January 2026 in “Aging and Disease” This study found that, despite confirming MC1R expression and functional cAMP signalling, α-MSH treatment did not alleviate UVA-induced stress in adult dermal fibroblasts, suggesting that α-MSH-MC1R may not directly protect against UVA-induced photoaging in these cells.
14 citations
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October 2021 in “Dermatology and Therapy” This study found that photoexposure significantly increased the gene expression of altered elastin, MMP12, and LOX, as well as the protein expression of tropoelastin and fibrillin-1, in skin models.
26 citations
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April 1998 in “Journal of Investigative Dermatology” This study in transgenic mice found that the combination of SPF 15 sunscreen and a UVA filter provided strong protection against UVA-induced elastin promoter activation and thus may reduce photoaging.
July 2026 in “Clinics in Dermatology” This review discusses the potential benefits of topical melatonin in aesthetic dermatology, including its antioxidant and protective properties for skin aging and photoaging, while also noting varying strengths of evidence across different skin conditions.
7 citations
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March 2023 in “Antioxidants” This study confirmed the antioxidant role of rosemary, suggesting its potential use in treating inflammatory and infectious skin conditions, but emphasizes that more large-scale controlled trials are necessary to fully understand its clinical impact.