Give your weight-loss plan a boost with Jarrow Formulas® trans-Pterostilbene. It delivers pterostilbene, a methylated, naturally occurring form of resveratrol that has better uptake and metabolic stability in the body. Pterostilbene is a calorie restriction mimetic that activates the sirtuin pathway. Emerging science suggests that pterostilbene may exhibit special benefits in brain function and health. When combined with a healthy diet and exercise plan, trans-pterostilbene vegetarian capsules may be a valuable aid in your weight-loss plan. No major allergens.