Stuff floating around in my Letro

I just took my letro this morning for the first time....there are all these flakes or sumthin floating around an some even settling on the bottomj of the bottle....I just SHOOK the bottle and took my .5 ml ....what is this stuff...dangerous?? bad letro??

Lion chime in

From what I have read it is just the flavoring. Just shake the hell out of it and it should help mix it up a little.

what he said ....