I've read a few posts about adaptogens, but I'm still having a hard time wrapping my head around the use of them. One thing says they are for energy/stims, the next says for repair, then another says good for recovery. I know there's different types and companies that put them out at different potency levels... is there a one stop shop for learning about what each one does and which are most beneficial?
Check out my post on the science behind rhodiola rosea. It should help you a bit more on understanding the science behind adaptogens.
I can't post links yet due to my post count, but the title is "Speedy Science with Hbspeed88 #1: Rhodiola Rosea"
Additionally, adaptogens are still being explored and studied. Mechanisms are still being discovered and effects are not fully understood. There is quite a bit of data out there though on adaptogens like ashwagandha, rhodiola, bacopa, etc.... I came across a study just a few days ago that looked at the hundreds of genes that get regulated following rhodiola ingestion. That study is a demonstration of how much we have yet to learn on these sorts of things and how we can optimize them for medicinal use in the future, etc.
When looking for the "most potent" extract, you should be looking at standardization of different bioactive compounds. For example, two of the most studied bioactives in rhodiola are salidrosides and rosavins. Most extracts are standardized at 3% rosavins/ 1% salidrosides. These rosavins and salidrosides have different effects at the biological level which make them more effective than other compounds found in the rhodiola plant.
Scientists are attempting to look at which bioactives are the most biologically active and induce the most beneficial effects. Nutraceutical companies, etc can then standardize the most potent bioactive compound concentrations by altering extraction methods to give consumers a product that optimizes biological effects.
Make sense? Let me know if you have any more questions on this sort of thing.