Methylcobalaminis pre-methylated, meaning it’s ready for your biochemistry to put to immediate use. Orally, vitamin B12 is used for treating pernicious anemia and preventing and treating vitamin B12 deficiency. It is also used orally for treating primary hyperhomocysteinemia, heart disease, male infertility, diabetes, memory loss, circadian rhythm sleep disorders, Alzheimer’s disease, depression, psychiatric disorders, osteoporosis, tendonitis, immunosuppression, AIDS, inflammatory bowel disease (IBD), asthma, allergies, vitiligo, preventing cervical cancer, and seborrheic dermatitis. It is also used orally for thyrotoxicosis, amyotrophic lateral sclerosis (Lou Gehrig’s disease), multiple sclerosis, age-related macular degeneration (AMD) periodontal disease, canker sores, tinnitus, hemorrhage, malignancy, and liver and kidney disease. Vitamin B12 is also used orally for aging, improving concentration, mood elevation, boosting energy, Lyme disease, maintaining fertility, and protection against the toxins and allergens from tobacco smoke.