The premium, silky-smooth, and non-sticky texture often found in high-end cosmetics, sunscreens, and face creams is largely due to silicone elastomer gels. IOTA 96460—with the INCI name Hydrogenated Polyisobutene (and) Dimethicone/Vinyl Dimethicone Crosspolymer—is a versatile ingredient designed to enhance the sensory profile of various cosmetic formulations.
It is a blend of a high-molecular-weight silicone elastomer and hydrogenated polyisobutene. Appearing as a colorless to translucent paste with a viscosity ranging from 150,000 to 350,000 cP, it contains at least 15% non-volatile content. Its gel structure prevents it from dissolving in the oil phase, allowing it to exist as a stable dispersion. It imparts a velvety, smooth sensation to the skin, offers mild sebum-absorbing properties, and leaves a dry, matte finish upon application.
This ingredient is environmentally friendly, with D4, D5, and D6 cyclosiloxane levels below 0.1%, aligning with the current industry trend toward low-cyclosiloxane cosmetic formulations. It is highly convenient to use, requiring no special heating—it can be processed at room temperature to thicken the oil phase and effectively eliminate any sticky or tacky feel. Compatible with water-in-oil, water-in-silicone, oil-in-water, and anhydrous systems, it is suitable for a wide range of applications, including skincare, sun care, color cosmetics, and hair styling products. The recommended usage level is 1%–20%, allowing formulators the flexibility to adjust the final skin feel as desired.