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.

Now most consumers are probably a bit suspicious, perhaps very suspicious of the claims made for the products on the shelves. Some of the "magic" ingredients are well known, others are not. In any event a good question to ask is how is the product going to react on my skin? There does not seem to be a simple solution to what is really the best product for the individual.

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.

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.