Dangerous Supplement Combo?

I’ve noticed now where several companies on the market have started selling products that appear to be a hemodialator as well as a fat burner. I know companies like to makret to what is popular, but can’t this be a possible dangerous combo?

By dangerous, I’m going with the line of thought that most nitric oxide products act through vasodialation compared to a thermogenic that would possibly promote vasoconstriction. I coudln’t believe it when I saw these, seems like big time red flags to me.

It seems to me the only thing it would do is cancel each other out.

I could be completely wrong though.