Buttercup Powder is completely flash-friendly, so you won't get any ashy flashbacks in bright lighting, photos, or selfies. Mattifying, the lightweight, yellow-based powder does not turn orange, look chalky, or feel cakey after setting. Ideal for “baking” or setting your foundation, concealer, and highlights. Buttercup Powder is completely flash-friendly, so you won't get any ashy flashbacks in bright lighting, photo,s or selfies. Mattifying, the lightweight, yellow-based powder does not turn orange, look ch, alky, or feel cakey after setting. Ideal for “baking” or setting your foundation, concealer, and highlights. Buttercup Powder is completely flash-friendly, so you won't get any ashy flashbacks in bright lighting, photos, or selfies. Mattifying, the lightweight, yellow-based powder does not turn orange, look chalky, or feel cakey after setting. Ideal for “baking” or setting your foundation, concealer, and highlights. Buttercup Powder is completely flash-friendly, so you won't get any ashy flashbacks in bright lighting, photos, or selfies. Mattifying, the lightweight, yellow-based powder does not turn orange, look chalky, or feel cakey after setting. Ideal for “baking” or setting your foundation, concealer, and highlight