Eyelash extensions so what39s this all about eyelash extensions are one of the fastest growing beauty treatments both in the uk and internationally semi permanent eyelashes enhance your natural lashes by adhering a silk or mink lash to each natural eyelash using the finest medical grade adhesive that is eu compliant and comes with an allocated iso number light comfortable natural and available in various curls lengths and thicknesses our eyelashes are made of the highest quality mate