3 Free Nail Polish and Why You Might Care Even if You Don't Care.

What is 3 free nail polish?  3 free nail polish is Formaldehyde, Toluene, and Dibutyl Phthalate (DBP) free.  These chemicals are reported to have health risks and be bad for the environment.  I know there is some debate about the health risks.  I’m just a schmo who has no idea how to review the science, so I can't give an informed opinion.  There is more info in the link below.  Most nail polish formulas these days are now at least 3 free.  

Link with laymen info on the chemicals and contains links for more info
Link that lists 3 free (and more) nail polishes
In addition to the polishes listed in the link, Jordanna (at K-mart) is also 3 free.

Why you might care even if you don’t care?  Big 3 free top and base coats are not as common.  If you mix a non 3 free top or base coat with a 3 free polish, it could mean trouble.  If you use a toluene containing top coat over a 3 free polish, it may come off in large chips.  (*Light bulb appears over head .*  This may be my issue with Wet n Wild Gray’s Anatomy pealing off in sheets.)  If you use a base coat containing formeldehyde,  you may get yellow staining on your nails.  I believe this what was happening to me when I was using Rimmel Pro Top Coat/Base Coat as a base coat.  My nails looked like I was a chain smoker (I don't smoke).  The base coat didn’t react with every polish formula/color, so it took me a while to figure it out.    Essie, Zoya, Nubar and Carolyn New York top and base coats are 3 free.  
Link with info on mixing 3 free and non 3 free top/base coats and polishes.