If you're like most people, you linger for a long time in the anti aging skin care aisle of your local drugstore, thinking to yourself, 'why are some wrinkle creams better than others'. You might even wonder whether the benefits touted by manufacturers of wrinkle creams is mere marketing.

Picking out the best wrinkle cream products on the market today, we began to compare the ingredients and found some surprising results. Some ingredients in these creams are better than others, causing products to be better than others.

What follows is our guide to the top six ingredients found in wrinkle creams, all of which have been shown to reverse the signs of aging. With this information at your fingertips, you can finally answer the question, "why are some wrinkle creams better than others".

Retinol: this is a type of Vitamin A and it has been used in wrinkle creams for many years. It continues to show up in the newest products on the market because it works. How it works is that it neutralizes particles called 'free radicals' that break down your skin and cause aging.

Coenzyme Q10: This enzyme, natural, not manufactured, acts as a food for skin cells, aiding in the regulation of their energy production. Studies show it relaxes the small lines around the eyes by making the skin cells healthier.

Tea Extract: Drinking tea provides antioxidants to our bodies, which promotes energy and health. Tea extract does this to skin when directly applied, reducing the inflammation that causes skin damage.

Alpha hydroxy: this is a mild acid that comes from fruit. It helps to strip away the very top-most layer of your skin (exfoliation) and therefore reveal the healthy beautiful skin underneath it. Exfoliation is great for our skin when we do it periodically, because it helps promote the growth of healthy skin and the removal of dead skin.

Copper peptide: this is an essential nutrient that our bodies need to be healthy. Copper particles are especially great for our skin because they increase the speed at which it heals from wounds. Over time, tiny invisible wounds caused by environmental conditions damage our skin and speed its aging, since it is never able to heal properly.

Kinetin: This substance comes from a plant hormone that promotes cell division. Kinetin is used in wrinkle creams to fade wrinkles and brown spots. Scientists say it makes skin and collagen grow quickly, healing and smoothing wrinkles by increased cell growth, filling in the 'valleys'.