Antioxidants in Sunscreens: Which and What For?

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Jesus, A (Author) Other; Mota, S (Author) Other; Torres, A (Author) Other; Cruz, MT (Author) Other; Emilia Sousa (Author) FFUP; Almeida, IF (Author) FFUP; Honorina Cidade (Author) FFUP

Journal

Title: Antioxidants

Vol. 12

Final page: 138

ISSN: 2076-3921

Publisher: MDPI

Indexing

ISI Web of Knowledge - 26 Citations

Scopus - 32 Citations

Clarivate Analytics

Other information

Authenticus ID: P-00X-PE6

DOI: 10.3390/antiox12010138

Abstract (EN): Ultraviolet (UV) radiation promotes the generation of reactive oxygen species (ROS) and nitrogen species (RNS), resulting in skin damage. Cosmetic industries have adopted a strategy to incorporate antioxidants in sunscreen formulations to prevent or minimize UV-induced oxidative damage, boost photoprotection effectiveness, and mitigate skin photoaging. Many antioxidants are naturally derived, mainly from terrestrial plants; however, marine organisms have been increasingly explored as a source of new potent antioxidant molecules. This work aims to characterize the frequency of the use of antioxidants in commercial sunscreens. Photoprotective formulations currently marketed in parapharmacies and pharmacies were analyzed with respect to the composition described on the label. As a result, pure compounds with antioxidant activity were found. The majority of sunscreen formulations contained antioxidants, with vitamin E and its derivatives the most frequent. A more thorough analysis of these antioxidants is also provided, unveiling the top antioxidant ingredients found in sunscreens. A critical appraisal of the scientific evidence regarding their effectiveness is also performed. In conclusion, this work provides an up-to-date overview of the use of antioxidants in commercial sunscreens for a better understanding of the advantages associated with their use in photoprotective formulations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 22