For me, product buildup (which is generally from polyquats) makes my hair feel coated and it doesnt shine as much as if it were clean. The curls are limp and dont form properly, they look fuzzy. It just feels COATED if that makes sense. hehe.

Whereas with protein, it doesnt FEEL coated so much. Instead the hair is just incredibly dry even if youre using a moisturising conditioner (that contains proteins...) My curls still formed ok although there was more frizz, although it wasnt the fuzz i get with product buildup.

Product = lank, almost greasy, no texture.
Protein = straw-like dryness, frizz.

cleanse: OS shampoo. PureNuffStuff cleanser.
condition: Aussie 3MM. Jessicurl Aloeba.
style: B2Basics GreenTeaGel. T&G Curl Balm. JCarter Nourish&Shine.

pw: curlywurly