Does drinking water improve your skin? Claudia Hammond parses the science:
A review by the dermatologist Ronni Wolf at the Kaplan Medical Centre in Israel found just one study looking at the effect of long-term water intake on the skin. But the results were contradictory. After four weeks, the group who drank extra mineral water showed a decrease in skin density, which some believe suggests the skin is retaining more moisture, while those who drank tap water showed an increase in skin density. But regardless of the type of water they drank, it made no difference to their wrinkles or to the smoothness of their skin.
The Dish 