Summer sunscreen science is here

Summer is about to arrive, but wants to travel easily, but can't resist ultraviolet rays. As the temperature rises, the demand for sun protection is increasing, and people are becoming more and more aware of the importance of sun protection. In addition to sun protection, the aging of skin caused by ultraviolet rays has also become the focus of attention of young people.

UVB is divided into two types of UVB and UVA. According to research, UVB is a medium -wave ultraviolet rays that can cause the skin to sunburn, reddish red in a short time, and even damage the cell DNA to cause cancer. UVA is long -wave ultraviolet rays that can penetrate the surface of the skin and penetrate the tissue below the leather to destroy the fine structure inside the skin such as collagen and elastic fiber tissue, produce wrinkles and young patterns, which relaxes the skin. This is the medical call " Light aging. " If you do not take sunscreen measures, you cannot fight UV damage to the skin. So, how to choose sunscreen?

High multiple protection coefficient

SPF, that is, the sunscreen index is a measured UV radiation required to generate sunburn on the protected skin (that is, under the sun). With the increase of the SPF value, the increase in sunburn protection increases, SPF50 = 15 minutes*50/60 = 12.5h protection. Therefore, the height of the sun protection index can reflect the size of the ultraviolet protection capacity of sunscreen products to a certain extent. The PA value, referred to as the protective coefficient, is a protection evaluation of UVA, and it is also a time multiple of delaying the skin of the skin. Its degree is marked with three intensity of+, ++, +++: PA+, delaying black 2 to 4 times; PA ++, delaying black 4-8 ​​times; PA +++, delaying black sunbathing by more than 8 times.

The use of sunscreen products in summer is most afraid of it and getting greasy, making the skin unable to breathe. The skin should be kept refreshing. The current sunscreen products are increasingly taking into account the protection and skin feel. Whether it is emulsion, frost, or even spray -based sunscreen products, they pay more attention to consumer experience. You only need to apply a thin layer on the skin to be able to It plays a good sunscreen and gives the skin without any burden.

The hot sun is just a "sunscreen" protection that is difficult to resist the damage caused by the strong ultraviolet rays to the skin. Multi -care sunscreen products can help skin sun protection and old sun protection, but also allow the skin to relieve repair and protect the protection. For example, some sunscreen products will add aloe extract to play a role in moisturizing the skin and effectively prevent skin dryness and peeling.

Coppertone water baby focuses on sunscreen SPF50, PA ++++, which blocks 98%of ultraviolet rays while bringing a thin skin sensation experience like air, preventing skin black, redness, and sunburn. A bottle can be safe in summer.

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