Photoprotection beyond ultraviolet radiation: A review of tinted sunscreens - 10/04/21

Abstract |
Ultraviolet radiation and visible light both have biologic effects on the skin. Visible light can induce erythema in light-skinned individuals and pigmentation in dark-skinned individuals. Broad-spectrum sunscreens protect against ultraviolet radiation but do not adequately protect against visible light. For a sunscreen to protect against visible light, it must be visible on the skin. Inorganic filters (also known as mineral filters), namely, zinc oxide and titanium dioxide, are used in the form of nanoparticles in sunscreens to minimize the chalky and white appearance on the skin; as such, they do not protect against visible light. Tinted sunscreens use different formulations and concentrations of iron oxides and pigmentary titanium dioxide to provide protection against visible light. Many shades of tinted sunscreens are available by combining different amounts of iron oxides and pigmentary titanium dioxide to cater to all skin phototypes. Therefore, tinted sunscreens are beneficial for patients with visible light–induced photodermatoses and those with hyperpigmentation disorders such as melasma and postinflammatory hyperpigmentation.
Le texte complet de cet article est disponible en PDF.Key words : iron oxide, photoprotection, tinted sunscreen, titanium dioxide, ultraviolet light, visible light
Abbreviation used : UV
Plan
| Funding sources: None. |
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| Conflicts of interest: Dr Lyons is a subinvestigator for Incyte, Beiersdorf, Unigen Inc, General Electric, Lenicura, Estée Lauder, Miragen, Biofrontera, Pfizer, and L'Oréal. Author Trullas is an employee of ISDIN. Dr Kohli is a subinvestigator for Beiersdorf, Estée Lauder, Unigen Inc, L'Oréal, Ferndale Laboratories, Allergan, and Johnson & Johnson, and has served as a consultant for Pfizer, Johnson & Johnson, and Beiersdorf. Dr Hamzavi is an investigator for the Patient-Centered Outcomes Research Institute, Incyte, L'Oréal, Beiersdorf, Estée Lauder, Unigen Inc, Ferndale Healthcare Inc, Pfizer, Allergan, and Johnson & Johnson, and has served as a consultant for Pfizer, Johnson & Johnson, and Beiersdorf. Dr Lim is an investigator for Incyte, Beiersdorf, L'Oréal, Pfizer, and the Patient-Centered Outcomes Research Institute, has served as a consultant for Pierre Fabre, ISDIN, Ferndale Healthcare Inc, and Galderma, and has participated as a speaker in general educational sessions for Pierre Fabre, Eli Lilly, Johnson & Johnson, and Ra Medical Systems. |
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| IRB approval status: Exempt. |
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| Reprints not available from the authors. |
Vol 84 - N° 5
P. 1393-1397 - mai 2021 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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