Bobbi Brown Electric Sapphire is a cool blue with a sparkle finish that is limited edition and retails for $38.00. 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 80% similar — it is less shimmery, warmer.
