vitamins c, d and zinc contribute to the normal function of the immune system,magnesium, which contributes to a reduction of tiredness and fatigue,50% more zinc than you\'ll find in some a-z multis,twice the level of vitamin c & selenium found in most high street multis,made in the uk to stringent gmp standards,fantastic value for money at less than 17p per day this is one of the most advanced one-a-day formulas available, not just because of the spread of nutrients included but also their potency which is generally stronger than you\'ll find in typical high street brands of multi vitamins. in fact, the nutrient levels in our multi are often higher than you\'ll find in many single supplements! take lutein for eye health, for example. our multi contains 8 times the level of lutein found in a leading brand!as well as excellent levels of vitamins c, d and e the formula boasts significant (but safe) levels of other key nutrients including the trace minerals chromium and selenium, zinc (for the normal function of the immune system) and stronger b vitamins than you\'ll find in many b complexes.if you want to take just one supplement, then we think a multi vitamin is the most sensible choice. and by choosing our ultimate multi you\'ll be taking one of the best formulas available. suitable for 16 years and up.full money back guaranteewe\'re confident you\'ll be pleased with our product and you can try it at no risk because our no-quibble money back guarantee means just that. if you\'re not completely happy, we\'ll refund your money in full, no quibble.