Lethal Cosmetics Inertia is a cool teal with a matte finish that is permanent and retails for $6.50. In comparison, ColourPop Runnin' Thru the Six is a cool teal with a satin finish that is limited edition and retails for $6.00.
ColourPop Runnin' Thru the Six is 85% similar — it is more shimmery, cooler.