The Waterproof Black Eyeliner Pencils are a makeup essential that combines durability with precision, allowing for a flawless look that withstands the elements. These pencils are typically made from a blend of materials, including waxes, oils, pigments, and emollients. 
 
The waxes, such as beeswax or carnauba wax, provide a smooth application while ensuring the product adheres well to the skin. The inclusion of oils, like jojoba or castor oil, allows for a creamy texture that glides on effortlessly. The pigments give the deep black color that is both rich and long-lasting. 
 
Finally, emollients help to keep the formula soft and easy to apply, preventing it from drying out. Together, these components create a waterproof formula that resists smudging and fading, making it ideal for those long days or special occasions when you need your eyeliner to stay put.