Impact on facial skin aging signs of a 1-year standardized photoprotection over a classical skin care routine in skin phototypes II-VI individuals: A prospective randomized trial.

Autor: Flament F; L'Oréal Research and Innovation, Clichy, France., Mercurio DG; L'Oréal Research and Innovation, Rio de Janeiro, Brazil., Catalan E; L'Oréal Research and Innovation, Clichy, France., Bouhadanna E; L'Oréal, Clichy, France., Delaunay C; L'Oréal Research and Innovation, Clichy, France., Miranda DF; CIDP Brazil Ltd, Rio de Janeiro, Brazil., Passeron T; Department of Dermatology, CHU Nice, Université Côte d'Azur, Nice, France.; INSERM, U1065, C3M, Université Côte d'Azur, Nice, France.
Jazyk: angličtina
Zdroj: Journal of the European Academy of Dermatology and Venereology : JEADV [J Eur Acad Dermatol Venereol] 2023 Oct; Vol. 37 (10), pp. 2090-2097. Date of Electronic Publication: 2023 Jun 09.
DOI: 10.1111/jdv.19230
Abstrakt: Background: Data reflecting the impact of photoprotection on cutaneous aging are scarce and mostly limited to fair skin.
Objective: To assess the effectiveness of a photoprotective product in counteracting the photoaging process in different skin phototypes over 1 year compared against a classical routine.
Materials and Methods: Two hundred and ninety Brazilian women aged 30-65 years, with skin phototype II-VI were equally randomized in two groups. Group 1 kept on their routine whereas Group 2 applied, twice daily, a photoprotective product (SPF 60, PPD = 24.1) replacing the one they routinely used. Volunteers reported the duration of their daily sun-exposure. Standardized photographs taken at D 0 and D 365 were analysed by 15 dermatologists to assess eight wrinkles and pigmentation signs.
Results: A global increase in severity was reported which was significant for Group 1. This increase was lower in Group 2 where only half the signs showed significant worsening. In Group 2 versus Group 1, the increase in forehead wrinkles, marionette lines, wrinkles created by ptosis and size of dark spot was significantly (p < 0.05) decreased by 30%-50%.
Conclusion: Daily application of a high photoprotective product significantly decreases the progression of skin aging signs after 1 year in skin phototypes II-VI.
(© 2023 The Authors. Journal of the European Academy of Dermatology and Venereology published by John Wiley & Sons Ltd on behalf of European Academy of Dermatology and Venereology.)
Databáze: MEDLINE
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