The Self Nanoemulsifying Drug Delivery System (SNEDDS) is a novel drug delivery system that improves the water solubility of drugs that aren't easily dissolved in water. It is an isotropic mixture of oil, surfactant, and cosurfactant particles, as well as a codissolvable atom. Its drug delivery system is both thermodynamically and actively stable. Under gentle fomentation, the drug conveyance framework is trailed by weakening of watery medium, such as GI liquid, and it can come from stable O/W Nanoemulsion. Globules with a diameter of less than 100nm. It is an important type of drug delivery system for maintaining the substance's solidity as well as dissolvability. The Self Nanoemulsifying Drug Delivery System (SNEDDS) is a significant application on BCS Class II and Class IV drugs for upgrading ineffectively water soluble drugs.

Keywords : Nanoemulsion, Mini-Emulsion, Submicron Emulsion, Surfactant, Self-Emulsifying System and Pseudoternary Phase.