I'm fine and low porosity as well and kccc is by far one of my favorite products. There is a learning curve with it, and a little goes a long way. one jar lasts forever. I feel like that in itself helps my waves since there's so little product in my hair, it doesn't weigh it down. That being said I don't use it by itself i use it almost like a curl enhancer. Some people think the hold is strong and use it alone, some do not. For me I use maybe a dimes worth biosilk gellee over it on day one for more hold especially if I diffuse. As to your other concerns, I don't believe it has oils in it, and i know it doesn't have polyquats but it does have aloe which bothers some curlies. HTH
~Curly, Runner, Self-confessed Nerd~

2a no product/2b-c styled
Low Porosity, Fine
No poo-SM
Co wash-VO5 kiwi lime*
Rinse out- ION EC
Leave in - Giovanni Direct then SM smoothie (ends only)
Stylers-SM souffle topped with BRHG*

Hair hates: glycerin (high dews here in TX)
Hair likes: Coconut Oil*, protein