Toothpaste will clear up that zit—FALSE!

Models spread the word about this beauty myth years ago, making us all believe toothpaste could freshen breath and clear skin. But while toothpaste may dry out your zit, it doesn't finish the job. For better results, try an over-the-counter acne treatment containing at least 5% benzoyl peroxide.

Put on concealer first, then foundation—FALSE!

We all hate caked-on concealer! Try applying foundation first—this will even out the skin tone and give concealer something to stick to. As a result, you will probably use less concealer and get a more natural look.

Cold water will make your hair shine—FALSE!

Rinsing hair with cold water after washing was believed to seal off the cuticle and increase hair shine, but that theory is just a wives' tale. In fact, cold water constricts the blood vessels of the scalp, temporarily cutting off the supply of nutrients needed for healthy hair. Instead, make sure to rinse thoroughly to prevent dulling residue, keeping those locks looking brilliant.

Lip liner at all times—FALSE!

Lip liner is used to accentuate the edges of the lips and to correct the natural tendency towards imprecise lipstick application, but lip liner is not a must-wear with neutral shades. Experts suggest applying lip balm before lipstick for a more natural appearance. Just apply a bit of lip balm, and then apply lipstick to center of lips only. Next, spread the color toward the edges of lips using a lip brush; the lip balm will soften the color and create more natural stain than you'd get with a lip liner.v

Foundation should match the skin tone of your face—FALSE!

Surprising but true. You actually want to try matching foundation to the color of your neck—specifically, the area near your collar bone. Skin undertones in this area tend to contain more yellow, while the face contains more pink tones. And who wants aging and unnatural pink foundation?!

Rub your wrists together after applying fragrance—FALSE!

Some fragrance experts feel that rubbing crushes delicate fragrance molecules, and, as a result, you don't get the true scent. Typically, give it about ten minutes for the fragrance to dry naturally.