Vitamin D3 2000 supports healthy skin tissue, immunity, calcium, bone health and sleep. 

Ross. J Barr Vitamin D 2000 iu (international units) formula is a natural food-state supplement designed for optimal absorption & utilisation, and benefitting from active metabolites which are necessary to activate vitamin D activity.

Vitamin D maintains the balance of calcium in our blood and bones, which in turn supports building and maintaining bone structure. 

As we age we just don't see the effects of collagen loss, but also bone density which further impacts the appearance of skin aging.