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.

We would all like to recapture our youth, if not eternally at least for a time. While The Fountain may be the stuff of legend, we've created a variety of products designed to accomplish much the same. Anti-aging products ranging from vitamins to wrinkle creams and a host of other concoctions sell at a brisk pace as not just women but men as well try to keep their youthful looks for many years to come.

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.

Of course, consumers are frequently dubious of any product that makes such claims, and with good reason. What are these magic ingredients, and how do they work? Can anyone really bottle the freshness of teenaged skin? How can you tell which is the best wrinkle cream?

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.

Reduction of wrinkles is one step towards achieving more youthful skin. Another popular active ingredient is alpha hydroxy acid - AHA. AHA is a peeling agent. It is present in a very low concentration to avoid damage to the skin, AHA removes the dead skin cells at the surface, exposing new cells beneath. The result is the adding of a glow that we associate with youthful skin.

Two products may claim to contain the above mentioned active ingredients yet do not necessarily provide the same results. The answer is often found in the degree of concentration of the active ingredients. One product may contain only a trace of retinol. A second product, containing a much higher concentration of retionol mayingedients are present.

Asking the question leads to gaining the facts you are after. Asking "Which wrinkle cream is best?" leads you to doing some investigating. The result may not be as good as the Fountain of Youth would provide but may still be the best choice available.