Mix ingredients together in a small bowl or jar. Using a small, thin brush, test color on your hand. Depending on the color of your eyebrows and skin, you will most likely have to adjust this recipe. For darker eyebrows, use more activated charcoal.
Notes
To use: Dip a small, thin applicator brush into your homemade eyebrow filler and place the filler on the back of you hand to remove excess. Apply to eyebrows gently. I like to apply very little, then apply more from the filler remaining on the back of my hand. Occasionally stir homemade eyebrow filler to ensure consistent color.