Brow Pop Dual-Action Defining Pencil. This Product Is:. . a dual-action micro triangle-tip pencil. Good For:. hair thinning and filling in sparse brows . . Why We Love It:. Kosas Brow Pop Dual-Action Defining Pencil works to add hair-like fullness and definition to all brow types. This clean, vegan formula contains castor oil that nourishes and protects, while supporting overall brow health. The built-in spoolie is perfect for blending– shape, sculpt, fill in bald spots and add feathered hairs with this dual-action pencil. Free of drying alcohols, fragrance, silicone, mineral oil, synthetic waxes and microplastics.Shade Descriptions:. Taupe – Cool blondeHoney Blonde – Warm golden blondeSoft Brown – Light brown/dark blondeAuburn – True AuburnMedium Chocolate Brown – Warm medium brownMedium Brown – Neutral medium brownDark Brown – Rich dark brownBrown Black – Soft brown blackBlack – BlackGrey – Grey. .