It's a two-step treatment which restores the hair's strength and structure, protecting it from technical processes (mainly hair color and lightening treatments). PlexForte has a UNIQUE composition of active ingredients with diverse weights designed to repair hair from the inside to the hair's outer structures. The lower-weight molecules penetrate the inner structures to increase the strength and resistance of the hair fiber, to both tensile and flexular forces, which are those applied when drying and brushing. The components with higher molecular weight are deposited on the outside or the hair and polymerize naturally when drying to guaranty optimum seal and repair of the cuticle as well as enhancing the strength and volume of each fiber, reducing cuticle wear and tear to leave hair strong, flowing and shiny.