It is not toxic, but it's probably bad for the skin. How bad depends entirely on how often you do it. Mopping with it probably isn't great for the skin. If you are mopping with it once a week, it might not be a big deal. Mopping with it every day could cause problems. Gloss is just a solvent, so it's going to dry out your skin. All in all, I don't think it is too bad, but you might want to use gloves when doing it.
