You can find the best anti-aging skin creams by using the process of trial and error. Or, you can rely on advice from friends. Or, you can do a little research about effective ingredients and look for them on the label. The information here will help start your research.

Using the process of trial and error is not very safe, especially if you have had any adverse or allergic reactions in the past. If you do decide to use a product, without first checking to see if it contains known allergens or irritants, you should test it daily for at least a week on an inconspicuous area of the body.

Allergens in anti-aging skin cream rarely cause irritation right away, unless the ingredients are very harsh. In most cases, it takes some time for the ingredient to build up in the skin's layers and cause irritation.

There are some products on the market that will not cause allergic or adverse reactions, because they contain no allergens, irritants or toxins. The ingredients are nutrients, like coenzyme Q10, plant-based oils like grape seed and extracts from plants like wakame kelp.

Actually, the best anti-aging skin creams contain coenzyme Q10, grape seed oil and wakame kelp, as well as other nutrients that are known to assist in the skin's natural rejuvenation processes. Protein is a nutrient that is very important to the skin's health and appearance. But, the typical anti-aging skin cream contains the protein collagen, which is not beneficial, at all.

Collagen is the structural protein that makes up the elastic fibers located far beneath the skin's outer layers. If applying more collagen would increase the number of elastic fibers that the body produces, there would be no need for collagen injections. But, it doesn't work that way. The protein cannot penetrate that deeply.

The best anti-aging skin creams contain the protein keratin, which makes up the majority of the skin's outer layers. It can be absorbed into the skin's cells and used by them to absorb water and for other purposes. Research has shown that the active form of the protein keratin, when applied topically, stimulates the production of new cells and fibers. It improves the skin's firmness and elasticity.

By increasing the number of new skin-cells, anti-aging skin cream containing the active keratin protein complex will increase the number of antioxidants within the skin's layers. Antioxidants are important for preventing and reversing the effect of free radical molecules.

Free radicals are naturally present within the cells, but normally they do no harm. As we age, however, their numbers increase, while the number of neutralizing antioxidants decreases. So, the radicals begin to damage the cellular membranes and eventually the DNA strands. This kind of damage is the primary cause of all of the signs of aging.

The active keratin formula has also been shown to inhibit inflammation. So it is beneficial for rosacea and redness. Only the best anti-aging skin creams will contain the ingredient. They may cost a little more, but if you want results, they're worth every penny.