4 citations
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September 2012 in “Journal of dermatological science” The hair follicle's connective tissue is a key source of a certain collagen in human scalp skin.
June 2020 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that low-level pulsed wave red light stimulated collagen and ATP production in human fibroblasts with significantly shorter treatment time than continuous wave light, suggesting enhanced consumer compliance for skin treatments.
59 citations
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September 2011 in “Lasers in Medical Science” This study concluded that the 800-nm diode laser is effective in enhancing skin structure and collagen expression via the TGF-β/Smad pathway, suggesting potential for non-ablative rejuvenation.
April 2016 in “Journal of Investigative Dermatology” This study found that gypenosides from Gynostemma pentaphyllum increased procollagen synthesis in vitro and reduced periorbital wrinkles by about 14% in a clinical trial with 24 women.
December 2025 in “Pharmaceutics” In this study, araliadiol, a plant-derived compound, exhibited senomorphic effects in three dermal fibroblast senescence models, suggesting its potential as a topical treatment to mitigate skin aging by reducing certain senescence-related markers and increasing procollagen type I content.