Higher Nature Immune Plus (formerly known as Immume+) (90). Higher Nature formerly known as Immume+. Vitamin C and zinc support the normal function of the immune system. Provides 1000mg vitamin C in two tablets. Powerful antioxidant formulation. Includes black elderberry and bilberry standardised extracts - with added blackcurrant fruit extract. Vegan and vegetarian friendly. What is Immune Plus?. Busy lives, stress and a diet lacking in essential nutrients are just some of the factors that can leave us feeling under par. A weakened immune system leaves us vulnerable to infections, so boost your body's defence system with this powerful immune support. Packed with natural extracts and important antioxidants, including blackcurrants and black elderberry to strengthen the immune system and protect against oxidative damage. Combined with immune essentials vitamin C and zinc to help keep you fighting fit.