Our Powder Roller massager set contains powder crystals. It can be mildly mineral and has a soothing effect. Soft to touch, comfortable to use; Helps skin care products penetrate the skin better. Its use method is very simple: 1. Please refrigerate the tool before use. 2. Use a mask, facial oil, serum or moisturizer; 3. Use a slow speed and an upward and outward movement of the face roller. 4. Use large and small hair curlers on different parts of your face; 5. Using a scraping massage tool, move upward from the neck, using light to medium pressure; 6. Clean tools after and before each use. Roll gently to relieve tension in your facial muscles. Fits the face shape and improves the facial line.