neuBROW brow enhancing serum is an award-winning brow serum developed to promote fuller- and thicker-looking brows in 4-6 weeks. Ideal for anyone looking to improve the appearance of their brows. neuBROW brow enhancing serum is formulated with Dual-Weight Protein Complex to boost shine, flexibility, and restore the appearance of youthful-looking brows. neuBROW brow enhancing serum delivers peptides, proteins, vitamins and conditioning ingredients for bold, beautiful, more defined-looking brows. Not tested on animals For all skin types Ophthalmologist and dermatologist tested Consumer tested