for freshmen, the first class is probably military training. In the hot sun, what they need most is sunscreen. How many times of sunscreen is the best for military training? How can freshmen prevent being sunburned? Let sihai.com help you recruit military training on how to sunscreen.
1. How to protect the sun in military training
Before military training:
1, before the military training, we must prepare everything well, prepare sunscreen, whitening and repairing facial mask, and so on. If you don't know how to choose sunscreen and repair whitening products, you can see here.
2. Exfoliation: the thick cutin is easy to make the pores unable to breathe, and the strong ultraviolet and long-term high temperature will inevitably lead to more skin oil, plus the application of sunscreen. It is easy to have acne or skin allergy symptoms. Therefore, Lin Xi suggested that you should exfoliate once or twice a day before the military training, and you can exfoliate once after 7 days of military training, so as to keep your pores transparent. Prevent acne and other skin problems caused by poor pores.
3. Comprehensive application of sunscreen: after washing in the morning, it hasn't been a long time. Generally speaking, the time is very tight. Therefore, the whitening mm should work harder and get up early. They should start to rub their lips and necks half an hour before going out for military training. They should focus on strengthening the lower collarbone, ears, back neck and exposed arms, And the amount must be large to prevent being washed away by sweat.
4. Take vitamin C: if you can, take vitamin C with you, form the habit of taking vitamin C, take 2 tablets every day, to help supplement nutrition, and help protect against sun, but don't eat too much, too much is not good.
In military training:
1. Take sunscreen with you: it's enough with a sun protection index of ph30 \ \ PA + +. If you don't know what the sun protection index is, look at this. Sunscreen tips.
SPF is the abbreviation of sun protection factor, indicating the level of sunscreen efficacy that sunscreen products can play. It is based on the minimum dose of erythema on the skin. It's called sun protection index in Chinese.
Skin reddening after sun exposure, medically known as' erythema ', is the skin's slightest response to sun exposure. The lowest dose of erythema is the shortest time of sun exposure for skin erythema. After using sunscreen, the minimum erythema dose of the skin will increase, so the SPF of the sunscreen is:
SPF = minimum erythema dose (after using sunscreen) / minimum erythema dose (before using sunscreen) is actually the effect, that is, the ratio of erythema after using sunscreen and before using sunscreen, which is used to measure the sunscreen function of sunscreen.
The SPF sun protection factor is applicable to everyone. Its calculation method is: assuming that the intensity of ultraviolet rays will not change with time, if a person who does not have any sun protection measures stays in the sun for 20 minutes, his skin will turn red. When he uses SPF15 sun protection products, it means that he can extend the time by 15 times, that is to say, the skin will be red after 300 minutes. SPF is a test index to measure the sunscreen's defense against UVB in the sun. See here you may say, is that the bigger the SPF, the better? Then Lin Xi tells you that it is not.
According to dermatologists, the most appropriate sun protection factor is between SPF15 and SPF30.
Generally speaking, SPF15 can block 93.3% of UVB, while SPF30 can block 96.6% of UVB. In addition, due to the high sun protection factor, the product will be relatively greasy and thick, which will easily block the pores, and even cause acne and acne. And some high coefficient sunscreens belong to chemical sunscreen. After long wave ultraviolet radiation and absorbing heat energy, they will mostly be converted into other substances, leading to skin allergy. Therefore, we should especially remind you that when selecting sunscreen products, in addition to considering the sunscreen factor, you may want to look at its auxiliary ingredients, or try it first, and then do the most Later decision.
There is also an index PA. PA is the "UVA prevention effect test method standard" published by Japan Cosmetic Industry Federation in 1996. It is the most widely used standard in Japanese products at present. The defense effect is divided into three levels, namely PA +, PA + +, PA + + +, PA + is effective, PA + + is quite effective, PA + + is very effective. The sun protection factor PA is a test index to measure the sunscreen's defense against UVA in the sun. This is not widely used in the world. There are a lot of Japanese products. Please pay attention to it when you choose sunscreen products.
2. If you are prone to sweating, you can use antiperspirant. If you have time to rest, try to go to the shade as much as possible. (this is also to say, ha ha, or to say) let the skin also rest. If you think the sweat is still strong enough to wash away the sun protection, Lin Xi tells you to make up for it as soon as possible, if you are free, if you are not, or if you don't want to take so many things in the middle of the military training, then you should repair it as soon as possible after the military training. After the military training
3、 Drink more water: drink more water, at least more than your sweat. It is better to add glucose water or salt water to help you replenish a large amount of lost water, sugar, etc., and relieve skin discomfort. It can also prevent heatstroke.
After military training
1. Post Sun Cleaning: after military training, your body will be very tired and hot. You must want to take a cold bath. Lin Xi told you that you should never wash your face with cold water after military training. That will make your skin blacken. We must wait for your skin to soothe. When you think your skin is not so hot, wash your face with facial cleanser and wash the sunscreen thoroughly. I don't know how Do you want to clean the sunscreen? Take a look at this. How can you clean the sunscreen.
2. After sun repair to be convenient and fast: Although a day of military training down, the body is very tired, but must do a good job after sun repair. After cleaning, you can wipe moisturizing lotion. First, moisturize and moisturize the skin. After prolonged exposure to the sun, the skin is seriously short of water. After moisturizing, you can wipe your professional after sun repair or whitening products. You can also apply some whitening facial mask.
3. Apply Whitening Night Cream before going to bed: the Whitening Night Cream is not greasy or greasy on the face. It is very comfortable. When you wake up the next day, touch your face. The skin is soft and smooth, whitening and brightening. You can try it. If you don't want to become an 'African' after military training, you should stick to Whitening Night Cream.
4. During the ten days of military training, if you can, you should eat more sunscreen fruits and vegetables. They will magically convert into sunscreen, or effectively protect your skin from UV rays, such as tomatoes, watermelons, lemons, nuts, food and fish
If you adhere to the above points, it will certainly ensure that your whitening career will not be affected. When your classmates are black and your maintenance is good, how happy it is!