Sentinel B12 is a dietary supplement containing 100 mcg of Vitamin B12 per tablet, with 100 tablets per bottle. This essential nutrient supports red blood cell formation, DNA synthesis, and proper nervous system function while helping maintain healthy energy levels. Vitamin B12 is crucial for various bodily functions and may be particularly beneficial for vegetarians, vegans, older adults, and those with absorption issues. The supplement comes in an amber bottle with a safety seal to protect the vitamin from degradation. The 100 mcg dosage provides a moderate supplemental amount that can help maintain adequate B12 levels when taken as directed. As with any supplement, consult with a healthcare provider before use.