Curcumin: $3-34/kg commodity, $60-600/kg branded.
Astaxanthin: $2,500/kg synthetic (aquaculture), $7,000+/kg natural (supplement).
Saffron stigma: $5,000-10,000/kg raw, $0.30/dose clinical.
Ginseng root: $50-200/kg standard, $10,000-50,000/kg wild.
The spread between commodity price and branded price is entirely a function of scientific understanding: mechanism and patent and clinical evidence and brand = 5-20x premium.
Publications of interest:
https://pmc.ncbi.nlm.nih.gov/articles/PMC10061533/
https://pmc.ncbi.nlm.nih.gov/articles/PMC6806606/
https://pmc.ncbi.nlm.nih.gov/articles/PMC9654660/