The reason why *anything* that permanently straightens the hair is going to be damaging is because it is breaking down the structure of your hair. Anytime you do that without a way to fill in or repair it permanently, the sturdy natural structure becomes weaker. I understand wanting to find a way around it, cuz I've been there :) but think of your hair like a fine garment. Like silk or cashmere (even as you comb, detangle and style it), it can easily break, if you pull to hard. So, imagine what kind of beating your hair is taking if you put something on it that can dissolve a soda can or take all the hair completely off in some cases (Nair hair removal uses the same stuff).