This Keller Baker Brow tinted brow gel has a customized micro applicator that allows you to apply the gel exactly where you need it without any mess. Please note (per Kelley's advice and our professional and personal experience): we advise you choose a Shade lighter then your brow hair color since this product is very pigmented and will apply a lot of color. It will cover grey hairs and brighten any light brows making them appear fuller! It is a”stain” and will act as a sweat proof product!