Wanigasekara Daya Ratnasooriya, Walimuni Prabashini Kaushalya Mendis Abeysekera, Chatura Dayendra Tissa Ratnasooriya. In vitro skin whitening and lightening properties of Sri Lankan low grown orthodox Orange Pekoe grade black tea. World J Pharm Sci [Internet]. 2014 Oct. 1 [cited 2024 Dec. 23];2(10):1249-52. Available from: https://wjpsonline.com/index.php/wjps/article/view/skin-whitening-properties-orange-pekoe-grade-black-tea