Silica Dimethyl Silylate

Silica Dimethyl Silylate is a hydrophobic fumed silica that plays an important function in cosmetic formulations: thickening oils and suspending particles in them-be it for stability or texturing. Hydrophobic means that this ingredient repels water; thus, it is particularly useful in oil-based formulations, such as lip glosses and oil serums, or in makeup products where a smooth, even texture is required. One of the main advantages it can provide is increasing the shine and glossiness of castor oil since, in general, it has just become widely in demand for lip products and high-shine cosmetics.
Silica Dimethyl Silylate functions in many ways within cosmetic formulations beyond just thickening and adding gloss. It acts as an anti-caking agent, thereby preventing agglomeration or the formation of lumps in powder-based products through easy flow. It has antifoaming properties that come in handy during the manufacture or application of formulations with unwanted foam in products. As an emollient, it also gives the skin a silky, soft feel and enhances the sensory experience. Additionally, as an emulsion stabilizer, it helps in preventing oil and water phase separation in emulsions. It also serves as a viscosity control agent wherein the formulator will have control over the thickness and flow to provide good performance and application to the product.
Silica Dimethyl Silylate is prepared chemically by the reaction of dichlorodimethylsilane with silica to give a finely divided, extremely stable material that is versatile and very effective in enhancing the performance of a wide range of personal care products. With its great added value in improving texture, stability, and sensory appeal, this ingredient plays an important role in a wide variety of skincare and makeup products.