Considering a cosmetic procedure but don’t want to go under the knife? Well, these days there are plenty of alternatives. Top doctors give their top tips. If you’ve started to notice your face is heading South as the years go by, chances are you’ll be looking for something to slow it’s progress. But is surgery the only option? In many cases, advancements in aesthetic medicine mean you can now turn back the clock without going anywhere near an operating table. Dr Rupert Critchley, director of the Viva Skin Clinics chain in London, says non-surgical aesthetics “is really beginning to bridge the gap…