A: Our brushes are shipped with a starch mixture applied to the bristles to ensure their shape is held until you are ready to use them. It's extremely important to prep your new brush(es) properly before use: Gently work the bristles back and forth using a lint-free wipe, piece of paper towel, or a clean orange wood stick to gently break up the starch. While doing this, you will notice small particles falling from the brush head, continue working the brush head back and forth until there are little to no particles falling. Once the starch is free from the brush, prep your new Gel Brush by working the brush head back and forth in a small amount of Clear sculpting gel to "season" the bristles. Gently replace the cap after each use to avoid any exposure to UV/LED light.