Sunscreens contain inorganic or organic compounds called ‘filters’. These filters scatter and/or absorb ultra-violet radiation (UVR), resulting in reduced photo-ageing and keratoses. Despite these benefits, there are both ecological and human health concerns with sunscreens.
Professor Michael Holick, the world's leading expert on vitamin D research, responds to some of the more recent negative studies that seem to be so readily picked up by the media.
He then goes on to provide a roundup of some of the exciting, upcoming trials of this vitally important nutrient.