Source · study Combined topical application of lotus and green tea improves facial skin surface parameters Primary source Publisher:Rejuvenation Research (Mahmood T, 2013) Source type:Journal · study Last checked:2026-11-10 URL: https://doi.org/10.1089/rej.2012.1380 Pages that cite it Evidence: In a placebo-controlled split-face study of 33 healthy Asian men, a once-daily emulsion combining green tea and lotus extracts produced significant improvements in skin roughness, scaliness, smoothness and wrinkling over 60 days, including about 49.99% better smoothness and 23.22% less facial wrinkling from baseline.