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The SPF of the two sunscreens will not be cumulative, and only the value with the higher SPF will be taken.
Barrier cream is a makeup primer, and if the sun protection factor of the barrier is too high, it will be oily and not breathable.
SPF1 = 15 minutes.
SPF 15 x 15 minutes = 225 minutes = hours
However, due to long exposure to the sun, sweating and other reasons, the sunscreen time is not long-lasting, and it takes two to three hours to make up for it, and the sunscreen will only play a role after half an hour, so apply sunscreen half an hour in advance.
It is recommended to apply a low SPF, with a normal summer SPF of 15-25 and a winter SPF of 8-15.
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In between, generally speaking, the sun protection factor does not stack, but it can also isolate some sunscreens that cannot be isolated.
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The effect will not be better, the SPF will not add up.
If you're just commuting, there's nothing wrong with applying it this way.
If you go shopping, it's best to wear a sunscreen with a high SPF.
After all, sunscreen is specifically for sun protection, and the barrier cream only plays an auxiliary role in sun protection, and if you go to the street, its sun protection index is a little insufficient.
I think that the landlord still uses a barrier cream with a lower sun protection factor, and then uses a sunscreen with a higher sun protection factor.
This is OK, as long as the shopping time is not more than 6 hours.
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Not really sun protection. Many SPFs are false, the purpose is to attract people to buy, in fact, there is no effect at all, we need to be cautious when buying.
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Of course, it has a sunscreen effect, because the most important thing for this isolation is the sunscreen function.
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In fact, they should all have sunscreen effect, but the sunscreen ability is not very good.
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It didn't work. The main function of isolation is to isolate the skin from makeup, and reduce the damage that makeup may bring to the skin. Although many isolators have a sun protection index with a base bucket, its sun protection index is generally low, and it is only suitable for people who often stay indoors to accompany the radiation brought by the isolation computer, if it is outdoors for a long time, such a sun protection index is not enough to resist ultraviolet rays in the air.
Isolation is used before makeup, to protect us**. Although many barrier creams nowadays advertise its sun protection factor, it does not actually have a sun protection effect. If you want to achieve the best sun protection effect, it is better to choose sunscreen, because sunscreen is a professional sunscreen product.
It's a mistake to think that using a barrier cream can protect you from the sun.
Choosing sunscreen according to your skin type can not only achieve the effect of sun protection, but also better modify the skin condition. Because many brands of sunscreen now have not only the role of sunscreen, they can also brighten the skin tone or modify the redness on our face, and the barrier cream can play a role in improving the skin tone in addition to isolation, so sunscreen can replace isolation, but isolation cannot replace sunscreen.
Of course, the combination of sunscreen and barrier will bring better results, because sunscreen is generally a chemical effect, and only when it comes into contact with our **, it can play a greater role, and if you use isolation first and then use sunscreen, it will weaken the sunscreen. The dirt that is isolated from the air can also improve our skin tone, so sun protection and then isolation can ensure that both can play their role and present a perfect skin condition at the same time.
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Sunscreen and base cream can be used at the same time. Use isolation first, and then use sunscreen, isolation can prevent the damage caused by sunscreen to **, and there are generally more isolation with sunscreen index. When you are facing the computer indoors, it is good to apply some isolation, first use the brigade sunscreen balance stool and then rub the powder, but it is not recommended to use powder in summer, it is easy to clog pores.
If the base and foundation are well matched and can be evenly adhered to the skin, then the general foundation will have enough sun protection to protect against daily UV rays. However, if you're out all day or outdoors for a long time, you also need to consider the possibility of your foundation falling off, so it's safer to choose a base cream with a high SPF value. However, it's important to note that even if you choose a base cream and foundation with the same SPF value of 25, the final defense will not be SPF 50.
The most important thing is not to layer the two, but to touch up the makeup at the right time.
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Today's skincare manufacturers are increasingly thinking about the needs of their customers in the face of fierce competition. In the past, sunscreen and isolation were often produced and sold separately, but now, in order to facilitate the needs of people's fast-paced life, they have been perfectly integrated into one, and do not forget to protect from the sun while isolating.
Learning to drive in summer is much harder than in winter, with sunshine, sweat, mosquitoes, and irritability all causing inconvenience. Therefore, fresh sunscreen, antiperspirant lotion, and mosquito repellent are all necessary.
sunscreen, index SPF 30 or above, the effective time lasts for 6 hours; Index SPF above 40, the utility time lasts for 7 hours; For outdoor activities in highland areas, it is recommended to use sunscreen with an SPF of 60 or higher.
Anti-mosquito: When camping outdoors, toilet water can not really prevent mosquito bites, real medicinal insect repellent bite liquid does not contain alcohol and fragrances, and the effective time is more than 5 hours.
Recommended: Handsfree Anti-Mosquito Sun Oil (SPF30) Sunscreen, La Roche-Posay Sunscreen SPF60, Shiseido Anisan or Sunny Summer, Wuno Men's Sunscreen (with Mint), Yue Sai Sunscreen Waterproof. These brands are good!
As for sweat suppression, you can choose Adidas!
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You can not use it, but if you are outdoors for a long time, it is better to use it when the sun is strong.
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Agree with the upstairs, 12-20 times it's OK, if it's a general activity, it's recommended that you use 30-50 times the lancome if you learn to drive.
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1. All general barrier creams have sun protection factor, and the main function of barrier cream is to "isolate". First of all, it forms a barrier between the skin and makeup to reduce the damage of makeup. In addition, dirty air and certain radiation are isolated.
The sun protection factor of the barrier tape is generally relatively low and cannot be used as a substitute for sunscreen. It is suitable for people who spend a lot of time indoors, especially office workers who are in front of the computer every day.
In the three seasons of spring, autumn and winter, ultraviolet rays are not particularly strong, if you are outdoors, you can choose SPF20 35, if you have little outdoor time, you can choose a barrier cream with sun protection factor. But if it's summer or if you need to spend a lot of time outdoors, you need to choose a sunscreen with SPF 50. In addition to choosing a high sunscreen, you should also pay attention to reapplying it every 2-3 hours to achieve the effect of sun protection.
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Some parts of the barrier cream are available inside, depending on whether it is written on the packaging of the barrier cream.
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Look at the packaging with sunscreen, and it is marked on it.
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The principle of action of sunscreen is to isolate ** from ultraviolet rays; The first function of the barrier is to form a protective screen between the skin and makeup. The second function: sun protection, insulating dirty air. The third function: radiation protection.
The essential difference between a base cream and a sunscreen:
Sunscreen only has a sunscreen function.
In addition to sun protection, the base cream also contains antioxidants, whitening ingredients or vitamins. Compared with ordinary sunscreens, the ingredients of the base cream are purer, easier to absorb, and can prevent dirty air and UV rays.
The current common sense of skin care believes that if you just meet the sun on the way to and from work, you can just apply some barrier cream, and there is no need to apply another layer of sunscreen; However, if you need to stay outdoors in strong sunlight for a long time, it is safe to use a high-powered sunscreen.
The higher the SPF index, the stronger the sunscreen function, generally 15-25 daily. PA stands for defense, and "+" indicates defense strength, and "the more +, the better the protection against UVA-1."
Haruki's sunscreen is waterproof and sweat-resistant, which is not bad.
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It's not that the higher the index, the better the sunscreen effect.
I recommend Water Baby This is a brand that specializes in sunscreens, which is very safe and can be used by babies.
As for sunscreens, none of them are enough to be wiped once, and they all need to be reapplied It is best to reapply them every hour or two.
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Use Lens Brightening Sunscreen Cream for a long time without oil, it is a plant ingredient, you can try it.
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The two cannot be replaced, not that the higher the index, the better, Shiseido is good.
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