Sentinel Folic Acid 400 mcg is a dietary supplement containing 100 tablets of folic acid, an essential B-vitamin. This supplement supports healthy fetal neural tube development during pregnancy, aids in red blood cell formation, and contributes to normal homocysteine metabolism. Folic acid is particularly important for women who are planning to become pregnant or are in early pregnancy, as it helps prevent neural tube defects. The recommended dose should be taken daily, ideally starting before conception and continuing through the first trimester of pregnancy. The 400 mcg dosage aligns with common dietary supplementation guidelines. The product comes in a sealed amber bottle to protect the tablets from light and moisture.