My favorite I also like to order the skinny shot, which I just ordered today Truly amazing
Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives
What Is the Concentration of GHK-Cu in Your Vial
[2] Chang, C.H., et al
If they present with fatigue, brain fog, or metabolic concerns, NAD+ or Semax is the more targeted starting point