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. Ingre