glutathione skin purging does cause What To Avoid When Taking Copper Peptides Purging: How To – Why Does Glutathione Cause Acne

Hydroxocobalamin is safe to use during pregnancy and breastfeeding, with dosing generally following the standard schedule

J.FlemingS.BleschA.CarmichaelS

Collagen and extracellular matrix: GHK-Cu upregulates genes encoding collagen I, collagen III, elastin, decorin, and other extracellular matrix components that provide structural support to skin

When adverse effects occurred, they were typically mild and transient, with the most common being mild to moderate headaches (similar frequency to placebo groups), minor injection site reactions (redness, slight swelling), and gastrointestinal effects at higher oral doses (nausea, diarrhea)

Also, people with Lebers disease should not get B12 injections because it could make their condition worse