Sunscreen photoprotection and vitamin D status

BACKGROUND: Global concern about vitamin D deficiency has fueled debates on photoprotection and the importance of solar exposure to meet vitamin D requirements.

METHODS: An international panel of thirteen experts in endocrinology, dermatology, photobiology, epidemiology and biological anthropology reviewed the literature prior to a one-day meeting in June 2017, during which the evidence was discussed. Methods of assessment and determining factors of vitamin D status, and public health perspectives were examined and consequences of sun exposure and the effects of photoprotection were assessed.

RESULTS: A serum level of ≥ 50 nmol/L 25(OH)D is a target for all individuals. Broad-spectrum sunscreens, that prevent erythema, are unlikely to compromise vitamin D status in healthy populations. Vitamin D screening should be restricted to those at risk of hypovitaminosis, such as patients with photosensitivity disorders, who require rigorous photoprotection. Screening and supplementation are advised for this group.

CONCLUSIONS: Sunscreen use for daily and recreational photoprotection does not compromise vitamin D synthesis, even when applied under optimal conditions. This article is protected by copyright. All rights reserved.