Diethyl Phthalate (DEP)

Diethyl Phthalate (DEP) is a widely used fixative and solvent in perfumery and cosmetic formulations. This clear, odorless liquid is valued for its ability to dissolve fragrance materials, stabilize aromatic compounds, and extend the longevity of perfumes and scented products.

In fragrance formulation, DEP acts as an effective carrier and fixative, helping volatile aroma compounds evaporate more slowly and evenly. This results in improved scent diffusion, better stability, and longer-lasting fragrance performance in products such as perfumes, body sprays, deodorants, and scented cosmetics.

Because it is odorless and chemically stable, DEP does not interfere with the natural aroma profile of essential oils, aroma chemicals, or fragrance blends. Instead, it enhances the overall balance of the formulation by improving the solubility and distribution of fragrance ingredients.

DEP is commonly used in fine fragrances, body sprays, deodorants, lotions, and other personal care products, where it functions as both a fragrance solvent and a stabilizing agent. Its compatibility with essential oils, aroma chemicals, and alcohol-based solutions makes it a versatile ingredient in both professional and DIY perfume creation.

At HERBOLOGY, our Diethyl Phthalate (DEP) is supplied as high-quality perfumery-grade material, ideal for improving fragrance stability and extending the life of perfume formulations.