Spring has arrived, which also means the beginning of the sun protection war! The lethality of ultraviolet rays is amazing. It will not only darken the skin, but also cause sunburn, sunburn and even aging, causing countless skin problems. Therefore, effective sunscreen products are absolutely necessary, but there are so many sunscreen products, we should How to judge the protective ability of sunscreen products? Let this article teach you about the SPF index and the impact of ultraviolet rays UVB and UVA on the skin.
What are UVA and UVB? What's the difference?
There are many types of rays emitted by the sun, which can be divided into infrared rays, visible light, and ultraviolet rays according to wavelength. Ultraviolet rays (Ultraviolet, referred to as UV) are the most likely to cause damage to human skin. Ultraviolet rays can be divided into two types: UVB (Ultraviolet B) and UVA (Ultraviolet A), both of which can penetrate the ozone layer and reach the ground. In sunlight, the amount of UVA is nearly 500 times greater than UVB.
It will make the skin red and sunburned, and the "B" of UVB itself also represents Burn (meaning burn, sunburn). At the same time, UVB is also the main cause of skin cancer.
It has high penetrating power and can penetrate the skin and enter the dermis layer of the skin. Therefore, it also has the risk of causing cancer and can easily cause premature aging and wrinkles on the skin.
How to read SPF sun protection factor?
- SPF: sun protection factor
SPF (Sun Protection Factor) is the sun protection factor of the American system, a protection standard for UVB ultraviolet rays.
UVB mainly causes sunburn and sunburn on the skin. SPF15, 30 and 50 can block approximately 94%, 97% and 98% of UV rays respectively. The higher the test value, the longer the delay in sunburn. We should also pay special attention here. No matter how high the degree of sun protection is, it can only "delay" sunburn and redness.
PA (Protection Grade of UVA) is Japan’s protection grade index for UVA.
UVA is the main cause of skin tanning and aging, and PA is the standard for UVA protection and has the effect of preventing sunburn. Can be divided into PA+ PA++ PA+++, and PA++++. The more + numbers in PA, the stronger the protective effect, and the stronger the ability to delay skin tanning and aging.
In addition to effectively protecting against UVA and UVB, good sunscreen products also require "uniformity"
- UVA: European sun protection index
UVA is an indicator of the European Commission, which means that the UVA protection of this sunscreen reaches more than one-third of UVB. This indicator is actually very important, because the "uniformity" of sun protection is very important for sun protection. A good sunscreen product should be able to resist both UVA and UVB, and the UVA defense power should not be too different from the proportion of UVB.
- Broad Spectrum: sun protection breadth protection label
Broad Spectrum is another indicator of sun protection ability in the United States, and is also used in Australia and Germany. It is a broad-effect sunscreen, which means that the product can simultaneously resist more than 90% of UVA and more than 99% of UVB harm to the skin, so it can obtain this label.
There is more than one SPF standard. You need to choose two or more SPF standards to effectively protect yourself from the sun~
Friendly ocean physical sunscreen, we recommend France’s Aocrelle Sunlight Mood Full Care Plant Extract Sunscreen Series
From the French Acorelle sunscreen sunscreen series, there are "Total Protective Plant Extract Sunscreen Lotion SPF 50 (Colorless)", "Total Protective Plant Extract Face Sunscreen SPF 50 (Colorless)", "Total Protective Plant Extract Face Sunscreen SPF 50 (Colorless)" Milk SPF 50 (retouch)" and "Full Protective Plant Extract Baby Sunscreen Lotion SPF 50+ (colorless)", no alcohol, no zinc, no chemical sunscreen and no animal testing, using environmentally friendly organic pure physical ingredients (titanium dioxide) And natural plant extract ingredients, it is ocean-friendly, hypoallergenic and highly resistant to UVA/UVB ultraviolet rays. The ingredients have passed the European ECOCERT and COSMOSBIO organic certification.
The UVA (circled) and UVB labels on the full-protective plant-extract sunscreen bottle are European sun protection indicators, which are equivalent to PA+++, the highest UVA protection level of Japanese sunscreen. It can long-term block ultraviolet UVA and UVB ultraviolet wavelengths up to 375nm.
PA+++ = UVA (circled), UVB = ★★★
Extended article >> I still get sunburned after rubbing it! It turns out you didn’t apply enough sunscreen. I’ll teach you how to use the correct amount of sunscreen.
Sun protection is an important step that cannot be ignored, not only to prevent tanning and sunburn, but also to maintain the health of the skin and prevent skin aging. Start doing sun protection now and leave it to the Sunlight Mood Sunscreen Lotion Series ~
Disclaimer: The condition of skin care products after use will vary depending on individual usage methods and skin conditions. Please follow the correct usage method.
