Our beard filler pen contains tocopherol, lanolin.It can double protection, waterproof and colorfast, add waterproof and colorfast formula.Anti-static design, sturdy and durable, instantly fills in beards, hair and eyebrows.It is easy to use:1 , first draw the outline of the beard.2, continue to color evenly on the inside along the desired shape.3, just fill in completely as shown in the picture.And it lasts all day with confidence, without smudging or fading from sweat or rain.