GLP-1 users most often lack vitamin D, iron, vitamin B12, calcium, magnesium, and fat-soluble vitamins A, E, and K due to reduced food intake and changes in digestion
So far, some studies in people using semaglutide for diabetes or weight loss have reported increased energy levels
Semaglutide doesn't directly damage the gut microbiome, but it changes the gut environment through slowed motility, altered eating patterns, and reduced fiber intake

Beyond wrinkle reduction, the broader body of GHK-Cu research shows: Skin thickness: A 2015 review in Biomedical Research International confirmed GHK-Cu's ability to increase skin density and thickness reversing the dermal thinning that characterizes photoaged skin Wound healing: Multiple studies confirm GHK-Cu accelerates wound healing by 3040% compared to untreated controls the same repair mechanism that drives anti-aging results Hair follicle activation: GHK-Cu extends the anagen (growth) phase of hair follicles and increases dermal papilla cell activity producing measurable increases in hair thickness and density Inflammation reduction: GHK-Cu consistently demonstrates anti-inflammatory effects, downregulating TNF- and other pro-inflammatory cytokines that drive skin aging and sensitivity Antioxidant activation: GHK-Cu upregulates the skin's own antioxidant defense systems, providing protection against UV-generated free radicals GHK-Cu reduced wrinkle volume by 55.8% compared to control and achieved a 31.6% greater reduction than Matrixyl 3000

Naturally produced in almost every cell, glutathione plays a leading role in detoxification, antioxidant defence, inflammation regulation (and even graceful aging)