Cooling Mask Patch Hot Cold Gel Pack Beauty Relax Medical Facial Skin CareUse: Heat: put the mask eyepatch into 60 warm water for 5 minutes or micro wave oven for 30 seconds. Cool: put them into refrigerator for 30 minutes. Washing the face before use, (then rub on skin care products usually we use)As tight as the face. 10 15 minutes using as you need. Stored in shade and unventilated. NOTEPls test temperature before using! Pay attention not hurting your skin! Features&SpecificationsThe MaskReusableWith adjustable strapCan