From old wife’s tales about stretch marks to urban legends, the myths and stories about skin care that some believe to be true have many an expert confounded.Five common skin care myths are explained below.

1.Tanning beds help prepare your skin for the summer sun. This is not only false, but dangerous. Even tanning booths that do not have UVB rays still generate concentrated UVA rays, which can lead to skin cancer and premature wrinkles and aging of the dermis. A base tan does not mean your body has produced more melanin, it just means the melanin you have has come closer to the surface. Getting a base tan does not protect you from further sun damage, and can be in and of itself quite harmful to your skin.

2. You can prevent stretch marks with olive oil. Unfortunately, there is nothing you can apply to your skin to prevent the appearance of stretch marks. A healthy diet, good hydration and regular exercise will improve the elasticity of your skin. Stretch marks occur when the sub-surface splits due to over-stretching, such as when you gain excessive weight or are pregnant.

3. You can stay in the sun longer if you use a higher SPF sunscreen. Believe it or not, an SPF of 15 will block about 93% of harmful UV rays. A 40 SPF only blocks 97% of rays - an increase of only 3%. A higher SPF does not last longer than a lower one, and should be re-applied as regularly as a lower SPF sunscreen. Make sure your sunscreen blocks both UVA and UVB rays, and put it on before you go into the sun.

4. Dark skin tones don’t need sunscreen. This is another unsafe myth that should be debunked immediately. Darker skin tones do contain higher levels of melanin, but that does not give them additional protection from the sun. You should still protect yourself with sunscreen, as the risks of skin cancer, although slightly lower, still exist for darker skin tones.

5. You can get acne from eating chocolate. No one type of food will lead to acne, and while a healthy diet will promote a healthy skin, what you eat does not cause acne. Acne occurs when the dead cells that the skin sheds stick together and block the various gland openings in the skin. The natural oils in the skin then back up, and bacteria takes advantage of this situation, making matters even worse. So you can keep eating chocolate - in moderation of course!

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