Flourish Brow Density BoosterA thickening, brow boosting serum that borrows the best growth supporting ingredients including Virtue's award winning patented Alpha Keratin 60ku Clinical protein, plus stimulating plant based extracts and high performing peptides for fuller, lusher, healthier brows and fewer uneven patches. Dermatologist tested. Non Irritating. This product is an unscented lightweight serum that glides on softly with a quick dry down.