SSS does use STEM CELLS!!!!!!!It does not use embryonic stem cells but instead stimulates a persons own stem cells to repair that persons brain. There are no problems with rejection or inflammation as might result from using embryonic stem cells. That is why SSS is so far ahead of the other companies....once the studies begin again there can be some phase II results in three or four months. SSS is years ahead! There has been work on embryonic stem cells outside the U.S. and it is going very slowly.