Can I take super hd cellucor if I have thyroid problems and am taking Synthroid (thyroxine) to control it?

Why take the chance? The "stuff" says it is "a powerful energy, focus, and ‘feel-good’ weight-loss product. Super hd contains rauwolfia, amla fruit and yohimbe extract to deliver the most intense and high-powered fat incinerating and energy blend". In general, claims that supplements make are just claims. It is wisest to beware of products with lots of marketing hype.