Photoprotection beyond ultraviolet radiation: A review of tinted sunscreens

Lyons, Alexis B.; Trullàs, Carles; Kohli, Indermeet; Hamzavi, Iltefat; Lim, Henry W.

doi:10.1016/j.jaad.2020.04.079

Cited by 115 publications

(112 citation statements)

References 17 publications

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“…Providing optimal protection against UVA1 and VL is thus beneficial in dark‐skinned individuals. VL (specifically high‐energy violet light [HEV]) protection with tinted sunscreens containing iron oxides and/or pigmentary titanium dioxide is important for dark‐skinned individuals, and these products should preferably be colour matched to the constitutive skin colour of the user to maximize compliance 23 . There is a need for clear and practical recommendations to highlight the importance of regular sunscreen use even in darker skin types to prevent pigmentation and photoaging.…”

Section: Skin Phototypesmentioning

confidence: 99%

Photoprotection according to skin phototype and dermatoses: practical recommendations from an expert panel

Passeron

Lim

et al. 2021

Acad Dermatol Venereol

114

130

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Increasing evidence on the impact of the different wavelengths of sunlight on the skin demonstrates the need for tailored recommendations of sunscreen according to skin phototype and dermatoses, which is now possible due to advances in the filters and formulations of sunscreens. A selective literature search was performed by an international expert panel, focusing on the type of sunscreen to recommend for photoaging, skin cancers, photodermatoses, pigmentary disorders and skin inflammatory disorders. Protection against ultraviolet (UV)B is especially important for light skin as there is a high risk of sunburn, DNA damage and skin cancers. Darker skin may be naturally better protected against UVB but is more prone to hyperpigmentation induced by visible light (VL) and UVA. Protection against UVA, VL and infrared A can be helpful for all skin phototypes as they penetrate deeply and cause photoaging. Long‐wave UVA1 plays a critical role in pigmentation, photoaging, skin cancer, DNA damage and photodermatoses. Adapting the formulation and texture of the sunscreen to the type of skin and dermatoses is also essential. Practical recommendations on the type of sunscreen to prescribe are provided to support the clinician in daily practice.

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Section: Skin Phototypesmentioning

confidence: 99%

Photoprotection according to skin phototype and dermatoses: practical recommendations from an expert panel

Passeron

Lim

et al. 2021

Acad Dermatol Venereol

114

130

View full text Add to dashboard Cite

show abstract

“…There is enough evidence at present to highlight the harmful effects of VL and its implication upon several photodermatoses including chronic actinic dermatitis, cutaneous porphyrias and solar urticaria, in addition to hyperpigmentary disorders. 2 Inorganic filters (present in physical sunblocks) such as iron oxide can attenuate the effects of VL and must be visible on application ("tinted" to the user) to be efficacious. 3 Iron oxide has been shown to be the most successful agent, protecting against both VL and UV rays.…”

Section: E T T E R T O T H E E D I T O R Photoprotection Against Visible Light: Implications For Clinical Practicementioning

confidence: 99%

“…6 This beneficial effect can be extrapolated to other dermatoses triggered and affected by VL such as solar urticaria. 2 Objectionable aspects of VL sunblocks should also be acknowledged including the fact that most sunblocks that block VL will appear coloured on the skin which may be as undesirable as the *pigmentary disorder itself.…”

Section: E T T E R T O T H E E D I T O R Photoprotection Against Visible Light: Implications For Clinical Practicementioning

confidence: 99%

Photoprotection against visible light: Implications for clinical practice

Searle

Ali

Al‐Niaimi

2020

Photoderm Photoimm Photomed

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“…Recent academic and commercial concern expressed about adverse effects in the skin from violet and blue light (VBL) exposure goes beyond the well-known effects of ultraviolet radiation (UV) [1][2][3][4]. The focus on VBL effects [5,6] may have contributed to the emergence of new cosmetic products for visible light protection of the skin [1].…”

Section: Introductionmentioning

confidence: 99%

Violet-blue light exposure of the skin: is there need for protection?

Christensen

Johnsen

Bruzell

2021

Photochem Photobiol Sci

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Advocates of skin protection against blue light express concern about exposure to indoor lighting and electronic screens as well as natural outdoor exposure. However, the nature of adverse effects in skin is unclear and the doses to induce effects are unknown. We aimed to reveal whether there is a scientific basis for promoting skin protection against violet-blue light (400–500 nm, VBL). Based on published literature, we determined the time to reach a threshold dose that induced a biological response in human skin. In the absence of an action spectrum for effects on skin, we used a hand held probe with a defined spectral response and measurements of the unweighted exposure between 400 and 500 nm to estimate the exposure by a selection of artificial light sources and solar light. For comparison, an outdoor threshold erythemally weighted UV dose was set to 1 SED (standard erythema dose). Outdoor, weighted irradiances were obtained using a radiative transfer model. Induction of pigmentation in human skin tissue was the only consistently reported endpoint after VBL exposure of about 65 Jcm−2. This threshold dose was reached in 0.5 to 20 months of exposure to indoor lighting sources. In comparison, specialised medical sources reached this dose in 0.5 min to 45 h. The time outdoors to reach 1 SED was shorter than the time to reach a VBL threshold dose throughout all seasons. Skin protection against VBL is superfluous for exposures to domestic lighting sources or screens and for solar radiation; however, it may be advantageous for patients suffering from photosensitive diseases or taking photosensitising medication.

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Photoprotection beyond ultraviolet radiation: A review of tinted sunscreens

Cited by 115 publications

References 17 publications

Photoprotection according to skin phototype and dermatoses: practical recommendations from an expert panel

Photoprotection according to skin phototype and dermatoses: practical recommendations from an expert panel

Photoprotection against visible light: Implications for clinical practice

Violet-blue light exposure of the skin: is there need for protection?

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