This is a guest post by Amanda Kidd.

Skin cancer is caused by the ultraviolet rays that penetrate through your skin and mutate the skin’s DNA. Exposure to sunlight is good to a certain degree as you benefit from Vitamin D, but excessive exposure can cause more harm than good. With the advent of sunscreen creams and lotions, we are given a protective layer that prevents us from sunburn, but the question here is whether sunscreens prevent our skin from damage. The answer to this would be a yes and a no.

There are a variety of creams in the market that offer protection against two kinds UV — UVA and UVB — with both causing cancer. The SPF indications on the packaging refers to the sun protection factor, quantifying the extent to which the cream should protect you from sunburn. The most critical thing to look for on the packaging would be whether the cream is a broad-spectrum sunscreen, protecting against UVA & UVB rays.

Doctors believe that the right kind of sunscreens can prevent skin cancer to a large extent, but recommend that the application of such creams should be in addition to wearing protective clothing, sunglasses and keeping in the shade as much as possible. However, wearing a sunscreen lotion with broad-spectrum protection and a high SPF should not encourage you to spend more time in the sun. Tests conducted on both animals and humans have also produced evidence that sunscreens have the potential to protect against skin cancer.

If you go to a pharmacy and peruse through the variety of sunscreens on the shelves, you may be surprised to find that the most effective ones are often the cheapest. Specialized creams tend to cater to particular customers who are either focused on how the product smells or feels on the skin with effectiveness being a secondary concern.

However, recently conducted tests on animals state: “the composition of sun blocks — particularly oxybenzone, disrupts the function of the endocrine gland which may cause an adverse impact on sexual health and reproduction.” However, research is still on-going but so far, as evidence shows the benefits of sunscreens outweigh the the risks. However, it is worth noting that pregnant women and children should avoid sunscreens and sunblocks with oxybenzone as a precautionary measure.

After considering the estimated deaths from skin cancers, which is about 11,790 each year, as well as the financial, emotional and health tolls of fighting cancer, sunscreens and sunblocks are the cheapest and most effective way to avoid skin cancer.

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Amanda Kidd is a blogger by profession who believes in eco friendly existence. Recently she was really impressed by a green technology concept to reduce Environment Pollution in which the gadgets converted kinetic energy into renewable energy for a clean recharge and also a step ahead to power save.

Photo courtesy of Robert S. Donovan.

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