I switched to cold process shampoo bars about a month and a half ago, and ive ditched all store bought hair products.
I had an itchy scalp for part of the transition, but it's getting better now, and I've noticed my curls have gotten nicer! My hair is less stringy and the curls are more defined, and i love it!
I use a shampoo bar, rinse with 1 part apple cider vinegar to 3 parts water (i mix a little rosemary and lavender essential oils too, maybe some tea tree)
and i make my own curl gel made with flaxseeds (if you google flaxseed hair gel, a few recipes will show up)
what i love about the flaxseed hair gel is it doesnt dry super crunchy, it doesnt weigh my hair down, and i can scent it with whatever im in the mood for. The only downfall is the gel is kinda slimy and you gotta refrigerate.
It feels so good not to have to spend money on overpriced hair products!
check out the link above, there is alot of tips for natural hair care, and soap recipe's too!