Sunscreen can prevent both skin cancer and premature ageing. However, it is ineffective unless you know how to use sunscreen properly. When applying sunscreen, follow the instructions of a certified dermatologist.


Most people know that sunscreen shields you from the sun’s damaging rays. People frequently apply sunscreen during the summer months or when they will be outside for an extended period. What about the remaining months of the year? Or if you spend most of your time indoors? Is it necessary to use sunscreen every day?


 We’ll go over how the sun affects your skin. The benefits of sunscreen for all skin types and why using a sunscreen every day is a smart idea. We’ll also go through how to use sunscreen properly.

Before we learn how to use sunscreen properly, let’s look at what sunscreen is and how it works.


What is sunscreen and use sunscreen properly


Sunscreen is a chemical that helps protect the skin from the sun’s harmful rays (UV). That is protects from both the A and B rays of the sun. Sunscreen lotions, creams and gels can help protect the skin from premature ageing and skin cancer damage.


Benefits of use sunscreen properly


 Spending time outside is good for your health and can help absorb vitamin D. However, spending too much time in the sun without protection is harmful to your health. Sunscreen reduces your exposure to ultraviolet (UV) light. It lowers your risk of skin cancer.

   Sunscreen also helps prevent skin ageing. It protects your skin from UV rays, which can cause wrinkles, age spots and blemishes.


Is ultraviolet light harmful to your health?


 The sun emits a wide range of light rays with various wavelengths. We can see some of them (known as visible light). But we can’t see others, such as UV radiation.

 Distinct wavelengths have different effects on your skin. UV radiation comes in three forms, two of which are harmful to human skin:

  • The sun’s ultraviolet A (UVA) rays link to skin ageing.
  • Skin burning link to ultraviolet B (UVB).

Even though UVA and UVB radiation have differing effects on the skin, both are harmful. Both can harm your skin’s DNA, leading to skin cancer.

 Here are some more crucial considerations when it comes to UV radiation:

  • UV rays are reflection from different surfaces (such as water, ice and sand), increasing your exposure. When it snows, your UV exposure almost doubles.
  • Clouds do not block UV rays. UV rays can still pass through up to 80% of the time.
  • UVA rays are not blocked by glass. However, it effectively blocks UVB rays.


What is SPF?


 If you wear that sunscreen, the SPF number will inform you how long it will take for UVB radiation to redden your skin. It would take 30 times longer to burn if you used an SPF 30 as prescribed than if you didn’t apply any sunscreen. Higher SPFs block more rays, but just slightly: SPF 50 blocks around 98 per cent of rays, while SPF 100 blocks about 99 per cent. There is no such thing as a sunscreen that completely blocks UV rays.

It’s worth noting that SPF only applies to UVB radiation. Which protects from both UVA and UVB rays, so look for such sunscreen spectrum.


The best way to wear sunscreen:


Sunscreen is effective, but only when properly applied. Here are some pointers to keep in mind.

  • Use a sunscreen that provides UVA and UVB protection (broad spectrum).
  • 30 minutes before going outside, apply it. That offers your skin enough time to absorb the sunscreen and receive adequate protection.
  • Make sure you use enough — about a quarter-size dollop for your face and enough to fill a shot glass for your entire body for adults.
  • Every 2 hours, reapply sunscreen.
  • Even if you’re wearing water-resistant sunscreen, reapply after swimming or sweating.


When it comes to SPF, how much is enough?


Several medical organizations recommend the minimal SPF that you should apply. Here are some particular recommendations.

The most important things to remember are that you should wear SPF 15 at the very least. And that the higher the SPF, the better the protection.


What if your colour is black?


   Although dark skin provides some natural protection from the sun. But still, UV rays can cause damage. Even if you don’t burn easily or at all in the sun, UV damage can cause skin roughness or discolouration, which can be difficult to treat.

Although skin cancer is less likely in those with darker skin tones, it can occur. It’s frequently detected later when it’s more difficult to treat.

 People of various skin tones can benefit from wearing sunscreen.


Is it necessary to use sunscreen every day?


 Sun damage accumulates over time, even if you don’t know it. Suppose you don’t spend much time doing any physical work outside. Yet you are always exposed to UV radiation. Because those rays can also come through the windows. This exposure increases over time, increasing your risk of skin cancer and damage.

To protect yourself from UV damage, apply sunscreen to exposed skin such as your face, ears, and backs of your hands every day.

Is it possible that using sunscreen is harmful to your health?

 Some people are concerned about sunscreen chemicals’ safety.

  •  In recent studies, six common sunscreen chemicals (which may be found here) were discovered to be absorbed into the bloodstream and stayed in the body for a long time. We don’t know what impact this has on your health if any.
  • The FDA has proposed a rule that would require sunscreen producers to publish more safety data on several chemicals. However, the FDA does not consider these substances dangerous and still recommends that you wear sunscreen regularly.
 Other issues about sunscreen have been raised.

The chemicals oxybenzone and octinoxate (and perhaps other compounds) have been linked to coral reefs and other aquatic life destruction. As a result, they are no longer permitted in Hawaii.

 In the body, oxybenzone may operate as a minor hormone. However, this hasn’t been demonstrated. Several organizations, such as the American Academy of Pediatrics, urge youngsters to use alternate sunscreens if possible.

 In some batches of sunscreen, high quantities of benzene, a cancer-causing ingredient, were discovered (you can see which products here). There is no proof. However, sunscreen promotes cancer. However, there is substantial evidence that UV photons from the sun do.


Sunscreen substitutes include:


Sunscreen is a simple and efficient approach to protect yourself from dangerous UV radiation. There are, however, additional ways to protect oneself that do not require the use of sunscreen:

Keep your distance from the sun.

Wear hats with wide edges and protective clothing to protect from the sun.

When it is sunny outside, use an umbrella to avoid it.

Wear UVA and UVB-blocking sunglasses to protect your eyes and the skin surrounding them.

Keep note of the UV index, which indicates how much UV radiation is present in your location on any given day.

On car windows, use a UV-protective window film.


Ultraviolet rays, which you see every day, increase your chances of skin cancer and ageing. This solar damage accumulates over time. You also know how to use sunscreen properly. And daily use of sunscreen can protect you from skin cancer and changes. Wearing hats and staying in the shade are two other strategies to protect yourself from the sun.


how-to-use-sunscreen-properly
how-to-use-sunscreen-properly