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DSIP is studied in preclinical research on sleep biology, EEG slow-wave activity in rodent models, cortisol pathway research, and circadian regulation

GHK-Cu has been shown in cell culture to increase dermal papilla cell proliferation and protect these cells from programmed cell death (apoptosis), shifting the Bcl-2/Bax survival balance in favor of cell protection

That mechanism explains why some people feel full sooner, less interested in food, or queasy after eating

Taking a proton pump inhibitor or other medications that reduce stomach acid for reflux or ulcers, as well as taking metformin for diabetes, can reduce absorption of B12 in food or supplements