Changing hair styles from curls and waves to sleek and straight hair requires an effective hair treatment like keratin, protein or rebonding. With Keune Keratin Straightening Rebonding System creating long lasting and shiny straight hair is not a problem anymore. The Strong formula is developed to reform thick, curly and high-maintenance hair. It features safe rebonding technology that makes the hair go through complete transformation. Their texture changes to smooth and straight, while their surface appears shiny. The effects last for up to 5 months. The kit includes a neutralizer too to help prepare the hair for the change in shape and texture.