I don't think my face is black, but my skin is hurt. Did you use too much vinegar? Just a few drops in a big basin of water, too much will hurt the stratum corneum, which is counterproductive. And if you want to be less troublesome, use amino acid cleansing cream, which is mild and non-irritating, weakly acidic and lasting. If you add VC or arbutin, you can whiten your skin. I'm using it, very good ~