It´s healthy if you use good products.
There´s something that most of you say all the time "the skin breathes". Skin doesn´t breathe the way the lungs do, our face doesn´t need contact with the air to "breathe". Blood does "clean" the skin as it does with the rest of the organs. So, even if you put make up every single day, yourskin is going to receive oxygen the same way that if you go bare face. Don´t worry about that, it´s something people say everywhere in forums, blogs...But it´s totally wrong.