There are several possible reasons. It may simply be that the angle of the light, or the quality of the light, in the photos on the site show the radiant colors that holograms display when they are turned to catch the light. It may be that the photos were 'enhanced' to make the images more appealing. Or it may be that you've bought fakes. There are fakes out there, sadly.
http://nathan-lee.com/blog/2010/07/21/how-to-spot-a-fake-power-balance-bracelet/But the saddest thing is - that ALL of them are probably 'fake', in that they really don't work. Can YOU say "placebo"?
