Photoprotection for all: Current gaps and opportunities

Rigel, Darrell S.; Lim, Henry W.; Draelos, Zoe; Weber, Teresa; Taylor, Susan C.

doi:10.1016/j.jaad.2021.12.023

Cited by 19 publications

(15 citation statements)

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“…Skin photoprotection indeed remains a vivid topic of research, witnessed by many recent and excellent papers. When limiting the literature search to these last 3 years, many works [38,[55][56][57][58][59][60][61][62][63][64][65][66] attest to the continuous efforts of all researchers dedicated, worldwide, to fundamental or applied advances in the skin photoprotection domain, best fitted to genetical/physiological or cultural specificities (skin phototypes, lifestyles, etc. ).…”

Section: Study Objective (N) Gender (W or M) Ages Protocol/methods Us...mentioning

confidence: 99%

Photoaging's portrait: The road map towards its photoprotection

Flament,

Saint‐Leger

2023

Intern J of Cosmetic Sci

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ObjectiveTo summarize key research published by the author's group, dealing with skin photoaging and its photoprotection.Materials and MethodsTwo methodologies (standard photographs and selfies imaging) resulting from referential skin ageing atlases were applied on 2487 subjects of different ancestries, ages and gender. These aimed at first to best assess and grade the variable severities of some facial signs (texture/wrinkles, pigmentary spots, sagging and vascular disorders) that occur progressively during the photoaging process. Second, such methodologies were used to record the benefits brought by a photoprotective regimen (671 women and men).ResultsIn all studied ancestries, each facial sign show an increase severity along decades, at its own pace, some showing a linear like progression, whereas some plateau at early ages. These changes differed according to skin innate colour (phototype) and with individual behaviours vis‐à‐vis sun exposures, more so among European women than North‐East Asian women. An effect of gender (less severe alterations) was observed on Chinese men, as compared to Chinese women. Pigmentary disorders were found hallmarks of photo‐aged North‐East Asian women. Globally, photoaging impact the apparent age of the different subjects.The counteracting effects of strong topical Photoprotective regimens were evidenced along a 6‐month seasonality in Chinese and French women or 1‐year period in Brazilian women with phototypes II to VI. Photoprotection led to a more even skin complexion among Indian subjects with pigment irregularities.ConclusionTwo factors clearly hamper a better assessment of the efficiency of photoprotection of the sun‐induced cutaneous ageing: short durations (months) of the studies with regard to the global fate of photoaging by decades and the number of studied subjects, limited to hundreds for practical reasons. The methodology based on the automatic analysis of facial signs through selfies images could theoretically bypass both factors, allowing thousands of subjects to be studied along years.

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Section: Study Objective (N) Gender (W or M) Ages Protocol/methods Us...mentioning

confidence: 99%

Photoaging's portrait: The road map towards its photoprotection

Flament,

Saint‐Leger

2023

Intern J of Cosmetic Sci

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“…The sunlight spectrum covers a wide range of electromagnetic radiation wavelengths. 3 UVB rays (295-320 nm) primarily penetrate the epidermis while UVA rays (320-400 nm) also reach the dermis. 4 The detrimental effects of UV rays are both acute (erythema, sunburn, photo-immunosuppression and photo-allergy), and chronic (including skin cancers, melasma, post-inflammation hyperpigmentation and photoageing).…”

Section: Introductionmentioning

confidence: 99%

“…The vital roles and benefits of sunlight have been well documented 2 including vitamin D synthesis and benefits on the mood. The sunlight spectrum covers a wide range of electromagnetic radiation wavelengths 3 . UVB rays (295–320 nm) primarily penetrate the epidermis while UVA rays (320–400 nm) also reach the dermis 4 .…”

Section: Introductionmentioning

confidence: 99%

Sun exposure behaviours as a compromise to paradoxical injunctions: Insight from a worldwide survey

Passeron,

Lim,

Goh

et al. 2023

Acad Dermatol Venereol

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BackgroundBehavioural interventions can improve attitudes towards sun protection but the impact remains inconsistent worldwide.ObjectiveTo assess awareness of and attitudes towards the multiple facets of sun exposure and suggest ways to improve prevention from overexposure to the sun in all geographical zones and multiple skin types.MethodsOnline survey was conducted from 28 September to 18 October 2021. Study population was selected from the Ipsos online Panel (3,540,000 panellists), aged ≥18 years, from 17 countries around the five continents. Demographics, sun‐exposure habits and practices, understanding of risks and information on phototypes were documented and analysed using descriptive statistics.ResultsEighty‐eight per cent of participants knew that sunlight can cause skin health problems (90% phototypes I‐II, 82% phototypes V‐VI, >90% in American and European countries, 72% in Asia and 85% in Africa). Eighty‐five per cent used some form of protection against sunlight, predominantly: Seeking shade (77%), avoiding the midday sun (66%), facial application of sunscreen (60%) and wearing protective clothing (44%). The perception of sunlight itself is positive (‘it gives energy’ for 82%; ‘tanned skin looks attractive’ for 72%), although less in Asian countries and among individuals with dark skin phototypes. Eighty‐three per cent reported having experienced sunburn, mainly in Australia, Canada, USA, Germany, France and Russia, and among individuals with dark skin phototypes. Only 12% systematically/often used all types of protection during exposure to the sun and 23% believed it is safe to go out in the sun with no protection when their skin is already tanned. From 13% (skin phototype I) to 26% (phototype VI) reported not using any form of protection against the sun. Knowledge and habits were significantly superior among people who are accustomed to seeing a dermatologist for a complete skin exam.ConclusionsDermatologists could play a crucial role in relaying novel prevention messages, more finely tailored to specific risks, populations and areas of the world.

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“…18) Skin exposed to UVB rays for an extended period without any protection is susceptible to harmful effects, namely the damage to cells and DNA in human keratinocytes that can cause cancer. 19) Excessive UV exposure can cause skin malignancies, and one of the most prominent groups are squamous cell carcinoma (SCC), basal cell carcinoma (BCC), and malignant melanoma. 20) The ratio of UVA and UVB can be affected by time, season, altitude, and latitude, hence, direct exposure to the skin or through glass windows without any protection can cause damage and even melanoma.…”

Section: Introductionmentioning

confidence: 99%

Component, Formulation and Regulatory of Sunscreen Materials: A Brief Review

Hariani¹,

Jerusalem²,

Tahir³

et al. 2023

Korean. J. Mater. Res.

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to the development of skin cancer, in which melanocytes transform into melanoma cells. 3,4) Damages to this part of the human body can be caused by various factors, including duration of sun exposure, geographic location, age, skin color, behavior, and activities. [5][6][7] Sunscreen is a topical product that consists of certain chemicals that allow for its absorptive and reflective characteristics on UV rays. UV rays are divided into UVA, UVB, and UVC with wavelengths of 320~400 nm, 290~400 nm, and 200~290 nm, respectively. 8) Sunscreens protect the skin from UV radiation, which can cause cancer. Furthermore, it can also prevent other effects, such as aging and pigmentation. 9)Sunscreen is often used as a skin protector from UV radiation, particularly during outdoor activities. 10) Evidence of[해설논문] 한국재료학회지

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Photoprotection for all: Current gaps and opportunities

Cited by 19 publications

References 50 publications

Photoaging's portrait: The road map towards its photoprotection

Photoaging's portrait: The road map towards its photoprotection

Sun exposure behaviours as a compromise to paradoxical injunctions: Insight from a worldwide survey

Component, Formulation and Regulatory of Sunscreen Materials: A Brief Review

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