ColourPop Side Kick is a warm gold with a sparkle finish that is permanent and retails for $6.00. In comparison, Natasha Denona Fuse (257M) is a warm gold with a metallic finish that is limited edition and retails for $29.00.
Natasha Denona Fuse (257M) is 85% similar — it is more shimmery, lighter, cooler.
