When you're working with something as sensitive as GHK-Cu, especially for cosmetic research applications, precision isn't just a suggestion
(PMID: 15531385), rats given BPC-157 0.0045 mg/lb showed significantly elevated serotonin synthesis in the substantia nigra reticulata and medial anterior olfactory nucleus following acute administration
References Raun, K., Hansen, B.S., Johansen, N.L., Thgersen, H., Madsen, K., Ankersen, M., & Andersen, P.H
Drugs.com says that some side effects associated with the injections include nausea, vomiting, indigestion, and mild diarrhea
Who this product is NOT for: If you only want general antioxidant support and don't have a specific glutathione goal, NAC supplements (which support your body's natural glutathione production) work for most people at a more accessible price point
If you are eating a lot of junk food, this is the first place to target