OUR PRODUCTS ARE APPROVED BY THE MINISTRY OF HEALTH AND HAVE ALSO RECEIVED ISO 9001 QUALITY CERTIFICATE. USE OF OUR SET IS 1 EVERY 2 NIGHTS. WE GIVE THE VITAMIN WITH A MASSAGE BEFORE BED-UP, THEN WE PASS 2 ROUNDS WITH THE DERMAROLLER. IT IS ENOUGH TO USE THE ROLLER 1 OR 2 TIMES A WEEK. WE WASH IT WITH OUR SHAMPOO AND CONDITIONER IN THE MORNING. YOU CAN USE OUR SHAMPOO REGULARLY, IT DELAYS OILING AND GAINS SOFT TEXTURE.