In response to the growing demand for effective anti-aging skincare, researchers in China have tested a facial emulsion containing 0.1% pterostilbene—a natural antioxidant found in blueberries and grapes—and found that it significantly improved skin health.
The study was published in the Journal of Dermatologic Science and Cosmetic Technology.
The research team conducted a 28-day study with 31 volunteers using a double-blind, split-face method.
This means each participant applied the pterostilbene emulsion on one side of their face and a regular control emulsion on the other side, without knowing which was which. Researchers used advanced instruments and asked participants to evaluate their own skin changes.
According to Zhiyuan Chen, co-author and founder of Guangzhou Luanying Cosmetics Co., the pterostilbene emulsion helped reduce fine lines and wrinkles around the forehead, eyes, and Crow’s feet.
It also improved skin firmness, elasticity, and made pores appear smaller. In addition, it thickened the outer layer of the skin (epidermis) and increased the levels of collagen and elastic fibers—key components in keeping skin youthful.
Participants reported better satisfaction using the pterostilbene emulsion compared to the control, and the results were statistically significant. The researchers concluded that pterostilbene works through multiple pathways to produce visible improvements in aging skin.
Xueping Chen, the lead author of the study, said the findings provide strong support for using pterostilbene as an active ingredient in anti-aging skincare. “These results not only confirm pterostilbene’s anti-aging potential, but also show how natural ingredients can bring real benefits to cosmetics,” Chen said.
The researchers plan to conduct longer studies in the future to better understand how this ingredient works over time.
The study is published in Journal of Dermatologic Science and Cosmetic Technology.
Copyright © 2025 Knowridge Science Report. All rights reserved.
