Iron and blood military regulations: lazy people choose the sunscreen of the big group
No time to learn sunscreen knowledge, lazy people pick the brand. Large companies such as L'Oréal Group and Estee Lauder Group have their own patented sunscreen ingredients, which are used in sunscreen products of different lines under the company. In this way, you can choose products according to your own pockets, and you can enjoy the most advanced research and development results of the big group with a small amount of money.
Iron and blood military regulations 2: physical sunscreen or chemical sunscreen?
For a long time, many consumers have been thinking about the safer physical sunscreen, and therefore they are scornful of chemical sunscreen. In fact, this is a misunderstanding. Except for a very small part of very sensitive skin, most skin types are suitable for both types of sun protection, and there is no allergic problem. Although physical sunscreens are safe and not sensitive, they are more suitable for blocking UVB. It is more difficult to protect the skin from penetrating UVA, while chemical sunscreens can absorb UVA and UVB. If you still have a headache for which one to choose, choose a brand that combines two sunscreens, or use physical sunscreen and chemical sunscreen alternately.
Jagged Army Rule 3: With basic common sense, you can buy it with confidence.
Ultraviolet rays are divided into three bands depending on the wavelength: long-wave ultraviolet UVA, medium-wave ultraviolet UVB, and short-wave ultraviolet UVC. Most of the UVB and all UVC are absorbed by the ozone layer. In the ultraviolet rays that reach the surface of our skin, 95% are UVA and 5% are UVB. That is to say, sun protection is UVA and UVB. What we usually call the SPF index represents the ability to isolate UVB rays. For the UVA isolation protection capability, the PA "+" is used to indicate that the European brand is also represented by PPD or PFA.
Iron IV: Children, drug users need sunscreen more
Don't think that children don't need sun protection. Children have more outdoor activities than adults, so they are more likely to be exposed to UV rays, especially for children under 3 years of age. If they are exposed to the sun without protection, the UV damage to the skin. It will be lifelong and will not be able to make up later. In addition, certain antibacterial and antihypertensive drugs containing sulfa, chlorpromazine, tetracycline, nalidixic acid and other ingredients may cause skin sensitivity, and additional sun protection is required during the administration of such drugs.
Iron and Blood Military Regulations 5: Immediately cool the skin after sun exposure
After sun exposure, you can clearly feel the rise in skin temperature, which is the first distress signal it sends out. At this time, you should use a lot of cold water to rinse or coldly apply the sun-dried parts. Pay attention to the gentle movement, do not rub and rub, so as not to aggravate the injury. Also avoid the hot water one by one to avoid swelling and congestion of the capillaries and worsening the snow.
Jagged Army Six: Timely smearing can play a role
Don't always go out to rush to rub the sunscreen. Sunscreen products usually only have 15-20 minutes to exert a good sunscreen effect. Especially chemical sunscreens are recommended to be applied 30 minutes before going out. In addition, for a long time in the sun, every 2-3 hours to repeat the application of sunscreen products, if there is makeup, there is no way to make up, you can make up some powder with a sunscreen index. If it is in a hydrophilic place such as a swimming pool or a beach, dry it every 2 hours and repeat the application of waterproof sunscreen products.
Jagged Military Regulations 7: Not enough, your sunscreen discount
The SPF index indicated by the sunscreen is measured by applying a 2 mg dose per square centimeter of skin. However, the average use of sunscreens by most consumers is only 0.5 mg-1 mg/cm2, which means only 1/4 to 1/2 of the standard usage. So tan, sunburn, don't rush to blame the sunscreen, no effect, it is likely that your application amount has a discount.
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