1.Wash your skin with warm water.
2.Soak the top of the applicator vial about 5-8minutes with 75% alcohol.
3.Put the essence of the liquid into the liquid bottle and gently shake it for 2-3 times to wash the liquid bottle.
4.Remove the safety and hygiene cover.
5.Roll the skin surface with the hydra needle gently until the essence of the liquid is fully absorbed by the skin.