topicCollagen Skin Randomized Trial
claimPhotoaging may not only affect quality of life, but also create substantial financial burden for patients, making its prevention and the practice of evidence-based treatments essential.
evidence level3
citationTsai Jerry (2026)
sourcePhotoaging: Update on Pathogenesis, Prevention, and Treatment
topicCollagen Skin Randomized Trial
claimUVB, which primarily affects the epidermis and superficial dermis, is classically associated with the development of skin cancer through creation of cyclobutene pyrimidine dimers, pyrimidine-pyrimidone (6-4) photoproducts, and reactive oxygen species (ROS), as well as suppression of immune surveillance against tumors.
evidence level3
citationTsai Jerry (2026)
sourcePhotoaging: Update on Pathogenesis, Prevention, and Treatment
topicCollagen Skin Randomized Trial
claimECM degradation from chronic sun exposure also results in increased skin fragility and susceptibility of cutaneous vasculature to minor trauma, clinically manifesting as purpuric lesions known as solar purpura.
evidence level3
citationTsai Jerry (2026)
sourcePhotoaging: Update on Pathogenesis, Prevention, and Treatment
topicCollagen Skin Randomized Trial
claim1 2 Skin aging occurs through the passage of time (intrinsic aging) accompanied by environmental damage (extrinsic aging).
evidence level3
citationTsai Jerry (2026)
sourcePhotoaging: Update on Pathogenesis, Prevention, and Treatment
topicCollagen Skin Randomized Trial
claimNutraceuticals represent promising strategies for preventing, delaying and addressing premature aging of the skin, especially as women advance in years (particularly after 30 years of age, when estrogen levels begin to decline, and remarkably after menopause when estrogen production ceases from the ovaries).
evidence level4
citationArbex P (2026)
sourceCollagen, Curcumin, and Glutathione to Enhance Dermal Health in Aging Women with Declining Estrogen Levels -A Narrative Review.
topicCollagen Skin Randomized Trial
claimThis review is part of a larger project, and we present this companion review, which provides a detailed examination of the literature beyond polyphenols and/or phytoestrogens for estrogen-deficient skin.
evidence level4
citationArbex P (2026)
sourceCollagen, Curcumin, and Glutathione to Enhance Dermal Health in Aging Women with Declining Estrogen Levels -A Narrative Review.