The distance of migration is inversely correlated with the molecular weight of the protein (small proteins move faster through the gel than large proteins do and therefore migrate further down the gel).
Essie Gel Couture Nail Polish. Essie Gel Couture Nail Polish. $12 each BUY NOW. When Essie upgraded their bottles to this angular form, we all kind of lost it. Take a step toward couture, the popular drugstore brand that looks and feels anything but has released a gel-finish polish that packs a long wear and ton of shine.
Although gel manicures are generally only done in salons, OPI and CND are both pushing at-home versions. The polishes are expensive (think $20 a bottle) and the U.V. lights used in salons can cost $600. (The at-home versions start at around $40.) A gel manicure can last up to 20 days.