Yields 50% pure trans-resveratrol extract. 100% is trans-resveratrol , the preferred form over cis-resveratrol.

Supplement Facts:
Serving Size: 1 Capsules
Amount per Serving: Resveratrol
(Polygonum Cuspidatum):500mg (Standardized to 50%)
Yielding:Trans-Resveratrol: 250 mg