ColourPop Sherbert Day is a cool fuchsia with a sparkle finish that is limited edition and retails for $5.00. In comparison, ColourPop Solstice with the Mostest is a cool fuchsia with a sparkle finish that is permanent and retails for $4.50.
ColourPop Solstice with the Mostest is 90% similar — it is lighter, brighter, cooler.