Bad Habit Siren is a cool gray with a satin finish that is permanent in palette and. In comparison, NARS L'Amour, Toujours L'Amour #4 is a cool gray with a matte finish that is discontinued and retails for $25.00.
NARS L'Amour, Toujours L'Amour #4 is 80% similar — it is less shimmery, darker.