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.

We look in the mirror and take careful note of the crow's feet, laugh lines, worry lines, wrinkles and creases that we've been collecting over the years. Like rings on a tree, these lines and creases serve to highlight the fact that we are getting older. It doesn't help to look at a picture taken of us at a young age in which none of these signs were visible. A steady stream of anti-aging moisturizers have entered the marketplace, "guaranteed" to do effective battle against the dreaded crows feet and other signs.

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.

So, why are some wrinkle creams better than the others? The answer is most likely found in the concentration of the active ingredients. A cream might claim to contain retinol, but it could be present in such a small amount that it would be ineffective. On the other hand, a cream with a higher percentage of retinol might well be very capable of refreshing and plumping the skin for that dewy, youthful look.

It never hurts to ask the question "Why are some products better than others? or "Which wrinkle creams would be most effective?" Asking the question leads to getting the facts you need to make a choice, second best to the "Fountain of Youth" but a good choice nevertheless.