PURA D'OR Clinically Formulated Biotin Shampoo comes in a 16 oz size and is offered under the Pura d'or brand. This listing is for the Standard option, SKU code 604.
I've struggled with a flaky, itchy scalp for years and after about three weeks of washing with this the irritation has calmed down a lot. The lather is thinner than typical supermarket shampoos but it rinses clean without leaving my hair feeling stripped. A 16oz bottle has lasted me almost two month
The 16oz bottle is huge for the price, and a little goes a long way — my hair feels noticeably thicker after a month of using it daily. The biotin formula lathers up nicely without stripping my color.
My scalp felt calmer after about two weeks of using this, and the 16 oz bottle has lasted me way longer than my old drugstore shampoo. It lathers decently for something without sulfates, and I've noticed less shedding in the shower drain.