, high strength one-a-day capsules, with a blend of mixed carotenoids, from a natural not synthetic source of beta carotene, similar to the form found in vegetableshailed as one of the most powerful antioxidants beta carotene is still a popular supplement with many people. it was one of the first phytochemicals to be mass-produced because research showed that it had remarkable antioxidant activity. this means it can neutralise free radicals the unstable molecules that constantly bombard our cells.nature’s best insist on a natural form of beta carotene that is extracted from the pink algae dunaliella salina which is specially grown for this purpose & so the beta carotene is very similar to that found in vegetables. this means that in addition to the beta carotene there are a number of other natural carotenoids included. beta carotene is found in leafy green vegetables & in carrots & it is converted into vitamin a by the body according to the individuals needs.