How to Use: Hot compress: Put the facial mask in the microwave oven (medium or low heat) and heat it for 10 seconds. The heating time can be extended if the mask is not heated, but it can not be set for 1-2 minutes at a time. Because the power of microwave oven is different, can adjust heating time appropriately, but cannot heat time too long. So as not to damage the goods.Cold compress: Method 1: Put the facial mask in the cold closet of the refrigerator for 30-60 minutes, take out the mask and rub it with your hands, then it can be used after reaching body feeling comfort. Method 2: Put the facial mask into the freezing chamber of the refrigerator for 15-30 minutes, take it out and rub it with hands, then it can be used after reaching body feeling comfort. Specification: Item Type: Gel Facial Mask Material: Gel Efficacy: Relieves fatigue Package List: 1 x Facial MaskAdjustable Size: Elastic band and hook and loop fasteners design can be adjusted according to the circumference of the head. Skin Friendly: Non-toxic gel pad is safe for you yo use and it is not easily to be broken or punctured. Health Care: Care for migraine, headache, swollen eyes, puffy eyes, dark circles, bags under eyes, muscle aches, insect bites, sunburns, stress relief. Multipurpose: Not only for the face, but also for the head, back, neck, shoulders, arms, elbows or wrists and it is also very useful for men. Hot and Cold Compress: Dual use of cold and hot, built-in gel ball, which is comfy and soft to make the facial mask more fit for your face.