Create your own line of lip balm with YOUniverse Color Change Lip Balm kit! Mix and match the out-of-this-world fruity flavors to create tie-dye or color block lip balms. Apply the lip balms to your lips and see what color is revealed! The color change gel base turns a shade of pink or red that is unique to you based on your pH levels. Explore the science behind color and pH color change while creating up to 5 shimmering lip balms. The perfect activity for a science lover's slumber party or a girl's night in!