I am sure most do not conduct their own research, certainly not Species which is just a 2 man operation. Although they CLAIM to be formulating their own product based on Their Own research.
Met-Rx when Scott Connelly owned it is probably the only company that I can believe. Gaspari seems to run a decent outfit as well as whatever Conte ran and Patrick Arnold.
The fly-by-nighters, Species and the like, are not researching anything.