Hair serums are lightweight and non-greasy hair care products that are designed to nourish, protect, and improve the overall health and appearance of your hair. They are typically made with a blend of natural oils, vitamins, and other beneficial ingredients that help to smooth frizz, add shine, and reduce breakage. Hair serums are designed to be applied to damp or dry hair and can be used on all hair types, including curly, straight, and wavy. They are especially useful for people with dry, damaged, or color-treated hair, as they can help to restore moisture and prevent further damage. Some hair serums also contain heat protectants, which can help to prevent damage from styling tools like flat irons and hair dryers. Overall, hair serums are a great addition to any hair care routine and can help you achieve healthier, more beautiful hair.