Stanford University physician presents effects of Tegreen 97 on skin to American Academy of Dermatology

The results of a study at the Department of Dermatology at Stanford University's School of Medicine were presented at the poster session of the American Academy of Dermatology's annual congress in San Francisco. The study was designed to measure the effects of a combination of topical and oral forms of green tea extracts on the histology of skin.


Along with many antioxidant-maintenance, cell-protection, and thermogenetic benefits, green tea extracts have recently gained popularity as an ingredient in topical skin care preparations to treat aging skin. The study was commissioned to put green tea supplementation to the test in human skin. In the study, clinicians used Tegreen 97®-a proprietary green tea-derived antioxidant developed by Nu Skin's sister company, Pharmanex®.


Authored by physician scientists of the department of dermatology at Stanford University, the study revealed that histologically, there was a significant improvement in the skin's elastic tissue content.


Researchers also noted that green tea might eventually have a place in skin rejuvenation. "Previous studies with green tea have shown it to be a powerful antioxidant that can help prevent photo damage in the skin," said study author Alexa Boer Kimball, M.D., MPH, assistant professor and director of clinical trials and Stanford Hospital and Clinics. "This study suggests that green tea may also promote elastic tissue remodeling when used for a relatively short time. Longer and larger studies will be helpful in teasing out the long-term effects of the oral versus the topical formulations on visible signs of photoaging."


Nu Skin's partnership with Stanford University began in April 1999 with the establishment of the Nu Skin Center for Dermatological Research at Stanford University School of Medicine which focuses on scientific investigation, dermatology research, product development, patient care and training. The Nu Skin Center conducts clinical trials and research involving existing and potential Nu Skin products, ingredients and formulas.


"This credential from the AAD further supports Nu Skin's commitment to dermatological science and building a greater body of knowledge in the skin care category," says Lori Bush, former president of Nu Skin.


To learn more about Tegreen 97®, visit