What it is: A brush that hugs the contours of your face to seamlessly buff Stretch Foundation and Concealer (each sold separately) into skin. Brush Formulation: Liquid / Cream Bristle Type: Synthetic Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also vegan, gluten-free, cruelty-free, and comes in recyclable packaging. What Else You Need to Know: This brush’s curved design hugs the contours of your face, while its targeted tip blends hard-to-reach areas for easy application and a seamless, streak-free finish. It features soft, dense bristles made from undyed, synthetic hair with a protective swivel cover so you can toss it in your bag and go.