Originally Posted by MistySkebo /img/forum/go_quote.gif
Or a little nail Polish remover.
Originally Posted by zadidoll /img/forum/go_quote.gif
You don't add nail polish remover to a polish or top coat to thin out. Doing so breaks down the formulation so the product becomes degraded. The only reason it "works" is because it's breaking down the formula. It's better to get a nail polish thinner since it's not that expensive in the first place.
Originally Posted by MistySkebo /img/forum/go_quote.gif
I didn't know that.my friend told me this 18 yrs ago.that's why I said that.by bad.
It's a common misconception, because it works temporarily. But it will ruin the polish, since like zadidoll said it is breaking it down. I learned this on makeuptalk.com, too. I like the explanation below.
Source:
http://www.typef.com/article/nail-polish-remover-vs-nail-polish-thinner/
Purpose of Remover Versus Thinner The purpose of remover is to dissolve the nail polish on your nails. With the nail polish broken down, you easily can wipe it off. Thinner, however, is used to make nail polish the right consistency for application. To get a little more scientific, manufacturers say nail polish thinner "improves viscosity," which is just a fancy way of saying the nail polish flows better.
Chemical Breakdown Technically, both nail polish remover and thinner are solvents. Both can contain ingredients such as butyl acetate, isopropyl alcohol and ethyl acetate. However, unless you're buying remover that's safe for fake nails, most fingernail polish removers also contain acetone. This chemical is quite harsh -- the "big gun" of remover solvents. Removers also can contain water. This means that removers and thinners are usually not interchangeable, because even when the same ingredients are present, they are in different proportions.
Using Remover to Thin Polish Many people believe it is helpful to pour some nail polish remover into the bottle to thin old, gooey or dried-out nail polish. This isn't the case. If the nail polish remover has acetone or water, which virtually all do, it may thin the polish initially, but the polish will chip much more easily on your nails and will take an eternity to dry. Over time, the remover will break down the polish in the bottle, making a goopy mess you'll have to toss.
Why There's a Problem Nail polish, similar to thinner or remover, contains solvents. Without the solvents, your polish quickly would dry up. It is the quick evaporation of the solvents that make nail polish dry on your nails. When nail polish gets thick and you add thinner, you are putting back the solvents that have been lost through evaporation. When you add remover, you add some solvents, too, but the solvents go too far, breaking down the polish.