The extensions basically come under two types of material: synthetic hair and natural hair. The synthetic hair extensions are made artificially and are coated with the silicon to give external shine. The natural hair extensions are 100% natural REMY Human hair. There are many types of hair extensions available nowadays. But most of the common types of hair extensions that are available in the market are I Tips, U Tips (Fusion), Tape in, Wefts, and Clip-in hair extensions.