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4 Most Common False Beliefs of Sunscreen!

Dr. Richa Thakur 87% (24 ratings)
MD - Dermatology, MBBS
Dermatologist, Patna  •  12 years experience
4 Most Common False Beliefs of Sunscreen!

Exposing your skin to harmful ultraviolet rays of the sun can have devastating effects on your skin,including wrinkles, sunburn and even skin cancer. So, using a sunscreen every time you step outdoors and using it correctly is of vital importance to have healthy skin. However, most people have different misconceptions about sunscreen usage. Read on to find the real facts behind these widespread sunscreen myths…

1. You don’t need to apply sunscreen if your makeup contains SPF
If any of your makeup products like foundation or powder contains SPF, do not assume that it can replace your sunscreen. Makeup containing SPF cannot protect your skin entirely as cosmetics are generally applied lightly,and mostly doesn’t cover places like T-zones, earlobes or hairline. To fully shield your skin from the sunrays, it’s necessary to apply sunscreen or moisturizer with at least SPF 30 before putting makeup on. It is advisable to apply the sunscreen half an hour before stepping out for maximum benefit.

2. Putting sunscreen on your skin once is enough to protect you throughout the day
Most people apply sunscreen only once before heading out of the house, and don’t reapply it again throughout the entire day.Contrary to popular belief, this does not provide protection for the entire day as most sunscreens lose their effect with time. To ensure that your skin remains protected you need to reapply sunscreen once every 2 hours, and once every 40-80 minutes if you are engaging in activities like swimming and exercising.

3. Waterproof sunscreens won’t wash off
Even if your sunscreen is waterproof, you need to reapply it at regular intervals if you are pursuing water sports like swimming or are the kind who washes their face frequently. When a sunscreen is typified as waterproof, it actually means that the composition of the sunscreen makes it suitable for functioning for a maximum of 1 hour and 20 minutes under water. Moreover, sunscreens containing a ‘water-resistant’ label can bear water immersion up to at most 40 minutes. So, irrespective of whatever the label of the sunscreen mentions, you need to reapply sunscreen every hour to protect your skin effectively.

4. You do not need to apply sunscreen in winters or you are when indoors.
Winter skin is relatively more sensitive than summer skin which is tanned. If one is in hilly areas or snow covered regions there is reflection of UV light from the snow that causes more skin damage. Also glass can allow UV rays to pass through and indoor lighting can also be a source of UV exposure, therefore you should apply sunscreen even when you are indoors. If you wish to discuss about any specific problem, you can consult a Dermatologist.

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