My PQ problem was with PQ4 as the 2nd ingredient in a gel. However, one of my favorite gels has PQ10 (I think!) as one of the top ingredients and I don't have a problem with, who knows!!!???
2C/ Coarse/ Normal porosity/ SW Florida/ Salt & Pepper
Cleanse: AIA cowash, TJ Tea Tree Condish
Condish: JC Too Shea, Tresemme Botanique
Stylers: flax/okra gel or KCCC + CJ PP or JC Spiralicious
Experimenting with Got2B Ultra gel and loving it so far!