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Phytother Res. 2009 Nov;23(11):1624-5. doi: 10.1002/ptr.2832.

The antioxidant activity of Clitoria ternatea flower petal extracts and eye gel.

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Faculty of Pharmacy, Srinakharinwirot University, Ongkharak District, Nakhon-Nayok Province 26120, Thailand.


Extracts of Clitoria ternatea (butterfly pea) flowers are used in Thailand as a component of cosmetics and the chemical composition of the flowers suggest that they may have antioxidant activity. In this study the potential antioxidant activity of C. ternatea extracts and an extract containing eye gel formulation was investigated. Aqueous extracts were shown to have stronger antioxidant activity (as measured by DPPH scavenging activity) than ethanol extracts (IC(50) values were 1 mg/mL and 4 mg/mL, respectively). Aqueous extracts incorporated in to an eye gel formulation were also shown to retain this activity, however, it was significantly less than a commercial antiwrinkle cream included for comparison. The total phenolic content was 1.9 mg/g extract as gallic acid equivalents. The data from this study support the use of C. ternatea extracts as antioxidant inclusions in cosmetic products.

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