Why to use a sunscreen/ sunblock ?

by tejas on August 6, 2011

Do you use a sunscreen? I asked many people whom I meet daily, but most of them (almost 60% people) told me they don’t, and amongst those, most of them were men and housewives. When I asked them why, some of them told me they don’t know why to use it or some of them only knew little about it Struggle . In fact most housewives told me that they are indoors and do not face sun directly on regular basis, and some  ladies told me , they are always in air conditioned rooms and hardly face sunlight. Many told me that they use it only in summers and the list of excuses went on.

Let me now  tell you why a sunscreen or a sunblock is important for everybody(even kids).Many of us think that a sunscreen/ sunblock will only prevent or reduce tanning of skin, but the fact is, it not only helps control tan but also controls skin ageing, sunburns, and even skin cancer caused due to over exposure in sun.Let me first explain you why does our skin tan  and what is SPF (written mostly on all sunscreen and sunblock).  Lamp

Well, SPF means Sun Protecting Factor.Our skin has a natural protecting factor from sun to an extend.When you step out in sun for the first 20 Min’s skin can bear sun rays, after that it starts secreting Melanin, which a natural colour pigment in skin and gives colour to skin.When melanin is produced and secreted it protected your skin further but in return it gives more colour to your skin as it is  a colour pigment and that is how skin tans.The more you are in sun Sun , the more amount of melanin produced , the more you tan.Gradually this excess melanin secretion results in dark patches on skin which is known as hyper pigmentation.

Why to use a sunscreen/ sun block?Harmful effects of sun on our skin.

The sun along with light also radiates harmful ultraviolet rays(UV Rays).There are different types of UV Rays which penetrate our skin during sun exposure. They are UV  ’A', UV ‘B’ , UV ‘C’.These rays cause skin ageing,skin burn, skin cancer respectively.So A stands for Ageing, B stands for Burns, and C stands for Cancer Shock .Little UV ‘C‘ radiations reach the earth as it is filtered out by the ozone layer. A sunscreen / sunblock creates a shield between your skin and these rays.Hence it is important to use a sun protecting product before you  step out in sun.One should always apply a sunscreen 20 Min’s before stepping out in the sun so the product has a chance to bond with the skin.It is recommended that sunscreens be reapplied after swimming or perspiring.  However, reapplication of a sunscreen does not further the period of protection.One should ideally have an SPF of 30 or higher that provides broad-spectrum coverage against both UVA and UVB light.

Daily use of sunscreen will never help to reduce the tan you already have on your skin but help in preventing/reducing further tan on your skin.Sunscreens should be used daily if you are going to be in the sun for more than 20 minutes. Most people will receive this amount of sun exposure while performing routine activities.So people working in air-conditioned offices also face sun for a minimum of 20 Min’s while travelling to office,on top of that the air conditioner release positive ions in air which  are not good for skin in long run, so a sunscreen will also act as a protective layer when you are in air-conditioned offices Wink .They can be applied under makeup. There are many cosmetic products available today that contain sunscreens for daily use because sun protection is the principal means of preventing premature aging and skin cancer. Sunscreen used on a regular basis actually allows some repair of damaged skin.Even on a cloudy day 80 percent of the sun’s ultraviolet rays pass through the clouds Cloudy , so it’s necessary to apply sunscreen/ sunblock not only in summers  but throughout the year.It is recommended to apply a sunscreen / sunblock even to kids as they are mostly exposed in sun when they are playing,sports.No sunscreens should be used on children during the first six months of life as their skin is too sensitive.

Lips get sunburned too, so apply a lip balm that contains sunscreen with SPF 15 or higher. Also remember the eyelids and under eye,or else if you are not comfortable applying a sunscreen near eyes use sunglasses.People who are indoors do not face the sun directly but they don’t realise that even they tan gradually,more than that the rays radiated by tube light or cooking gas also help in tanning the skin.So it is recommended that even housewives should apply a sunscreen regularly. Rolls Eyes

How to choose the right SPF?

It all depends on the number of hours or minutes you are exposed to sun. SPF 1 will give you 20 Min’s protection,so SPF 15 will give you 5 hrs. protection on an average, depending on the intensity of sun rays (Afternoon 1am -4pm maximum intensity) and the amount you sweat or if you in water(swimming).

Difference between a sunscreen and a sun block .

Sunscreen’s function is to “screen” the sun while sunblock actually “blocks” the sun.Sunscreen protect your skin by absorbing and reflecting UV rays so it filters and reduce ultraviolet radiation penetration to the skin.Sunblocks  physically block ultraviolet radiation.Sunblocks often appear white on the skin and can be cosmetically unacceptable to many people, because they are often messy, visible and do not easily wash off.. Sunscreens tend to be less visible on the skin.  A major drawback of these sunscreen ingredients is that they often break down after several hours of exposure to sunlight, which means you need to reapply them.In short a sun block acts as a mirror which reflects the rays and a sunscreen acts as filter which takes only required amount of sun rays and keeps unwanted ray out of the skin.People who want to tan safely can use a sunscreen because the absorption of sun rays (amount of tanning caused) is high as compared to a sun block.Any Sunscreen/ Sun block will not completely prevent your skin from tanning but will reduce it remarkably and more than that it will act as anti ageing as it will protect you from UV A rays and UV C rays, resulting to skin cancer. Yes

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{ 8 comments… read them below or add one }

1 nandish August 8, 2011 at 6:01 AM

This is a real informative one, I was in an impression that sunscreen are not of any help.


2 tejas August 12, 2011 at 8:03 AM

Thanks a lot Nandish, I hope you’ll start using one now.


3 vyasangi August 11, 2011 at 7:11 AM

which lip balm with SPF do you recommend ?


4 tejas August 12, 2011 at 6:40 AM

Hey Vyasangi,you can use a neutrgena, or a maybelline or else you can also search on google.always see to it that you buy a branded one,which one do use currently?


5 vyasangi August 16, 2011 at 6:22 AM

Thanks a lot for your recommendation. I should say i finally found one which is just perfect. :) Cheers to Neutrgena & you :)


6 tejas August 16, 2011 at 6:34 AM

I am glad to hear that vyasangi :)


7 Manish August 12, 2011 at 8:01 AM

nice Article .. I never give any thought to this ..



8 tejas August 12, 2011 at 8:10 AM

Thanks Manish


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