Commonly reported side effects (incidence 5%) include: nausea, diarrhea, constipation, vomiting, injection site reactions, headache, low blood sugar, heartburn, fatigue (sleepiness), dizziness, stomach-area pain, increased lipase (a pancreatic enzyme), upper stomach-area pain, fever, and stomach infection (gastroenteritis)
Possibly better effects on fat metabolism (though research is ongoing) thanks to GIPs involvement
In people healing from a digestive disorder, they recommend up to 1x/day
Frequently asked questions Choosing this product What makes Shiro Advance Premium Glutathione different from other glutathione products
Others simply don't respond well to copper peptides and should explore alternatives