Beverly Hills MD Thick + Full Brow Enhancing Serum is an advanced daily serum designed to help correct the look of thinning or sparse brows. By providing your brows the nutrients they need to thrive — like potent polyphenols, proteins, and vitamins — this formula can help you achieve visibly thicker, fuller, more youthful-looking brows.* *All individuals are unique; as such, your results can and will vary.