In case you’re interested, the material in these refills is (as far as I can tell) the same stuff being sold over on Woot Flash Deals as “IBD Clear Gel Builder” at $21.99 for 2 ounces, which is about 7 refills. So if you’re after convenience, this is probably the better deal, but if you just want a small vat of the stuff, I’d get the Clear Gel Builder instead.
WHAT THE HELL IS THIS IN THE FIRST PLACE? LOL
It’s a resin that’s cured by ultraviolet light. Your dentist uses it, and those folks at the nail salon use it. It also makes a handy welding material for plastics