Curcumin bioavailability in skincare: extract vs raw powder vs encapsulated forms — what the label is actually telling you

Five forms of "turmeric in skincare" — raw powder, oleoresin, standardized 95% curcumin extract, tetrahydrocurcumin (THC), and liposomal/phospholipid-complex curcumin — compared on potency, penetration, staining, and stability. Covers the three reasons bioavailability is hard topically (water solubility ~11 ng/mL, UV photodegradation, pH instability above 7), why "more yellow ≠ more active," and a 30-second label-reading framework. Comment prompt asks users to share INCI lines for collective label parsing.