Drawing on animal studies, the label estimates that an intravenous dose up to 30 mL of the 0.9% solution may be safely given to an adult without toxic effects, while an estimated 9 mL given to a 6 kg infant or neonate is potentially capable of producing blood pressure changes
Medsafe warns that individuals should not use it and to seek medical help if needed. GHK-Cu is a peptide touted for everything from reducing wrinkles and hair growth to fading scars it is not approved by Medsafe either

BENEFITS OF VITAMIN B12 Injections Also known as the energy vitamin Can help with memory, heart, nervous system, and mobility Can help boost energy and metabolism Also known as the sunshine vitamin Can help with bone health, heart health, and the immune system Can help reduce depression, joint pain, and migraines Can help maintain a healthy weight and reduce the risk of diabetes Vitamin injections can help correct nutritional deficiencies Vitamin injections can help relieve health symptoms Vitamin injections can help increase energy and combat fatigue Vitamin injections can help remove environmental toxins from the body SIGNS of VITAMIN B12 DEFICIENCY Fatigue, weakness Nerve damage with numbness, tingling in the hands and legs Memory loss, confusion Dementia Depression Seizures Megaloblastic anemia Pernicious anemia VITAMIN D3 We naturally produce Vitamin D in our body
How does your current nutrition strategy address your internal biology
Xiao et al
Case Reports in Neurology