A typical B12 injection gives your body only cobalamin which is a nutrient you need to make red blood cells and keep your nerves healthy
Preclinical research suggests involvement in biological processes (angiogenesis, collagen formation, cellular signaling), which are linked to tissue healing and inflammation control
Furthermore, methylcobalamin is important in treating peripheral neuropathy, and diabetic neuropathy, and as a preliminary treatment for amyotrophic lateral sclerosis
However, it should not replace a proper diagnosis, imaging, physical therapy, rehabilitation, or other medically recommended treatment
It is often used alongside a densifying shampoo and fortifying conditioner as part of a complete hair strengthening system