It is rarely used in primary care
It is even made more popular with endorsements from celebrities like Mariah Carey and Britney Spears, who individually underwent PPC treatment with great success
Lower oil production also reduces the buildup of acne-causing bacteria and calms inflammation that can lead to painful cysts and nodules
Biol Pharm Bull 34:3549 Niu K, Hozawa A, Kuriyama S, Ebihara S, Guo HM, Nakaya N, Ohmori-Matsuda K, Takahashi H, Masamune Y, Asada M, Sasaki S, Arai H, Awata S, Nagatomi R, Tsuji I (2009) Green tea consumption is associated with depressive symptoms in the elderly
Second, due to their ability to change in oxidation number, free redox-active metals like Cr, Cu and Fe can directly enhance ROS production through Fenton and Haber Weiss reactions (Figure 2) [97]
This is not psychological