I was wanting to know how you test for mercury or hydroquinone in made up monobenzone creams? I know you can test mono powder in alcohol, but what do you with creams to test?
Im using a new monobenzone cream and I've lightened 2 shades in 1 week and am cautious about that, because I don't think mono is supposed to lighten that quickly, so I'm thinking it may be mercury or something?
Anyone know how you can tell what's in your creams?