NARS Dolce Vita is a warm mauve with a cream finish that is permanent and retails for $26.00. In comparison, YSL Arlene's Nude (121) is a neutral mauve with a satin finish that is limited edition and retails for $38.00.
YSL Arlene's Nude (121) is 80% similar — it is lighter, cooler, less glossy.
