After a beautiful autumn, the leaves are dropping, the sun is making less and less of an appearance, temperatures are plummeting and the days are getting shorter...there's no escaping the fact that winter's upon us! 

The season of open fires, cosy nights in, lazy Sunday afternoons and Christmas parties offers much to look forward to, but it's easy to associate winter with low energy, low morale and stress, to say nothing of dull, lifeless skin and frizzy hair...

Because sometimes diet alone isn't enough to offset the ravages of seasonal change, many of us resort to supplements. But are they effective? How do you choose the right one for your needs? What are the legalities? Here are the answers to frequently asked questions and our guide to using supplements to offset the effects of winter on your body, mind and beauty.