Dr. Brown. Hauschka Defining Mascara separates and defines each lash, offering a natural and expressive look . Dr. Hauschka mascara: defined lashes with a natural look Dr. Hauschka mascara covers and defines each lash for a striking look. The 100% natural recipe with mineral pigments, plant extracts, especially eyes, castor oil and beeswax nourishes and nourishes the eyelashes, positively affecting their condition. Highlight your natural beauty with Dr.. Hauschka mascara.