PLEASE NOTE: Products are ranked in decreasing order of potency. Products listed nearer the top of any particular health need are the most effective and have the most scientific research to support their use in respect of such health need. Multiple products, one from each bullet (•) can be combined with products from other bullets for added effectiveness, if needed, since products from different bulleted lines have different mechanisms of action. However, where more than one product is listed within a particular bullet (•), then only one of these products should be used, since all products listed within the same bullet share an identical or similar pharmacology (mechanism of action) for that condition. This is because whenever a particular condition is treated via multiple different mechanisms of action, the result is generally improved effectiveness. However, when products are combined that work via exactly the same mechanism of action, then no extra benefit is obtained.