"We found benefits from vitamin D were dose-dependent," said Kurt Lu, MD, senior author on the study and Assistant Professor of Dermatology at Case Western Reserve University School of Medicine and University Hospitals Cleveland Medical Center. "We hypothesize that vitamin D helps promote protective barriers in the skin by rapidly reducing inflammation. What we did not expect was that at a certain dose, vitamin D not only was capable of suppressing inflammation, it was also activating skin repair genes."
The research was carried out by measuring gene activity in biopsies where the researchers also unleashed a potential mechanism behind how vitamin D aids skin repair. The results revealed that it increases the levels of anti-inflammatory enzyme, arginase-1. This enzyme enhances tissue repair after damage and helps activate other anti-inflammatory proteins.
While the experiments had positive results, however, Dr. Kurt noted, "I would not recommend at this moment that people start taking vitamin D after sunburn based on this study alone. But, the results are promising and worthy of further study."
Vitamin D is an important nutrient that your body requires to regulate the calcium and phosphorus levels of our blood. It is also known as the sunshine vitamin as exposure to sunlight converts the cholesterol present in the skin to Vitamin D. Sun exposure is the best source of Vitamin D but you can also derive it from foods like eggs, cod fish, soy milk and mushrooms. The Indian Council of Medical Research recommends supplementation of 10 micro-grams per day in case of minimal exposure to sun.