Natasha Denona Glam (321M) is a warm taupe with a sparkle finish that is permanent in palette and retails for $29.00. In comparison, Give Me Glow Nirvana is a warm taupe with a metallic finish that is permanent in palette and retails for $7.00.
Give Me Glow Nirvana is 90% similar — it is more shimmery, cooler.