From the August 2010 issue of Oprah, page 199 (scan above):
Pick your polish wisely. Many salons use nail polish thinner when
their old polishes start to thicken with age. Thinners compromise both the color and integrity of the formula. If the bottle is less than three-quarters full,
ask for a new one, says Park. A freshly opened bottle of polish can make
your pedicure last weeks longer than an older, and potentially thinner-out,
That is the most ridiculous thing I have ever heard. Thinner does *not* compromise the color, at all. I can't imagine what a nail salon would say if a customer refused to let the the manicurist use a polish that was less than three-quarters full......
Anyone agree with me? Or am I crazy?