Arghh choices!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ok
since i am on a tight budget, i cannot afford those salon line brands shampoo n conditioner which is very good according to many satisfied hairboutique fans, but i a person who reads the ingredients first instead of the brand. I do have some knowledge in buying them. you know buy the gentle sodium laryth sulphate although many company are making claims that it causes cancer?? yeah i would get cancer if i was a small rat bathed n fed with hight concentrates of it :)
but really what are other ingredients to watch out for?
i mean what does a person do if the person has relaxed, colored, dandruff hair that is exposed to sunlight every single day of the year and has dandruff plus the person uses a heck of a lot of styling products. and that person is me. so HELP