The higher the SPF, the better? 30pa ten ten what does it mean

Many people know about SPF. It is the value on the sunscreen. It is related to the environment. So, the higher the SPF, the better? What does spf30pa ten ten mean?

Is the higher the SPF, the better?

If the skin is not injured, there is generally no need to use sunscreen with a high SPF index. When choosing sunscreen products, there are two indicators to consider: SPF and PA.

SPF refers to the protection time against ultraviolet UVB. SPF1 means the protection time is about 20 minutes. If your sunscreen product is marked with SPF15, it means the protection time against ultraviolet UVB is about 300 minutes.

PA refers to the effectiveness index against ultraviolet UVA, PA+ refers to effective protection, PA++ refers to high-effective protection, and PA+++ refers to very high-effective protection.

Choose sunscreen products according to your outdoor activities.

1. Daily life and work: SPF index is 15, PA+ is enough.

2. Traveling and exercising: SPF should be above 30, PA++ or above, and the sunscreen product should also be waterproof.

3. Girls with sensitive skin should try to avoid choosing products with too high an SPF index. SPF15 is enough. At the same time, you must strengthen the skin's uninterrupted hydration to improve the skin's barrier function.

4. For oily skin, try to choose emulsion or water-based sunscreen products.

Everyone should remember that no matter what kind of sunscreen you use, you must remember to use makeup remover to double cleanse before going to bed, because the persistent ingredients in sunscreen cannot be washed away by facial cleansers or creams. If we do not clean our skin properly every day, over time, too much aging cuticle and dirt will remain on our skin, causing acne and even affecting the absorption capacity of other skin care products.

What does spf30pa 10 10 mean?

SPF is the abbreviation of Sun Protection Factor, which refers to the ability of sunscreen skin care products to protect against ultraviolet rays. The higher the SPF index, the greater the protection it provides to the skin. Different SPF values ​​mean different effective sun protection times.

Current science has confirmed that UVA-1 is the culprit that causes skin aging, so Japanese scientists have developed sunscreen products specifically to block UVA-1, and use "+" to indicate the strength of the defense. The correct name of PA is Protection of UVA-1. Its degree is indicated by three intensities: +, ++, and +++. The more "+" there are, the stronger the effect of preventing UVA-1. Sunscreen only has sun protection function. In addition to the sun protection function, isolation cream also contains antioxidant ingredients, whitening ingredients or vitamin ingredients. Compared with ordinary sunscreens, isolation creams have purer ingredients, are easier to absorb, and can prevent dirty air and ultraviolet rays from damaging the skin. If you are an office worker and only encounter the sun on your way to and from get off work, you only need to apply some primer and there is no need to apply another layer of sunscreen; but if you need to stay outdoors under strong sunlight for a long time, it is still necessary to use a high-factor sunscreen for safety.

Different SPF values ​​mean different effective sun protection times. Specifically:

SPF 15 = 15*10 = 150 minutes

SPF 20 = 20*10 = 200 minutes

SPF 30 = 30 * 10 = 300 minutes

SPF 50 = 50*10 = 500 minutes

Okay, friends, you know that the higher the SPF, the better. It depends on the environment.