. It is one of the most widely used inorganic bases across numerous industries due to its powerful reactivity, solubility in water, and versatility in chemical processing.
In cosmetic applications, it is used in very low concentrations as a pH adjuster or saponification agent in soap-making. In industrial formulations, its strong alkaline nature makes it essential for neutralization, cleaning, processing, and chemical synthesis.