MAC Lust Extract is a cool fuchsia with a luminous finish that is limited edition and retails for $17.00. In comparison, YSL Mauve Nihiliste (58) is a warm purple with a pearl finish that is permanent and retails for $38.00.
YSL Mauve Nihiliste (58) is 80% similar — it is darker, more muted, warmer, less glossy.