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April 2023 in “Langmuir” This study used molecular dynamics simulations to model the outer surface of human hair, illustrating complex behavior and potential adsorption interactions with fatty acids, which may inform cosmetic formulation development.
February 2020 in “Journal of Physics Conference Series” This study found that laser hair removal is optimal for light to moderate skin tones using 10-15 J/cm² at 755 nm and for dark skin with 4.5-10 J/cm² at 755-1064 nm.
January 2026 in “International Journal of Peptide Research and Therapeutics” In this study, adults with mild-to-moderate hair damage taking GPVGPS Collagen® daily for 24 weeks showed significant improvements in hair luster, strength, thickness, and density compared to placebo, with no safety concerns reported.
April 2019 in “Journal of Investigative Dermatology” This study found that ultraviolet radiation causes significant damage to human hair follicles, including increased cell apoptosis and oxidative DNA damage, but this damage may be mitigated by topical caffeine.
In this study involving 30 Kazakh women with systemic lupus erythematosus, the researchers found a strong correlation between disease activity (SELENA-SLEDAI scores) and organ damage (SLICC/ACR scores), which depended on disease duration and reliably reflected cumulative disease activity.