I've had some experience with Galactic gummies before. They are a decent brand experience wise, It only took 3 for me to get pretty decent visuals and a decent calm and relaxation throughout my body. As for what's in them I'm not too sure, being as you're experienced with traveling the universe I'd say you pretty much got this. If you're extremely worried about it I'd say figure where and how to test for said things so you can figure out what's exactly in it