Formaldehyde resin, dibutyl phthalate, and toluene can also cause allergic contact dermatitis. Camphor is an oil that has been long used as a topical remedy for various conditions, but can be toxic if consumed by mouth. Studies have shown that chemicals in nail polish can be absorbed into the body.
In this regard, is it bad to have nail polish on all the time?
The danger with keeping your nail polish on too long is that the pigment in the nail polish can soak into the top few layers of the nail and dry it out, Dr. Rowland says. When that happens, fungus, yeast, bacteria, mold and mildew can develop underneath the nail plate, which can lead to long-term problems.