If celebrities know one thing, it is how to stay beautiful. Just imagine the pressure they must be under to always look their best. In the case of the A-list actors and actresses, they can barely leave their homes without being photographed. Those photos end up on the covers of every magazine in every supermarket checkout in America. Poor Britney...

In recent times, a number of celebrities have launched their own skin care and cosmetic lines. It makes a lot of sense, if you think about it. Why not capitalize on the fame they have established in their respective careers? Smart celebrities have taken the endorsement scenario to another level entirely. Instead of endorsing existing products, many of them have simply launched their own lines.

Cindy Crawford is one such example. After a highly successful modeling career, Cindy dropped out of the modeling scene to settle down and start a family. A few years later, Cindy decided to capitalize on her name by launching a line of specialized skin care formulas. She partnered with the famous French cosmetic surgeon, Jean-Louis Sebagh, to create Meaningful Beauty. They offer a wide range of skin care products designed to reduce free radicals and stimulate the growth of collagen, both of which are necessary to fight the effects of aging. Well done, Cindy!

Fresh-faced freshmen, Mary-Kate and Ashley Olsen, are everywhere these days. These girls have been in the entertainment industry since they were just a few months old, and they have build up a veritable cosmetic and fashion empire in recent years. These girls are highly influential with the "tween" crowd. They have a wonderfully fun line of cosmetics for young girls, that includes metallic mascara and sparkle applications that are crayon-like in their appearance. Smart kids, indeed!

Jessica Simpson has also started her own line of skin care products. After her recent television and movie endeavors, there is no doubt that she should be exploring her career options. Her line of skin care products is called Dessert Beauty, and is produced in conjunction with a fellow named Randi Shinder. This line is more focused on lotions and lip balms with scents like strawberry and vanilla bean. It's good to see that Jessica has plan B in effect!