Everything in our bodies are connected, so when you consume antioxidants, eat nutritious foods and get plenty of sleep, you are more likely to display healthy skin as well,” Portela said.

Source: https://www.huffingtonpost.co.uk/entry/the-jury-is-still-out-on-whether-this-popular-skin-care-ingredient-actually-works_uk_64197e34e4b0bc5cb6524a8a