Pterostilbene is a compound naturally found in plants. It most commonly originates in heartwood, as well as small berries and nuts. Blueberries and grapes are known to be rich in this compound. Since it has protective benefits for the skin, it may support anti-aging and longevity. Pterostilbene may also aid in balancing blood sugar, relieving pain, as well as managing blood pressure. Some have also found it to have weight reduction and anti-obesity effects. Studies suggest that it blocks the absorption of fat cells, as well as their replication.