After reading the page.. Their Unique Selling Proposition (USP) is this:
HeightMaxâ„¢ is a scientifically proven, revolutionary height enhancing supplement that has all the balanced, timed-released vitamins and nutrients needed for growing teenagers and young adults. It is no secret that between the ages of 12 and 25, teenagers and young adults are more active, burn more energy and, unfortunately, eat unbalanced and less healthy meals. Even for those who attempt to eat more balanced meals, they are forced to eat foods that are filled with chemicals, pesticides, hormones, antibiotics, steroids and more. All of these unnatural and chemical additives can stunt your growth potential. To counteract this and to reach your maximum growth potential, you need our all-natural supplements.
Basically you need all the essential vitamins and nutrients when you are in a growth stage. 12-27 according to them. Rather then get your vitamins and nutrients from real foods which might contain bad juju (listed above) you need their all natural supplements.
Well.. if you take a daily vitamin and protein shakes, you are getting very good sources of vitamins and nutrients that aren't from these "contaminated" real food sources.
I'm not convinced. Their USP is based on that fact that they will give you the organic, non-contaminated vitamins and minerals you need to really grow.
It's not a magic formula. It just sounds like a very highly processed package of vitamins and minerals.