According to the FDA, Broad Spectrum Sunscreen “may protect you from the sun’s damaging ultraviolet A (UVA) and ultraviolet B (UVB) radiation.”. In principle, this means that the sunscreen protects both the skin’s surface and deeper skin tissues against UV radiation from the sun.
The sun generates energy in a variety of wavelengths, which penetrate our planet’s atmosphere. UVB rays, which primarily impact the skin’s surface (think B for Burn). UVA rays, which penetrate to deeper skin layers where their effects cannot be seen directly. These are two forms of ultraviolet radiation (think A for Aging, including DNA damage and development of skin cancer).
While many of the properties of your selected sunscreen are up to personal choice, there are two things you should not compromise on. An SPF of at least 15, and broad-spectrum sunscreen. If you expect to spend a lot of time outside, choose a water-resistant sunscreen with an SPF of 30 or higher. While most individuals recognize the significance of SPF value, they may be unaware of the relevance of broad-spectrum coverage.
UVA and UVB: A Dangerous Blend
Most people looking for sunscreen are aware that the sun’s ultraviolet (UV) rays are dangerous. However, not all UV rays are created equal. lets understand how each type affects the skin helps show why it is critical to keep all of them away. The sun emits three types of UV radiation: UVA, UVB, and UVC rays. UVC rays have the shortest wavelength of the three and are absorbed by the ozone layer before they reach Earth. UVB and UVA rays, on the other hand, can penetrate the Earth’s atmosphere and reach our skin.
When you think of dangerous sun rays, UVB rays are usually what come to mind. These rays are the primary cause of skin flushing and sunburn. Their strength varies according to the weather, time of day, and location. UVB rays cannot penetrate glass and mostly harm the skin’s outermost layers.
While UVB radiation can cause severe sunburns, UVA rays are a little more subtle. UVA radiation is the most common kind of UV radiation on Earth. It accounting for up to 95% of the radiation that reaches the planet’s surface. They are present with identical intensity throughout the day and can penetrate clouds, fog, and glass. UVA rays are less important in sunburn than UVB rays, but it doesn’t imply they aren’t deadly. UVA photons are the most common tanning rays, and any trace of a tan indicates DNA damage. Because it penetrates deeper into the skin than UVB radiation. This form of radiation is also largely responsible for premature skin aging, such as wrinkles.
Both UVA and UVB radiation may damage the skin’s DNA, causing genetic changes that can lead to skin cancer. UVA and UVB radiation work together to cause sunburns, premature aging, and skin cancer, and guarding against both is critical to maintaining healthy skin.
FDA intervention
The FDA introduced new sunscreen labelling requirements in 2011. It requires any sunscreen on the market to fulfil FDA criteria for both UVB and UVA protection before the branding broad spectrum.
Here’s why it’s important: The SPF of a sunscreen, which many people rely on to determine how effective a product is. First and foremost a measure of how long it takes UVB rays to redden the skin when wearing a sunscreen compared when not using a sunscreen. For example, if you apply SPF 15, it will theoretically take 15 times longer for your skin to begin burning. This is already an unsatisfactory model because no sunscreen is expected to last more than two hours. Furthermore, if the product is not branded broad spectrum sunscreen, SPF tells consumers nothing about the UVA protection the product provides. Because of FDA restrictions, branded broad spectrum sunscreen indicates the UVA protection is proportionate to the UVB protection. The greater the SPF, the more UVA protection there will be.
Today, if you see “broad spectrum sunscreen” and an SPF of 15 or greater on the label, you may be sure of a sunscreen’s capacity to protect you from UVA and UVB radiation. It is up to you, though, to make that designation a priority! Make it a point to protect your skin from both types of dangerous UV radiation, not just one.
The Solution: Zinc Oxide Sunscreen
Non-nano zinc oxide is the greatest active sunscreen component on the market today, providing exceptional protection against both UVA and UVB radiation.
Zinc oxide is, without a doubt, the best active sunscreen component. It offers the most continuous effective absorption properties that never diminish, covering the complete UVA/UVB spectrum by itself. Petrochemical sunscreens, on the other hand, require many active components for sufficient coverage and deteriorate fast on the shelf. Even mineral sunscreens containing titanium dioxide require extensive assistance (often in the form of zinc oxide) to cover a major amount of the UVA spectrum range.
Happy skin happy you
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