Folic Acid 400mcg x 240 Tablets; Lindens. Why Lindens?. The B vitamin Folic Acid is an important vitamin for everyone. Folic acid works with Vitamin B12 to form healthy red blood cells. Folic Acid. Folic Acid, Dicalcium Phosphate, Microcrystalline Cellulose, Anti-caking Agent (Magnesium Stearate).