When you start to consider crow's feet, laugh lines, furrowed brows, and those oh-so-fun wrinkles, it's easy to forget that your face isn't the only thing that needs anti-aging attention. When was the last time you picked up a youth renewal product for your hair? It may technically be dead once it leaves your scalp, but hair still shows signs of aging over time. So how do you get your hair to look more youthful?

Nexxus Youth Renewal Elixir, SRP $17.99, may be the answer. This lightweight leave-in treatment promises to rebuild hair's strength by reducing breakage and making hair look more youthful and vibrant in just seven days. Is it really possible to get back that shiny, thick head of hair you see in old photos of yourself? We sent samples of this treatment to 50 women to see if it could really revitalize and renew their hair. Click ahead to see if the elixir lived up to its claims.

"My hair is thinning after menopause and damaged from perming. I love how the Elixir immediately transforms my hair. Instantly, my hair looks and feels thicker and fuller. I love this stuff." -- beverly_livingston_moore

"I have over-processed hair and I live in an arid environment, so moisture for my hair and skin is extremely important. This elixir made my hair extremely soft and manageable. I put a few drops on freshly shampooed hair, and again, a few drops on dry hair. I cannot believe my hair is this shiny, and it actually made my hair soft and lustrous. Even the color is better and more vibrant. It is non-greasy, and I actually felt like my hair absorbed it. This is a real problem solver for my hair. I am going to purchase the full-sized product. Nexxus products have always been very successful for me." -- CaroleVonAllten

"I have really dry, dull hair from styling and coloring. I have used this product for a week and can already see a huge improvement on the feel and look of my hair. I actually received a compliment from a friend the other day. She said, 'What have you done to your hair? It looks great!' I told her about the Nexxus Youth Elixir that I received to try. She is definitely interested too! This product is fabulous! I am so glad to try a product that really works!" -- Tacoma123

"You can't help but notice the great smell it has. I love it, so floral! After applying Nexxus, my hair felt soft and looked healthier. I am going to purchase the full size product because my hair really could use it!" -- elena62