A do-it-yourself brow-detailing pen that will brush on effortless brows. Highlighted Ingredients: - Tea Tree Oil: Nourishes and conditions brow hair. - Vitamin E: Acts as an emollient and antioxidant. Ingredient Callouts: Free of sulfates SLS and SLES, parabens, phthalates, mineral oil, and triclosan. This product is also vegan, cruelty-free, and gluten-free. What Else You Need to Know: This precision, angled brush tip softly flicks on hair-like strokes with bristles that mimic real hair growth.