Nouba Brow Powder Waterproof - Eyebrow Powder Pencil Waterf. No. 4. Fine eyebrow powder in pencil form that accentuates the brows and frames the face. The soft latex sponge allows for easy application and shapes the eyebrows. Long-lasting, waterproof, and dermatologically tested. It can also be easily used as eyeshadow. Micronized pigments and spherical powders ensure easy application and long wear. Application: Fill in and define the eyebrows with the Nouba Brow Powder.