Sambucol Extra Defence is sambucols strongest formulation for your everyday health and energy. Its unique formula has all the usual Sambucol ingredients to support your immune system, plus a multivitamin & mineral complex to help support your all round good health and general wellbeing. The antioxidants of Zinc and Selenium also offer cell protection. Use Sambucol throughout the year to support your immune system and increase your multivitamin and antioxidant intake.