All ingredients can be found on the right-hand side of this page (just click on the picture of the label): http://www.trx2.com/store/trx2-capsules/

The contents are not affected by changes in temperature, except in very extreme circumstances. Our capsules also have very limited side-effects (skin flushing, slight stomach ache, etc.) - if you are experiencing something more severe, this could be unrelated to TRX2. Of course, you should always discontinue treatment and contact your physician if your side-effects become worse.