The Rio Dermaroller uses high energy red light and cosmetic micro skin-needling to stimulate the natural production of collagen in your skin. This gives natural firmness and tone, creating smoother, brighter and more refreshed looking skin. The Dermaroller is suitable for use by both men and women and can be used on acne scars, aged and sun-damaged skin, facial lines, wrinkles and stretch marks. The cosmetic micro skin needling process uses 0.2 mm micro needles and the treatment increases skin absorption for softer, smoother and healthier skin.To use the Dermaroller, first cleanse to area to be treated with a mild soap free cleanser. Switch on the red light at the base of the unit then roll over the area four times in each direction–vertically, horizontally and in both diagonals. Be careful not to apply pressure and avoid the delicate areas around the eyes and lips. Rio recommends waiting three hours before applying any make up or other skin treatment creams to avoid irritation.Ensure skin is clean and dry before treatment and relax and take your time. It is useful to have a mirror if working on the face or harder to reach areas. It is better to carry out treatment at night so that any skin redness has time to fade. Sterilisation using the tablets included must be carried out before and after each use.