Schwarzkopf styling products. BC EXCELLIUM Control Treatment. Bc Excellium is the first complete care system for mature hair. Formulated with Q10 + and Omega 3 to control thick, colored mature hair and protect it from color loss. The substance Q10 + is a powerful coenzyme that is present in all cells of the human body and is necessary for the production of energy and keratin. Omega 3 provides essential lipid nutrients to keep hair in optimal condition over the years and smooths the hair surface. This treatment visibly reduces the signs of aging, deeply nourishes and controls frizz. Apply on wet hair, leave to act for five to ten minutes and rinse.