When the summer heats up, we rush to the wardrobe to get the sunscreen we bought last year. The only problem here is that sunscreen, like the products in your wardrobe, has an expiration date. So the old bottle may not be effective, it is a mistake to believe that the expiration date printed on the products is just a suggestion from the producer.
In this article, we will get to know the sunscreen, and the most important information you should know about it, as it is important and essential at all times.
In this Article
Sunscreen and Expiry Date
Expired sunscreen will not work as it should, and will increase your chances of sunburn. Sunburn not only hurts, but can also increase your risk of skin cancer.
It is worth noting that if you bring a sunscreen battle with you to the beach, and place it under the sun’s heat and ultraviolet rays, this may spoil it before its expiration date.
Facts about Sunscreen
Continue reading, perhaps you will find other sun protection information that you do not know about. This information can protect your skin from the dangers of solar radiation. Test your knowledge of sun protection with these quick questions:
Sun Protection Factor (SPF)
- True or False: SPF is the amount of time you can spend in the sun before you get a sunburn compared to if you were not using sunscreen.
- Answer: Right
The sun protection factor or SPF is is a system used to measure the effectiveness of sunscreen cream in protecting your skin from ultraviolet radiation. For example SPF30+ its ability to block ultraviolet rays is high, because sunscreen with SPF30+ allows access to 3.3 % of UV rays entering your skin.
- True or False: A small amount of sunscreen is sufficient to cover the entire body.
- Answer: Wrong
To benefit from the maximum effectiveness of the sunscreen, you must apply an adequate amount of it. Use a small cup-sized amount, and reapply every two hours.
- True or False: The UV Index is a measure that helps you understand how much UV radiation your body is exposed to on a given day.
- Answer: Right
The UV Index is really a measure that helps you understand how much of it your body is exposed to on a given day, in a specific location. The scale ranges from 1 (low) to 11 (adult). In general, an index with a low value denotes a low risk from sunlight, or ultraviolet light. The higher numbers mean the presence of radiation and greater risk.
Its principle is similar to that of a weather forecast, taking into account altitude, ozone protection, cloud coverage, and other factors in order to warn of days or areas considered particularly hazardous.
Remember: UV rays pass through clouds and windows to reach and harm your skin (causing inflammation, aging, and skin cancer), even on days that aren’t sunny, or when the radiometer’s index is low. You can easily get these numbers in detail through weather websites such as Accuweather.com or Weather.com.
Cosmetics and Sunscreen
- True or False: If your cosmetics or moisturizers are with SPF, then you don’t need to put extra sunscreen on your face.
- Answer: Wrong
Cosmetics or moisturizers that contain SPF give you an extra benefit, but they are definitely not enough to protect you all day long. Although these products contain a sun protection factor, you will have to use a very large amount of it, to be applied again and again, so it is illogical to use these products as a sunscreen.
Doctors suggest applying moisturizer or cosmetics with an SPF, and then apply it with sunscreen 30 minutes before you go out in the sun. Doctors also warn you not to wear cosmetics containing SPF 15 and sunscreen with SPF 15, because of course they are not equivalent to a protection factor of 30, there is no cumulative effect here.
Sunscreen and Applying Times
- True or False: Sunscreen containing a high protection factor does not need to be reapplied several times.
- Answer: Wrong
While sunscreen with an 50SPF or greater may offer you a little more protection than others, it is not different from other sunscreens when it comes to the number of times it must be reapplied.
Coconut Oil and Sunburns
- True or False: Coconut oil is useful for sunburn.
- Answer: true or false.
This question is deceptive. On the one hand, coconut oil will help you relieve sunburn after injury and damage. As all moisturizers including coconut oil, oral anti-inflammatory medications such as ibuprofen, and topical antioxidants such as vitamin C are all treatments that you can use if you got a sunburn in order to reduce the effect of inflammation.
Eyes and Sunburns
- True or False: Eyes can get sunburned.
- Answer: True (despite how terrible it is)
The ultraviolet rays from the sun can damage the skin of the eyelid to extend to the cornea, lenses and other areas of the eye. So you must protect your eyes with good quality sunglasses. Look for sunglasses that block 99 to 100 percent of UVA and UVB radiation, and 75 to 90 percent of visible light.
We also specialize fashion lovers with this good news: The colors and shades of the lenses do not affect their effectiveness in blocking ultraviolet rays. Just make sure you wear the right size sunglasses for you, so that it is fixed and attached to the face and does not move from its position during movement. Knowing that glasses with wide lenses and the shape around the eyes is enough to protect your eyes from all angles.
Sun and Skin Cancer
- True or False: True or False: Sun exposure is the only cause of skin cancer.
- Answer: Wrong
Although UVA and UVB radiation are two major reasons for skin cancer, they are not the only causes. Some cases of skin cancer are genetic, and some occur for an undetermined reason.
Frequently Asked Questions about Sunscreen
What are the Best Types of Sunscreen?
The American Academy of Dermatology (AAD) recommends wearing a broad-spectrum sunscreen with an SPF of 30 or higher every day. It protects from about 97% of the sun’s UV rays.
What is the Difference between Sunscreen 30 and 50?
The sun protection factor (SPF) of a sunscreen is a measure of how well it protects the skin from sunburn. SPF30 sunscreen recognized 1/30 of UVA rays, SPF50 is recognized at 1/50 etc. Thus, SPF 50 protects our skin from the sun’s rays better than SPF 30.
How Many Hours Does the Sunscreen stay?
In general, sunscreen should be reapplied every two hours. Especially after swimming or sweating.
What is the Appropriate Amount of Sunscreen?
It is recommended to use 2 milligrams of sunscreen per square centimeter of skin. Equivalent to 1 small cup or 2 teaspoons for the body. But for the face, it;s recommended to use 0.4 ounces of sunscreen, equivalent to 1/4 to 1/3 tsp.