Buxom Twilight Tryst is a cool teal with a metallic finish that is permanent and retails for $12.00. In comparison, Natasha Denona Equilibrium (382M) is a cool teal with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Equilibrium (382M) is 85% similar — it is less shimmery, darker, more muted.