Watanabe et al 10 conducted a randomized controlled, split-face trial involving 30 healthy women in the Philippines to assess the efficacy of 2% w/w oxidized glutathione (GSSG) lotion on skin lightening
doi: 10.3389/fpsyt.2021.669089 Received 17 February 2021 Accepted 16 August 2021 Published 30 September 2021 Volume 12 - 2021 Edited by Francesca Bonomini, University of Brescia, Italy Reviewed by Mostafa Waly, Sultan Qaboos University, Oman
[DOI] [PMC free article] [PubMed] [Google Scholar] 122.Chasapis C.T., Ntoupa P.A., Spiliopoulou C.A., Stefanidou M.E
doi: 10.1038/s41586-024-07805-2
The abdomen is the most commonly used site and the easiest for self-administration
Its pH is approximately 3.6