National Academy Press, Washington, D.C., 1989 World Health Organization, Food and Agricultural Organization of the United Nations Vitamin and mineral requirements in human nutrition , Second edition, WHO, 2005
Never purchase products labeled as for research purposes only or not for human use as they may have unknown ingredients
Cyanocobalamin Injection, USP is a sterile solution of cyanocobalamin for intramuscular or subcutaneous injection. Each mL contains 1000 mcg cyanocobalamin. Each vial also contains Sodium Chloride, 0.9%. Benzyl Alcohol, 1.5%, is present as a preservative and Water for Injection q.s. Hydrochloric acid and/or sodium hydroxidemay have been added during manufacture to adjust the pH (range 4.5-7.0)
Still, experts agree we dont have enough large, high-quality studies in humans to prove that collagen supplements have a direct benefit for the hair
Overall, patients with fibromyalgia have a reduced quality of life and report having difficulties in everyday tasks, including bathing, lifting or carrying, and walking up stairs
Serum B12 may still appear normal