Vaseline, also known as petroleum jelly, is a semi-solid mixture derived from petroleum. It was discovered in the 19th century and is widely used for its moisturizing properties. Vaseline acts as a barrier, helping to lock in moisture and protect the skin from external irritants. This versatile product is commonly used to soothe dry skin, heal minor cuts, and prevent chafing. It is also found in many cosmetic products and can be used to enhance the shine of lips and eyelids. Its non-comedogenic nature makes it suitable for various skin types.