As the saying goes, raising children does not prevent aging, sunscreen to prevent aging.
The British BBC documentary "The Truth About Beauty" revealed that 75% of wrinkles in the skin are caused by sunlight. The rest are caused by external factors, such as pollution and smoking, and the causes of aging are only a small part.
Natural aging and photoaging are two important causes of skin aging, compared to natural aging, photoaging has a greater impact on skin aging, modern clinical medical research shows that photoaging is the main culprit of skin aging.
But many people have wondered: Why am I obviously obediently applying sunscreen, but still tanning/sunburning old?
That's because there are a lot of misunderstandings about daily sunscreen, today I will give you a good plate of these truths about "the more the sunscreen is painted, the darker", the little fairies quickly see if they have been recruited!
Myth 1: A bottle of sunscreen for a year?
A study published in the American journal Chemical Toxicology Research showed that chemicals added to some sunscreen brands may cause cancer after long-term placement.
Therefore, a bottle of sunscreen is best used up within 8 months, although it may not be carcinogenic, but the sunscreen effect is greatly reduced, and the phenomenon of "the more the sunscreen is applied, the darker it is" is certain.
Myth 2: Replace sunscreen with cosmetics with sunscreen index
Not even more ok!
Most of the products on the market, such as pre-embosses, isolating creams, BB creams, cc creams, etc., have sun protection indexes. However, most cosmetics have only an SPF of 15.
And the sun protection value can not be stacked, you apply two layers of SPF15 is not equal to SPF30, or honest and practical professional sunscreen products are the right way.
Myth 3: Only look at the high-medium (SPF/PA) sun protection index and ignore the full spectrum of sun protection
SPF and PA as sunscreen indicators can reflect the business capabilities of sunscreens from one side.
In simple terms, SPF represents sunscreen against UVB, while PA represents sunscreen against UVA. However, sunscreen must not only protect against UVA/UVB, but also against other visible light, blue light, red light, etc., which can cause skin aging.
Therefore, a full spectrum of sunscreen is necessary.
Myth 4: Body and facial sunscreen are mixed
To say that the body sunscreen with the face, it is not appropriate. Because the stratum corneum of the skin on the face is thinner and more fragile. The sunscreen used on the face needs to be gentler and lighter than the body's sunscreen;
If you want to use facial sunscreen on your body, if you have enough budget, you can.
Myth 5: Use too little
When many little fairies use sunscreen, their hands are "shaking" like canteen aunts, and they only use a little bit each time, of course, they can't play a role in sun protection.
If the sunscreen product is a relatively thin lotion texture, it needs to use at least one dollar coin size; if it is a thicker cream texture, it is also necessary to use a five-cent coin size to achieve the desired sun protection effect.
Most of the amount of sun protection should be up to the size of a dollar coin, and it should be more than not less
Myth 6: Cloudy days without ultraviolet rays, do not do sun protection
Thick clouds on cloudy days have little to no insulating effect on ultraviolet rays, and 90% of ultraviolet rays can penetrate clouds.
In the same way, rain and snow do not delay the ultraviolet rays to hurt the skin, so you can't be lazy in the sun protection all year round.
Myth 7: Apply sunscreen and go out
The active ingredient in the sunscreen must penetrate into the surface of the cuticle to exert a long-term protective effect, so it is necessary to apply sunscreen 30 minutes before going out in advance to achieve sun protection effect.
These sun protection misunderstandings mentioned today are actually points that we are easy to ignore in our daily lives, but it is these details that will ruin our efforts for sun protection.