They say if you aren't whitening, you're yellowing.

We associate beauty with youth, and for some reason baby teeth are just naturally freakishly white. So if you're not whitening, your smile might be making you look older than you are.

Teeth whitening has come a long way these past few years. Who hasn't heard of Crest WhiteStrips? Yes, they work, but only if you're VERY patient and willing to put up with the goo and mess in trying to keep them in place every time you use them. Speaking of, you'll need to use them a lot to see real results.

And we've all heard of ZOOM, the fastest way to whiten, especially how painful it is. The sensitivity lasts a long time due to the strength of the bleaching agent that's used.

So if you're looking for a solution to whiten quickly without sensitivity, there is a new at home device on the market that you should know about called the GLO Brilliant Personal Teeth Whitening Device, $199 Available at Sephora and gloscience.com.

This system was developed by a dentist, Dr Levine, and is a new approach to whitening using heat and light with a patented gel formula. Dr Oz named it one of his top anti-aging products and beauty editors swear it's the easiest way to whiten teeth without sensitivity.

It looks like an iPod, but easier to use. Charge it up, apply the gel to your teeth - connect the mouthpiece and press power for 8 minutes to get one step closer to whiter teeth. Up to 5 shades whiter in 5 days, without sensitivity. 

The set comes with 10 G-vials of gel which is enough for 40 applications or sessions. By purchasing additional mouthpieces everyone in the family, over 12 years old, can have beautiful pearly whites. I think Americans now have the whitest teeth in the world!

They say that beauty comes in all colors ... and so does the light we use on our skin. Blue light therapy is often used in clinics to treat and prevent acne and now there are gadgets available so you can do it yourself at home.

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One of the smallest devices using blue light therapy on the market that can really deliver is the Tanda Zap for $49. It uses the same technology as the in-clinic machines used by dermatologists and here's why it works.

A zit forms when a pore is blocked with oil according to Acne.org. Most of the time the oil will drain but if it becomes blocked bacteria are formed. One of the bacteria creating a zit is called P. acnes. It proliferates, becomes inflamed and swells. White blood cells rush in to try to fight it away, which is how you end up with a white head. 

Blue light therapy works on killing acne because it delivers oxygen inside the pore and P.acnes bacteria cannot live in an oxygen rich environment. Benzoyl peroxide, a commonly used OTC product used to treat acne works in the same way - by introducing oxygen into the pore, but it can be very drying to the skin.

No matter what your age, zits continue to pop up. I love the Tanda Zap to treat that unexpected little monster that shows up and I never travel without it!  This device is designed for spot treatment and has 1000 two minutes uses and can be used 2-3 times a day on the same area safely. There is also a larger version called the Tanda Clear if you are interested in treating a bigger surface area for $195. 

For more secrets and tips to look your best buy my book Face This: Real advice from real Models on Amazon, Kindle, Nook or iTunes.