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Wrinkle reduction Yes Regeneration and healing Yes Antioxidant effects Yes Improved skin elasticity Yes Safety of use Yes Scientific data and sources Research summary Level of evidence Preliminary Number of included studies: 20 8 studies 5 studies 4 studies 1 study 1 study 1 study Final comment: Although systematic literature analyses and results from in vitro and animal model studies indicate the effectiveness of GHK-Cu in skin regeneration and wrinkle reduction, there are no direct randomized controlled trials in humans
Females resilient to trauma exhibited higher pre-trauma levels of Roseburia, Oscillibacter , and Lachnospiraceae , suggesting that baseline enrichment of SCFA-producing bacteria may confer resistance to PTSD onset (Tanelian et al., 2023)
DeSimone, J., Heller, P., Hall, L
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