Most formulators know curcumin for its golden color — but that same pigment is what limits it in clear formulations. Tetrahydrocurcuminoids 95% solves the problem at the molecular level. The active, tetrahydrocurcumin (THC, CAS 36062-04-1), is produced when curcumin from Curcuma longa rhizomes undergoes catalytic hydrogenation. Saturating the C=C bonds removes the conjugated system that creates curcumin’s yellow hue, leaving a colorless curcumin derivative that appears as a white to off-white fine powder.

We supply this bulk turmeric extract as a manufacturer at factory price, holding every batch to 95% tetrahydrocurcuminoids by HPLC and confirming identity by NMR. The loss of color is not cosmetic only: without the chromophore, the molecule is far more stable toward light, heat, and oxidation than curcumin, and it keeps its profile across a broader pH range. That stability translates into fewer formulation constraints for transparent cosmetics, light-colored tablets, and functional drinks.

At the bench it passes 80 mesh and melts at 91–97°C for steady blending. The powder spreads in water and also dissolves in ethanol, methanol, and DMSO. Because it is light-sensitive, it is sealed in foil packs kept from direct light. Its formula is C21H24O6, molecular weight 372.41.

Supplied as one standardized powder instead of a mixed curcuminoid blend, our tetrahydrocurcuminoids 95% gives contract manufacturers repeatable batch composition. We support OEM, private label, and free samples, and every lot is released with a COA covering assay, identification, moisture, and heavy metals so buyers can verify before ordering at scale.