In the present study, antioxidant activities and tyrosinase inhibition of Perilla frutescens, Houttuynia cordata and Camellia sinensis extracts and the extract mixtures (PHC) were investigated. PHC showed 80.2% and 98.0% of free radical scavenging activity in DPPH and ABTS analysis, respectively, and 50% tyrosinase inhibition in 1000 µg/mL concentration. HaCaT cells did not show cell toxicity in 100 µg/mL of the PHC. Furthermore, HaCaT cell viability by co-culture with extract H. cordata was increased more than 10% compared with untreated cells. However, the cell viability was decreased in 500 µg/mL of the extract C. sinensis and the PHC. These results suggested that about 100 µg/mL concentration of the PHC showed proper tyrosinase inhibitory effect and antioxidant activities. The PHC could be used as multifunctional cosmeceutical agents.
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