No matter what weather is, you must take care of your skin by sunscreen before you go out. Apply sunscreen with SPF to protect your skin from strong UV rays, minimizing painful sunburn, skin cancer and signs of aging such as dark spots and wrinkles.
However, the best sunscreen is extremely overwhelming. Do you want to use chemical or physical sunscreen? Whether you are looking for the best natural sunscreen, the best sunscreen for babies and children, tinted sunscreen or just the perfect SPF for your face, you can choose.
Advantage of Face Sunscreen
As we know that sunlight consists of two harmful rays with UVA and UVB rays. UVA rays can cause wrinkles and are also associated with certain skin cancers. This is UVB rays that can cause sunburn. Sunburn is not only painful, but also directly related to the deadliest cancer. Fortunately, sunscreen protects the skin from UV rays by absorbing, reflecting or scattering sunlight.
Staying in the sun for too much time can cause sunburn, severe skin redness and skin inflammation. If this happens, you can choose one of BAWEI face pack types to soothe your skin.
Sunscreen is one of the most effective way to prevent wrinkles and fine lines. Much UVA rays can make your skin age and cause loss of collagen and skin elasticity. Using SPF in your daily life, you can avoid the early signs of aging with minimal effort.
The Higher, the Better? What SPF Level is Best for Face?
Sun protection factor SPF
Although these two indicators are used to evaluate sunscreen, the specific meaning is different. Normally, SPF refers to the sunscreen effect of sunscreen on UVB. In short, you can know the protection time of this sunscreen on the skin according to the SPF value.
For example, if your skin is exposed to the sun for 15 minutes, it appears erythema. After using the sunscreen with spa of 20, the time for skin erythema can be extended to 300 minutes (15*20 ). That is, face that would have been red in 15 minutes can be protected by this sunscreen for 5 hours.
If you use a sunscreen with spa of 30, the time for erythema on your skin becomes 450 minutes (15*30 ), and sunscreen protection time is extended to 7.5 hours.
Tanning index PFA (PA)
PA is the protective effect of sunscreen on UVA, that is, the ratio of the time required for skin blackening with sunscreen to the time required for skin blackening without sunscreen. On the cosmetics label, the more the + after PA, the greater the PFA value and the better the sunscreen effect. Specifically, PA + can delay the tanning time by 2-4 times, PA++ can delay the tanning time by 4-8 times, and PA+++ can delay the tanning time by more than 8 times.
In terms of effect, the sunscreen with higher spa and PA does have better sunscreen effect. However, the sunscreen with better sunscreen effect has stronger irritation to the skin.
In general, sunscreen is divided into chemical sunscreen and physical sunscreen. The chemical sunscreen with higher SPF and PA index is oilier and the texture is more viscous and compact, while the physical sunscreen with higher SPF and PA index is easy to leave white solid residue on the skin surface. That is not beautiful and is not good for skin ventilation.
According to different skin types and the length of exposure to sunlight, the criteria for selecting sunscreen products are also different, which are divided into:
1) For general skin types, office workers, white-collar workers, it is recommended to choose sunscreen with spa of 12-15 and PA+；
2) For light sensitive skin, it is recommended to choose sunscreen with spa of 15-20 and PA++;
3) When playing in the wild and on the beach, it is recommended to choose sunscreen with spa of 30 ~ 50 and PA+++.
Oily skin: for long-time outdoor activities, choose SPF 50 \ PA+++ or above sunscreen, and daily office workers can choose SPF 30 \ PA++. Most Japanese sunscreen is designed for oily skin, so oily skin can choose Japanese sunscreen.
Recommended sunscreen type: physical sunscreen + chemical sunscreen
Dry skin: for long-time outdoor activities, choose SPF 50 \ PA+++ or above sunscreen, and daily office workers can choose SPF 30 \ PA++. For dry skin, you can enjoy the European style sunscreen, but you should bear sticky texture sunscreen.
Oily sensitive skin: for sensitive skin, it is recommended to use pure physical sunscreen or children's sunscreen products. The SPF value should not be too high as far as possible. Meanwhile you should wear on: masks, sunshades, sunscreen clothes, etc.
Recommended sunscreen type: pure physical sunscreen (easy to clean: easy to clean+, mild: low irritation+++)
Dry sensitive skin: for dry sensitive skin, it is recommended to choose pure mild chemical sunscreen. The SPF value should not be too high as far as possible. Meanwhile you should wear on: masks, sunshades, sunscreen clothes, etc.
Recommended sunscreen type: chemical sunscreen (easy to clean: easy to clean+++, mild: low irritation+++).
Is Sunscreen Necessary for Face?
Ultraviolet light in the sun is the main factor that damages the skin. Long time exposure to strong ultraviolet rays will damage our epidermal cells and promote the formation of pigment. Over time, we find that we have been tanned or even sunburn. Ultraviolet rays can also damage the skin's moisturizing ability, making our skin dry, peeling, and more prone to fine wrinkles. In order to protect our skin, we must use sunscreen.
How can we protect our skin from sunshine?
Sunscreen is the most frequently used product, and there are few precautions you should know about sunscreen：
Choose sunscreen according to your skin condition. It's best to apply it on the back of your hand or the inside of your arm before use. Observe for 24 hours to see that there is no allergy.
Choose sunscreen with appropriate factor: the higher the SPF value, the longer the sunscreen time. SPF value, sun protection factor. Generally, yellow skin people can withstand the sun shine for an average of 15 minutes without being burned, so it takes about 225 minutes (15 minutes) to use SPF 15 anti-ultraviolet light products. But correspondingly, the greater the SPF, the heavier the burden on the skin, so when we choose, the greater the multiple, the better.
The use time should be appropriate: do not apply sunscreen before going out. Sunscreen is different from ordinary skin care products. It takes a certain time to be absorbed by the skin, so you should apply sunscreen 10 ~ 20 minutes before going out, and 30 minutes before going to the beach.
The SPF value cannot be accumulated. Even you apply two layers of SPF 10 sunscreen, only one layer of SPF 10 has the protective effect.
It is better not to mix different brands of sunscreen at the same time: mixed use sunscreen increases the possibility of skin allergy. The ingredients of various brands of sunscreen are inconsistent. If mixed and overlapped on the skin, it may cause mutual interference or mutual exclusion of ingredients, reduce the sunscreen effect and even cause skin allergy.