We've all heard of that mythical spring, a drink from which gives you glowing skin, glossy hair, youthfull strength and flexibility - The Fountain of Youth. If such a fountain existed, it would likely have long ago been drained and bottled.

Who wouldn't want to recapture their youth - or at least preserve it as long as possible? There is a wide variety of products, from wrinkle creams to vitamins, designed to do just that. The brisk sales of these anti-aging products demonstrate that, indeed, many women (and men!) intend to keep their skin looking as youthful as it can, well into middle age.

It doesn't help to look at a picture taken of us in our youth. We see the soft, smooth skin and the cracks, lines, and wrinkles we see in the mirror today are not to be seen in the picture. So we look to the shelves of our grocery store, drug store, or health foods store where we find the anti-aging creams designed to do battle against our laugh lines and crow's feet.

Some consumers eagerly try a number of the products which claim to satisfy our search for youthful skin. Others, most consumers perhaps, are more cautious. The ingredients of many products are well known, but many are not and how they will react with our skin is an unknown. Like the Fountain of Youth, if a product really was "the" solution, it would probably be impossible to keep it stocked on the shelves. So how do you know what, if anything, is best for you?

An active ingredient such as retinol, a form of vitamin A, is the basic active ingredient for many wrinkle creams and retinol- based creams are indeed often more effective in the battle against wrinkles than is the case for other products. Retinol promotes the development of new surface cells and also increases the amount of collagen in the skin, the combination reducing though not completely eliminating, wrinkles.

Another ingredient that is popular in anti-aging moisturizers is alpha hydroxy acid, or AHAs. AHAs are the active ingredient in chemical peels, but the concentration in anti-aging cream is very low, resulting in only a slight peeling effect. The use of AHAs in wrinkle creams effects a glow to the skin by exposing the new cells underneath.

The mere presence of one or both of these active ingredients does not answer the question of which product is better. The degree of concentration of the active ingredients is much more likely to determine the effectiveness. A product with a higher concentration of retinol may be much more effective in producing a more youthful look than a product containing only a small amount of retinol.

If you're in the market for an anti-aging cream, make sure you have the facts. Now that you've asked, 'Why are some wrinkle creams better than others?,' you've armed yourself with the information you need to discover the Fountain of Youth for yourself!