Hi everyone

I've been using different creams & lotion with supposedly containing Hydroquinone. But they don't work! (only a lemon fragranced one made by a company in Glasgow, Great Britain which is no longer available). I now want to try making my own.

I was wondering (after reading Deloress' answer), how much Hydroquinone crystal 8%, do you add to a tub of cream 500ml size?