keratin treatment will NEVER damage ur hair. it's supposed to be GOOD for ur hair and the more u do it the better.
I myself get japanese straightening all the time and that yes, it's damaging to ur hair but any stylist who knows what they are doing will avoid applying the straighteting perm chemicals over ur whole head for a long period of time. He usually washes off the ends after 5 minutes and keeps the rest of the head covered with them.
anyway, neither treament will work well if u have a severly layered haircut. I know this from first hand experience. Your hair will be spikey like Ashley green on the twilight series no matter how u straighten it.
also, the difference with japanese straightening is that he japanese method "kills" ur hair making it STAY straight so it's permanent. Keratin washes off with the wrong shampoo and has a lifespan because it's a coating.
so u can do as many times as u want and it will NOT damage ur hair.
HTH
I myself get japanese straightening all the time and that yes, it's damaging to ur hair but any stylist who knows what they are doing will avoid applying the straighteting perm chemicals over ur whole head for a long period of time. He usually washes off the ends after 5 minutes and keeps the rest of the head covered with them.
anyway, neither treament will work well if u have a severly layered haircut. I know this from first hand experience. Your hair will be spikey like Ashley green on the twilight series no matter how u straighten it.
also, the difference with japanese straightening is that he japanese method "kills" ur hair making it STAY straight so it's permanent. Keratin washes off with the wrong shampoo and has a lifespan because it's a coating.
so u can do as many times as u want and it will NOT damage ur hair.
HTH