A low-volume hydrogen peroxide solution, typically 3%, serves primarily to deposit color. This process involves adding pigment to the hair without significantly lightening its existing shade. It is often employed when aiming for a darker tone or when refreshing color that has faded. For instance, it is suitable for applying a toner to pre-lightened hair or for blending away minimal gray hair.
The gentle nature of this type of developer minimizes hair damage compared to higher-volume options. Its use provides subtle color changes and enhances shine. Historically, lower-volume developers were preferred when preserving hair integrity was paramount, such as in the application of semi-permanent dyes.