Re: What makes a nail polish less likely to chip than others?

Nail polish is a complicated mixture of chemicals, as are things like paint 
and red wine, and so it is hard to say that one chemical in the mixture 
gives the overall mixture a certain characteristic.  Nail polish  is 
usually a set of colored dyes dissolved in chemicals called solvents that 
evaporate upon drying on your nails.  Chip-proof nail polish probably 
contains other chemicals that bond together like cement so that they are harder 
than normal nail polish, which only contain the chemicals that give it 
color.