Waterproof Formula
A waterproof formula refers to a type of product that is designed to resist the penetration of water, making it ideal for use in wet or humid conditions. This formula is typically used in cosmetics, such as mascara or eyeliner, to ensure that the product stays in place and does not smudge or run when exposed to water. It is often formulated with ingredients that create a barrier on the skin or lashes, preventing water from breaking down the product. Waterproof formulas are popular for activities like swimming, exercising, or in hot weather, where regular products may not hold up as well.