Preservative

A preservative is an essential ingredient in most cosmetic products, particularly those containing water, designed to inhibit the growth of harmful microorganisms like bacteria, mold, and yeast. Their primary function is to ensure product safety for the consumer and extend shelf life by preventing spoilage, color changes, and undesirable chemical changes. Common examples include parabens, formaldehyde-releasers, and organic acids, which must meet strict regulatory standards.