it depends on what other products you are using too. polyquats are an example of an ingredient that some people have problems with, including myself. i would take a look at all your products and make sure there's nothing in there that the sulfate free shampoo won't take out. there are a lot of different cleansers in a lot of different sulfate free shampoos. some even claim to be sulfate free, but still contain harsh cleansers. what shampoo are you using?
2c-3a - med-coarse - normal-high porosity - high density

NP/LP: CJ Daily Fix, KMF Whenever / Giovanni TTTT
RO/LI: Sevi Pumpkin Seed, CJ Argan & Olive Oil, YTBbs
DC/PROTEIN: KC Stellar Strands / CNPF
STYLER: Ouidad Climate Control, SS Firm Hold Gel
COLOR: henna, amla & indigo
: glycerin in high/low dews, polyquats, parabens