It takes me 1-1/2 months to go thru Curls Asian Hair Tea Conditioner easily, which is my "staple" conditioner. And that stuff is 16 ozs.
"Curls Tester"
Products in my current regime: Nioxin Scalp Therapy Shampoo, ORS Replenishing Pak, Curls Whipped Cream, Curls Souffle, Curls Spiral Curls Cream, Curls Milkshake, Curls Quenched, BB(Bonner Brothers) Growth Lotion