According to the data of "Research Progress of Pterostilbene", Pterostilbene is one of the hotspots in today's research, with anti-tumor, cardiovascular protection, antioxidant and other effects. It is a natural phytoalexin produced by the plant defense system. A large number of studies have shown that pterostilbene has good preventive and therapeutic effects in inhibiting melanin, anti-inflammatory, resisting ultraviolet rays, and skin tumors. Resveratrol was once known as the natural plant ingredient with the most anti-aging and antioxidant functions in the 20th century, and both pterostilbene and resveratrol have similar chemical, physiological and pharmacological properties. However, the biological activity of pterostilbene is far greater than that of resveratrol, and its bioavailability and stability are also better. In terms of bioavailability, the absorption efficiency of pterostilbene is 80%, and the absorption efficiency of resveratrol is only 20%. The study found that the same dose of resveratrol and pterostilbene in human blood, the concentration of pterostilbene is higher, and it is absorbed more. Pterostilbene can simultaneously exhibit excellent melanin inhibition, tyrosinase inhibition, antioxidant, UV protection, anti-inflammatory and anti-glycation effects, and is currently the most comprehensive and excellent natural active ingredient for whitening and anti-aging.