Pat McGrath Interstellar is a cool purple with a sparkle finish that is limited edition and retails for $25.00. In comparison, Obsessive Compulsive Cosmetics Technoir is a cool blue with a frost finish that is discontinued and retails for $14.00.
Obsessive Compulsive Cosmetics Technoir is 85% similar — it is less shimmery, darker, more muted, cooler.
