Schwarzkopf styling products. BC EXCELLIUM Shampoo Volume. Bc Excellium is the first complete care system for mature hair. Formulated with Q10 + and collagen for fine, colored mature hair that preserves color. The substance Q10 + is a powerful coenzyme present in all cells of the human body that is essential for the production of energy and keratin. Collagen is a natural protein that fills and fortifies the hair structure. This shampoo gently cleanses. Apply on wet hair creating a lot of foam and then rinse.