The only thing I know works, is a vitamin pill from holland and barrat called 'super one' every time I run out I notice my hair getting thinner and can see my shiny scalp. They are expensive but i honesly wouldnt be without them, Takes a month or two but they work. Also, a good thing to make hair look thicker is dry shampoo, bristees one. It will help dry the oil too so you won't have to wash so often.
Nizarole shampoo has anti androgen properties. Would be better for ladies with pcos.
I was a hairdresser for years and tried so many products and thickeners, but these are only ones I swear by.
Hope this helps someone.
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