NARS L'Amour, Toujours L'Amour #7 is a cool taupe with a matte finish that is discontinued and retails for $25.00. In comparison, MAC Brains & Brawn is a cool taupe with a matte finish that is limited edition and retails for $17.00.
MAC Brains & Brawn is 90% similar — it is darker, cooler.