Retinol is a derivative of vitamin A. It is one of the most tried-and-trusted skincare ingredients out there and has been added to anti-ageing products for decades. Despite this, many people are too scared to use it. Why? If it’s not used properly, it can cause your face to fall off (well, peel off, but equally horrifying in our books). This is because retinol is strong and, if used incorrectly, can cause skin to become red and irritated. It isn’t pretty and it can cause damage that will require months of tending to. But it doesn’t have to be this way. For a break down of all the things you should to know about this antiaging vitamin, click here.