well when i want to do somthing like that for my hair, i make up a herbal rinse and add ACV. i only need a little bit and its somthing that always helps any hair problems i have so if i have a dry scalp, or i get quiet a few single knots it helps when my hair is dry. and i use it as a final rinse.

my hair: 3b, high porosity, high density and coarse hair (i think i finally figured that all out)
my hair loves conditioner only styling!
Oils and my own procuts are my hairs best friend
my hair goal length is bra strap length when curly.