Kelpie Aurora Night is a duochrome nail polish with color shifting shimmer and iridescent glitter in a cool black jelly base, and is meant to be opaque in two to three coats, although it can be layered to preserve the polish. It contains iridescent glitter that shifts turquoise to light blue through violet, with the addition of the same color shifting pigment used in all of Starlight and Sparkles' Kelpie polishes, which shifts from teal to violet, and flashes aqua and purple at the extremes of its color range. 

Kelpie and Unicorn share similar spectrums of color shift, but Kelpie is bluer than Unicorn and its shift goes further into purple than Unicorn's does.

The base color of the Mythological Night polishes was originally developed for a custom polish named Onyxia, and the customer who commissioned it was kind enough to give permission for the base color to be used for other Starlight Polishes!

Rather than offering sets, purchasing four or more bottles of polish from the Mythological line in a single order will give a discount of 3.5% on all Mythological polishes in the order, which will be reflected in the cart under the line "Mythological line discount."

The last photo shows what Starlight Polish 15mL and 7.5mL bottles look like.

This polish contains a "unicorn pee sibling" pigment, which are pigments of the same sort as "unicorn pee" but with different color shifts.