That sounds severe enough I'd consider it worthwhile to pay a lab to run spectroscopy on a range of supplements just in case, or consider hiring a lab to synthe

That sounds severe enough I'd consider it worthwhile to pay a lab to run spectroscopy on a range of supplements just in case, or consider hiring a lab to synthesize a batch I _know_ will meet my needs. The first option is probably a lot less pricey than you'd expect.