ColourPop Peeps Lavender is a warm lvaender with a sparkle finish that is limited edition and retails for $6.00. In comparison, Natasha Denona Duet (431DC) is a warm lavender with a metallic finish that is limited edition and retails for $29.00.
Natasha Denona Duet (431DC) is 85% similar — it is more shimmery, warmer.