Here are a few things to consider when choosing products for your nutritional needs.
What constitutes a good multivitamin? The answer is the same things that make living food healthy. Most multivitamins are made of synthetic ingredients and toxic fillers. They may have all the vitamins you need, but the vitamins are typically in suboptimal amounts and in a cheap form made of mineral salts, which are poorly absorbed. People who take these pills usually don't get the nutrition they need.
These chemical-based supplements also lack that vital combination of nutrients that characterizes living foods. Nature never produces nutrients in isolation. Oranges, for example, contain much more than vitamin C.