A serum for hair is a hair care product applied to the scalp or hair to improve hair health and appearance. It is typically a lightweight, concentrated liquid that contains active ingredients designed to address specific hair concerns, such as dryness, damage, or hair loss. One example of a serum for hair is a hair growth serum, which contains ingredients that may stimulate hair follicles and promote hair growth.
Serums for hair have become increasingly popular due to their perceived benefits for hair health. They are often formulated with ingredients that can hydrate and nourish the hair, repair damage, protect against heat and environmental stressors, and promote hair growth. A key historical development in the use of serums for hair is the advent of leave-in serums, which can be applied to damp or dry hair and left in without rinsing, allowing for continuous absorption of the active ingredients.
