Amino Bispropyl Dimethicone

Amino Bispropyl Dimethicone is a silicone-based polymer derived from siloxane chemistry. It belongs to a family of dimethicone derivatives—linear chains of silicon and oxygen atoms—modified with amino groups to enhance its conditioning properties. In cosmetic formulations, it functions primarily as a conditioning and emulsifying agent.

This ingredient is typically used at concentrations below 15% in skincare and haircare products. Its chemical structure allows it to form a smooth film on the skin or hair surface, which is the basis for its conditioning effects.

Amino Bispropyl Dimethicone works by depositing a thin, conditioning film on the skin or hair surface. The silicone polymer backbone is hydrophobic (water-repelling), which allows it to sit on the outer layers rather than penetrating deeply. The amino groups integrated into its structure enhance its substantivity—its ability to adhere to and condition the skin.

As an emulsifier, this ingredient helps bind oil and water components in formulations, preventing separation and improving the texture and stability of the final product. This dual functionality—conditioning plus stabilising—makes it useful in mixed formulations where texture and consistency matter.

Amino Bispropyl Dimethicone is a formulation ingredient rather than an active, so it is used as directed within finished products. Look for it in serums, moisturisers, and primers where a smooth, even texture is desired. It works well in combination with other conditioning agents and can be layered with other skincare products without concern for interaction.