Kosas BB Burst Tinted Gel Cream in 21 N. Kosas BB Burst Tinted Gel Cream in 21 N. A clean, tinted gel cream that?s a fresh take on tinted moisturizer-it delivers a refreshing burst of active skincare, light buildable coverage, and a smooth, hydrated, natural finish.. In 21 N - light medium with neutral undertones. Vegan and cruelty-free Free of silicones, gluten, mineral oil, fragrance, and parabens. Copper Peptides support collagen to visibly plump and firm Saccharide Isomerate and Sodium PCA smooth, hydrate, and support skin barrier. 30 ml / 1 fl oz. Let your skincare fully absorb and then apply with fingers like a tinted moisturizer.. Build to desired coverage level.. KOSA-WU262. 28_08. Makeup for skincare freaks. Sheena Yaitanes created Kosas in 2015. It's quick, easy, really-works makeup that also doubles as skincare - packed with clean treatment ingredients. Because taking care of your skin includes the makeup that you put on it.