BRW CHEAT BLACK BROWN. Features: This eyebrow pencil will help you achieve natural-looking, hair-like strokes that last up to 16 hours. It is formulated with a blend of waxes and powders to provide a natural, long-wear finish.. Key Ingredients: Carnauba Wax: Gives stretch and elasticity to brow hairs for a smooth and creamy application.. Micro-crystalline Wax: Helps the easy-to-use, blendable texture glide on.. Pure Pigments: Create natural-looking color with depth and no ashy undertones.. Research Results: *Tested on 30 people:. 16 hour wear. Waterproof. Smudge & humidity proof.