Our 30s are a period of denial-meets-reality on so many levels: how many shots we can down, the fact that we now hate clubbing and we see our physiotherapists as much as we do our best friends.

But one area that we seem to overlook is skincare, and how we treat our skin in our 30s heavily dictates how good/bad it looks in our 40s.

Here, expert Kate Somerville explains the two areas you really need to focus on and why...