D5（十甲基环五硅氧烷）

D5 (Decamethylcyclopentasiloxane) is a cyclic siloxane used as a solvent and emollient in the cosmetics industry. It is known for its excellent spreading properties and ability to provide a silky, smooth feel. This product is widely utilized in personal care formulations such as skin creams, lotions, and hair care products. D5 also serves as an effective carrier for other ingredients, enhancing their performance and application.