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DEHYDROACETIC ACID

Description

Dehydroacetic acid (DHA) is a synthetic preservative widely used in cosmetics and personal care products. This white, crystalline powder is prized for its broad-spectrum antimicrobial activity, effectively inhibiting the growth of bacteria, yeasts, and molds. DHA's chemical structure allows it to function optimally in slightly acidic to neutral pH environments, making it compatible with a wide range of formulations.

In skincare products, DHA is typically used at concentrations between 0.1% and 0.6%, depending on the formulation and regulatory requirements. It is particularly valuable in water-based products, where microbial contamination is a significant concern. DHA's effectiveness is enhanced when combined with other preservatives, creating a synergistic effect that broadens the preservation system's efficacy.

While DHA is generally considered safe for use in cosmetics, some individuals may experience mild skin irritation. It is important to note that this ingredient is different from dihydroxyacetone, the active component in self-tanning products. Dehydroacetic acid's stability, low odor profile, and compatibility with other ingredients make it a preferred choice for formulators seeking to extend product shelf life while maintaining aesthetic appeal and efficacy.