According to Nutrilite, Double X is one of the best multivitamins on the market, because it contains more plant concentrates than the leading brands of multivitamin. Is this why Double X is more expensive than the leading brands of multivitamin? Or is this just a marketing trick to encourage you to buy it? At the price of about $75.00 it is expensive, but when you break it down the cost is about $2.50 per day. From this point of view, it is a decent bargain, but it would of been an even better bargain if all of its vitamins were high quality, and extracted from better or natural sources. How do I know some of its vitamins are low quality? Please read the whole review and you will find out.