5. You’re exposing yourself to harmful chemicals.
Some treatments have been discovered to contain formaldehyde, a carcinogen that can cause breathing problems and skin irritation. We repeat, this only applies to some products. That said, OSHA issued a warning in 2011 and a more recent study has found that it’s still a problem in some salons without proper ventilation. Yeah, we don’t like the sound of that either. Some experts argue that formaldehyde is actually only a concern for those who come into contact with the chemical regularly, like hair stylists and salon technicians. But even so, ask yourself if the pro is really worth risking the potential cons.