Liver Toxicity: Due to its oral nature, it can put a strain on the liver, potentially leading to liver damage or dysfunction.Hormonal Imbalances: It can suppress natural testosterone production and cause estrogenic effects like water retention and gynecomastia (male breast tissue enlargement).Androgenic Effects: Users may experience side effects such as acne, oily skin, and male-pattern baldness.Cardiovascular Issues: Use can lead to high blood pressure and negative changes in cholesterol levels, increasing the risk of heart disease and stroke
Abdominal cramping or discomfort can manifest as a feeling of fullness, bloating, or mild cramping in the upper abdomen
Cons of Injections Requires Medical Supervision: You need a prescription and a qualified professional to administer the shot
Cell Metabolism , 31(3), 529544
76,77,78,79,80,81,82,83 Not all studies reported which form of B12 was used, but all that specified form had used methyl-B12
However, it is said to be less painful than even CoolSculpting, which is easily tolerated by most patients