Consume more good fats and calcium. Take 2-4 citrate or chelated calcium tablets, preferably with magnesium added. Try also mixing flaxseed oil into yogurt, before or during your stint in the sun. There are natural ways to increase the production of melanin, a natural sunburn skin protectant. Take 2 capsules of L-Tyrosine two times a day and 5 to 6 mg. of chelated copper.
Tyrosine also helps with mood, alertness and stress resistance.
Copper, however, can worsen depression in some individuals who are prone to copper excess. Most people can use it safely during the suntan season without incident. Antioxidants, like vitamins C, E, and beta-carotene have been demonstrated to reduce the risk of developing skin cancer. A diet high in fruits, veggies and certain herbs is also important. The more natural sunscreens and sun blocks are found in health food stores.