A two-fer today – this is Most Sinful, which is a bright blue creme (that doesn’t have that blue-polish stink), and Blue By You, which is an almost-transparent blue with green? sparkle. Most Sinful is the SinfulShine “gel” version of regular old Sinful Colors Endless Blue. I think Endless Blue applied better even though it did stink, if I remember correctly. I used three coats of Most Sinful and one coat of Blue By You. I do have to say Blue By You applied flawlessly – I didn’t have to do any fudging to get the sparkle to apply evenly.