Use before Keratin, Protein or Hair Botox Treatment Opens hair cuticle Remove buildups and residue from hair For all types of hair Use before any Hair Treatment including Coloring Majestic clarifying shampoo is specially formulated to remove buildup and residues from hair and prepare it to receive professional Brazilian keratin treatment and most other hair treatments. It can be used on all kinds of hair, including chemically treated hair. Formaldehyde Free.