ad spend well spent? [on a dubious product]

This one goes beyond the question of me being served and ad [on twitter/x] for a product I've no interest in - it seems to me that the product is a bit iffy. OK, so it is available on Amazon as some kind of health product - but numerous reliable sources say [something like] 

A doctor explains that using peptides without medical supervision is unsafe and discusses the associated risks. He outlines specific questions to ask a specialty provider who is offering peptides to reduce your risk of side effects or poor outcomes.

But let's get back to the advertising issue. On the ad it says in very small print 'for laboratory use only'. So, if it is really* for laboratory use only then the ad is targeted at folk who are using this stuff for laboratory research, wouldn't it be easy to get a list of those labs - there can't be that many - and contact them directly? 

Having said that, if the sellers are trying to find individuals who are willing to jeopardise their health by listening to influencers and take this stuff ... well maybe scattergun advertising makes sense?

* Or are those 4 words a legal get-out clause? Would labs really be interested in a retail price with discount for using crypto?