Cyclotetrasiloxane functions as a skin-conditioning, hair-conditioning agent, and solvent in cosmetics. It is a four-unit long, cyclic structured, extremely light silicone that is the little sister of the longer, more widely used Cyclopentasiloxane, which is a five-unit long, cyclic structured silicone. It is a 'volatile silicone,' meaning it evaporates off the skin and hair rather than remaining there.
- Skin care: It has amazing silkiness and excellent spreading characteristics, just like other silicones. In order to achieve distinctive sensorial properties in the formula, it is frequently blended with other silicones. It is used to make cleaning solutions, surfactants, cosmetic products, and polishes. It is used up to a concentration of 19% in skincare products. Overall it can be used at a concentration of 0.0007-28%