Lip Stain by Sonia Kashuk??

Is it any good? I tried Revlon lip stains, but they really weren't that great. The inner parts of my lips would be darker then the rest, and it looked a bit funny. I'm not really looking for a pricy lip stain, I want a cheap one. So does Sonia's work well, or is it as bad as Revlons?Lip Stain by Sonia Kashuk??
If you want quiality, go for Benefit's Benetint.Lip Stain by Sonia Kashuk??
Im not sure, ive never triedit.

skin lightening