Our hair is curly because of the sulphur bond of our hair. Rebonding simply break down the sulphur bond by heat and chemicals. During rebonding, keratin is added but it is only left on the surface of the hair instead of being the internal part of the hair naturally when it grew. Interferon alpha is a drug used to modify hair follicles and is used in rebonding but it only damages the hair texture. Neutralizers are used to stabilize the hair. A lot of money and time is needed to put in to maintain a rebonded hair. For example, it needs to be oiled, and it has to be redone whenever our hair grow to touch up any unneccessary curls.