FERN-D is a brand name for the generic “cholecalciferol” or better known as Vitamin D3. It can help boost your immune system to fight against COVID-19. Study shows that people who have high levels of vitamin D have a lower risk of having diseases like cancer, diabetes, tuberculosis, bone fractures, muscle weakness, and many more. Many of us are not aware that almost all diseases that caused death are mostly linked to Vitamin D Deficiency. If you don’t get direct sunlight every day, then you might be at risk of this deficiency. Save yourself and your loved ones from suffering in the future! Take FERN-D every day to make sure you get the vitamin D you need every day! Even without the sun! Each Softgel capsules contains 1000 IU derived from ingredients from Europe and USA.