Intervention
Q: What impact does vitamin and mineral status or the use of dietary supplements have on the prevalence or severity of acne?
You're using the new PEN System interface that will officially launch for all PEN users on July 13, 2026. After that time, you will no longer be able to access the classic version.
Q: What impact does vitamin and mineral status or the use of dietary supplements have on the prevalence or severity of acne?