What it is: A thickening serum with patented Alpha Keratin 60ku Clinical® protein, stimulating extracts, and peptides for fuller brows and fewer uneven patches. Highlighted Ingredients: - Alpha Keratin 60ku CLINICAL®: Anchors the brow, supports new growth, and thickens and enhances. - Specialty Tetrapeptide Blend and Red Clover Flower Extract: Reactivates follicles to fill in uneven patches and enhance fullness. - Natural Microalgae Extract: Prevents brow loss, improves volume, and makes brows stronger. Ingredient Callouts: This product is gluten-free and cruelty-free. What Else You Need to Know: Flourish® Brow Density Booster is unlike anything you’ve tried thanks to Alpha Keratin 60ku®, a unique protein that prioritizes density and follicle health. Paired with a complex of proven growth-supporting ingredients, it’s the ultimate solution for stronger, thicker, and more enhanced brows. Research Results: After 4 weeks of use* - 93% saw more conditioned brows - 87% saw stronger brows - 83% saw an increase in brow density After 8 weeks of use* - 91% saw less brittle brows - 83% saw more enhanced brows - 82% saw thicker, fuller brows *Results of a consumer perception study of 72 women who used the Brow Density Booster daily for 12 weeks.