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How to Use and Apply Your Sun Protection – Sunscreen Gel

We recognize that it is essential to protect our Skin from the harmful rays - UVB and UVA, in particular, to reduce the risk of premature skin aging and skin cancer.

To save your skin from harmful sunrays it good to apply and use Sunscreen Gel in the best way! Here are some key elements for the optimal use of this type of product.

In This Article

  • How much Sunscreen Gel should I apply?
  • When should you add it?
  • How long does Sunscreen Gel last?
  • Choose the right sun protection factor

How much Sunscreen Gel should I apply?

According to dermatologist that to get all the Protection that matches a screening index, 2 mg of the Sunscreen Gel would need to be applied per square centimeter of skin, which is equivalent to one quarter of a 125 ml tube (for the whole body). Usually, people apply half of the required amount…

It can be difficult to estimate, in practice, the amount of Sunscreen Gel needed to cover the areas to be protected, especially since there are several different formulations on the market. If you have any questions regarding the sunscreen gel read here What Is The Need For The Best Sunscreen For Face?

When should you add it?

Ideally, half an hour after the first application (in order to protect well the parts that would have been poorly covered on the first application), then every two hours and after swimming, sweating heavily or rubbing against a towel or sand.

20 to 30 minutes (the screen is more effective when it has previously penetrated the skin).

How long does Sunscreen Gel last?

For a product that has not yet been opened, the latter remains effective as long as the expiry date indicated on the packaging has not been passed. If the product has not been stored according to the manufacturer’s recommendations (for example, if it has frozen), one cannot be sure of its effectiveness.

Once the container is opened, the shelf life of sunscreens is on average six to eight months (beyond this period, their protective properties are impaired).

If the appearance, colour or smell of a product seems abnormal to you, do not use it.

By car, by bike

The forearms, hands and one side of the face are often intensively exposed to sunlight. Let’s don’t forget to apply sunscreen. (Yes, UVB rays, responsible for sunburn, go through the windows!)

At the beach

Strolling on the beach and sunbathing on a towel can cause sunburns in places you forgot to protect!

Choose the right sun protection factor

The SPF (Sun Protection Factor) or SPF is mentioned on the packaging and indicates the level of protection against UVB of the product. 

Indeed, UVB rays are the most dangerous because they are the ones that burn the epidermis and cause Sun to burn on skin insufficiently protected by melanin pigments and they are the cause of 90% of skin cancers.

Also, watch out for UVA rays since they are not harmless. On the contrary, they penetrate deeper into the dermis and cause destruction of the collagen and elastic fibers which ensure the tone of the skin.

Sun cream must guarantee UVA protection at least equal to one third of UVB protection. For example, for a protection factor of SPF 30 for UVB, the protection against UVA will be at least SPF 10.

The choice of the protection index or SPF depends both on the type of skin and the sunshine conditions. The clearer the skin (phototype 1) the higher the protection index must be.

There are 4 categories of sun products according to SPF:

  • - Low protection: SPF 10 or 20
  • - Medium protection: 20 or 30
  • - High protection: SPF of 30 or 50
  • - Very high protection: SPF 50+

However, in high protection, the difference between two indices becomes minimal since an SPF 30 product filters 96.7% of UVB rays against 98% for a Sunscreen gel SPF 50 product. In practice, it is compliance with the instructions for use that counts. 

It has in fact been proven that a 50% reduction in the dose to be applied leads to a reduction in the effectiveness of 75%. In other words, a product of index 20 or 30 applied liberally everywhere is often more effective than a product of index 50 applied only once in the day.

So only go for Sunscreen Gel SPF 50, as dermatologist says.



This post first appeared on Top Vitamin C Serum For Face In India 2019, please read the originial post: here

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How to Use and Apply Your Sun Protection – Sunscreen Gel

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