Our beard filler pen contains tocopherol and lanolin. It provides dual protection, waterproof without fading, with added waterproof fade-resistant formula. Anti-static design, sturdy and durable, instantly fills beards, hair, and eyebrows. Its usage method is very simple: 1, first draw the outline of the beard. 2. Continue to color evenly on the inside along the desired shape. 3. As shown in the picture, fill it completely. And it can last all day long with full confidence, won't get dirty or fade due to sweat or rain.