It’s common knowledge that sun exposure is a factor in the progression of rosacea. The sun produces Vitamin D in the body which is needed for the prevention of many immune system diseases including multiple sclerosis, osteoporosis, rickets and osteomalacia- a softening of the bones. Vitamin D is vital as it aids in the absorption of phosphate and calcium in the body. It also plays a role in balancing the pH in the body to maintain a strong immune system.
Recent studies indicate that rosacea sufferers may have as much as 25% higher levels of Vitamin D in their body in comparison to non-rosacea sufferers. What isn’t clear is if having rosacea creates a chemical imbalance which causes a higher level of Vitamin D or if having higher levels of Vitamin D create the imbalance in the skin causing rosacea.
Another study conducted on the role of Vitamin D found that Vitamin D3 is a component in the regulations of the molecules in the skin which have been identified as a possible cause of pimples and pustules common to rosacea. These molecules called cathelicidins are part of the protective outer barrier of the epidermis responsible creating a shield on the outer most layer of skin to prevent bacteria and germs from entering the body.
There is not enough research yet available to indicate the significance of these early findings, but it is certainly something to consider if you are a rosacea sufferer and take vitamin supplements.