Intervention
Q: Does the use of sunscreen with Sunscreen Protection Factor (e.g. SPF 15 or more) completely or partially inhibit skin vitamin D synthesis?
Last Updated: 2021-12-13
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: Does the use of sunscreen with Sunscreen Protection Factor (e.g. SPF 15 or more) completely or partially inhibit skin vitamin D synthesis?