There are two types of ultraviolet rays that are harmful to the skin: UVA and UVB
UVB has shorter wavelengths that will darken the skin and cause sunburn – these signs can be seen immediately after just one session of exposure to the sun.
UVA has a longer wavelength that causes silent damage that is not immediately visible but is long-lasting and difficult to treat: melasma, freckles, wrinkles… UVA rays are strong all day, whether it is before 10am or not.
You need to get into the habit of using sunscreen as soon as possible to protect your skin from harmful effects of the sun
SPF is for UVB protection, PA is for UVA protection
A high SPF index implies a longer duration of sun protection.
PA+: The product’s UVA protection intensity is 2 times higher.
PA++: The product’s UVA protection intensity is 4 times higher.
PA+++: The product’s UVA protection intensity is 8 times higher.
Suncream has two types: sunscreen and sun block.
Sunscreen:
Sunscreen is a cream that filters ultraviolet rays from the sun, filtering them out of your skin but still allowing some to pass through.
A major drawback of this cream is that it usually loses its effectiveness after a few hours, so you must reapply the cream after a period of sun exposure.
Sunblock
This cream is thicker and thicker than sunscreen.
Sunblock sticks thickly to the skin and will make the face pale when used
Understanding the above parameters, you will easily choose products that suit your needs for facial skin care.
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