Vitamin D3 helps maintain a healthy immune system, and may assist by helping to regulate lymphocytes and other immune cells.*

Vitamin D3 helps your body absorb calcium so you can maintain healthy bones and teeth.*

It’s difficult for your body to produce and absorb vitamin D due to limited sun exposure.* This 25mcg (1000 IU) vitamin supplement delivers a body-ready, easily absorbed form of vitamin D.

Vitamin D supports neuromuscular function to help maintain your active lifestyle.*

It is a clean^† health supplement and is non-GMO^, and free of artificial flavors, gluten-free, wheat-free, dairy-free, and lactose-free.

Sundown products are always third-party tested for safety, quality, and purity. We are a proudly American company with millions of happy customers since 1977.