Isn't there a cheaper solution? Couldn't eating the right foods, in the right way, be a simpler, and ultimately more long-term way to stay looking and feeling younger? "You are what you eat," says nutritional therapist Ian Marber, aka The Food Doctor.
"You can't turn the clock back but you can slow things down. Every cell replicates from RNA and DNA. In order to keep the DNA in good condition, you want to protect cells from harmful free radicals. And for this you need to eat fruit and vegetables, which contain vital anti-oxidants like vitamins A, C, E and zinc.
"It doesn't have to be expensive," he adds. "I know people go on about so-called 'superfoods' which have a greater concentration of anti-oxidants, but two apples a day will give you plenty of vitamins and fibre. You just need to ensure a varied diet."
"The key is to remember we're omnivorous," agrees nutritionist Christian Lee, who is the national trainer for the Dr Nicholas Perricone cosmetics and nutrition empire. "Have you ever noticed how women age more rapidly than men?
That's because they don't eat enough protein. The days you don't eat protein are the days you age. The body can't store protein, but it needs it for cellular production and function.
"At each meal you should be able to hold up three fingers and say 'I've got a good source of protein (lean fish or poultry, nuts, seeds or tofu); an essential fatty acid (Omega 3 or 6, so that's coldwater oily fish, flaxseeds, linseeds) and a low glycaemic carbohydrate (fruit, vegetables, and wholegrains like quinoa, buckwheat and oatmeal)'. If you can say that, you're on the right road."
Perricone, a dermatologist, became America's most famous anti-ageing specialist with his "Three-Day Nutritional Face Lift", which extolled the virtues of eating wild Alaskan salmon twice a day, claiming its essential fatty acids would banish puffiness and tighten the skin. Uma Thurman, Heidi Klum and J-Lo are all fans.
In his new book Ageless Face, Ageless Mind, which has yet to reach the UK, Dr Perricone's team assert that up to 40 per cent of wrinkles are caused by dietary sugar.
"When you eat high glycaemic carbohydrates like bread, cakes and pasta, they turn into sugar in the blood so fast that the pancreas can't respond with enough insulin and the blood becomes saturated with sugar," argues Christian Lee. "The sugar needs to go somewhere so it attaches itself to the cell membranes.
When it does this to collagen molecules in the skin, it causes the collagen to become stiff and immobile and that's the birth of the wrinkle. The bad news is that it doesn't end there - the sugar then pumps out free radicals, causing a double whammy of damage.
The good news is you can prevent it - either by cutting out sugar or by taking a supplement of alpha lipoic acid, which is 400 times stronger than vitamin C and E combined."
So ditch the sugar, but don't forget the pigs' trotters.
FOODSTUFFS THAT KEEP YOU YOUNG
Spinach contains the pigment lutein, present in the retina, which helps maintain the health of the eye.
Tomatoes contain the anti-oxidant lycopene, which can protect the skin from UV damage from the sun.
Purple or red berries - such as blueberries, raspberries and strawberries - are full of anthocyanins which can help protect against diabetes, heart disease and cancer, and help maintain strong arteries.
Oily fish, such as fresh water salmon, herring, mackerel and sardines, and also flax seeds and linseeds, are the main source of omega-3 fatty acids, which can delay the ageing process of the skin.
Water: drinking more aids digestion and elimination; drinking too little can harm the complexion.
...AND SOME THAT AGE YOU
Carbonated drinks - along with tea, coffee, sugar, red meat and alcohol - can push the body's balance towards the acidic, meaning that alkaline minerals (such as calcium) are removed from bone stores to balance it, weakening the bones. Restricting them may help you keep stronger bones.
Nightshade vegetables - potatoes, tomatoes, chillies, aubergine and peppers - while often healthy in other respects, contain a chemical that studies suggest can activate pain and inflammation associated with arthritis. Avoiding these foods may help reduce it.
Refined carbohydrates - such as white bread, white rice, sugary cereals, pasta and noodles - contribute to the development of type II diabetes, which accelerates the ageing process and, if not controlled, can lead to a wide range of other health problems.
