Advances have been made in the field of stem cell therapy, but the expansion of therapies offered, some with, some without, a deep level of research, has grown significantly. Many Americans are traveling to other countries with less rigorous testing requirements to access these therapies. But because the range of the available unproven treatments is so wide – from not researched much at all to having been researched in-depth – how do we determine regulation? For more details, please see Future Medicine.