MAC Satin Taupe is a warm taupe with a frost finish that is permanent and retails for $17.00. In comparison, Natasha Denona Vintage (49M) (2019) is a warm taupe with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Vintage (49M) (2019) is 90% similar — it is more shimmery, darker.
