Sentinel Vitamin B-12 is a dietary supplement containing 500 micrograms of Vitamin B-12 per tablet, with 100 tablets per bottle. This essential nutrient supports red blood cell formation, DNA synthesis, energy production, and proper nervous system function. Vitamin B-12 is crucial for maintaining overall health and wellness. The supplement comes in tablet form packaged in a dark amber bottle with a safety seal to protect the vitamin from degradation. This dosage may be particularly beneficial for vegetarians, vegans, older adults, or those with B-12 absorption issues. As with any supplement, consult with a healthcare provider before use.