Dear, do you really know how to use sunscreen? It is not good to use a lot of silver for white flowers. In order to avoid this happening again, we must polish our eyes, learn to distinguish the quality of sunscreen, and rationally choose the sunscreen that suits you. Let's let Xiaobian teach you some tips on sun protection.
First, choose sunscreen according to skin quality
When going to the counter to choose sunscreen, first of all, you must know your skin quality, what are the requirements for sunscreen, you must have a number in your heart, and then choose the trial in a targeted manner, do not recommend which one to recommend sales, and finally buy the product. There is no such thing as what I originally asked, so I won't lose it.
1. Oily skin: Oily skin sebaceous glands are active, with large pores. Under the irradiation of ultraviolet rays, the pores will be further expanded and the oil secretion will be more. Therefore, you should choose a water-based, oil-free sunscreen with strong penetrability, which is refreshing and non-greasy, and does not clog pores. Never use sunscreen, and physical sunscreen products should be used with caution.
2. Dry skin: dry skin sebum activity is weak, skin blood circulation is poor, resulting in low moisture content of the stratum corneum, and ultraviolet light will make the skin lack of water to produce irreversible photoaging, then dry skin should pay more attention to sun protection. Sunscreen products that moisturize and add hydrating effect and enhance skin immunity are the best choices for sunscreen hydrating and anti-oxidation.
3. Sensitive skin: The natural defense function of the sensitive muscle is low, the sebum membrane and the stratum corneum are thin, and the ability to resist external adverse factors is weak, and ultraviolet rays are likely to cause light sensitivity. When choosing a sunscreen, safety should be a priority. You can choose a sunscreen that is specially designed for sensitive skin, or the product description clearly states â€œby allergy testâ€, â€œthrough dermatologist for clinical testing of young childrenâ€, â€œwithout fragranceâ€ Preservatives and other explanatory texts, it is best to choose physical sunscreen. Before use, it is best to test the sunscreen on the wrist or behind the ear. After 24 hours, there is no response and you can use it with confidence.
4. Acne-type skin: Acne muscle mainly occurs on oily skin, but more depressed than oily skin is easy to infect and breed more acne. As with oily skin, you should choose a water-based and oil-free sunscreen with strong penetrability. However, when the acne is serious, inflamed or damaged, you need to suspend the use of sunscreen and go out for a temporary physical mask.
Second, find out the sun protection index SPF and PA
SPF and PA values â€‹â€‹are marked on each bottle of sunscreen, but they don't necessarily understand the true meaning of them. SPF is the abbreviation of SUN Protection Factor, which indicates the level of sun protection that sunscreen products can exert. It is based on the lowest erythema dose of the skin. The higher the SPF index, the greater the protection given, but the increase in SPF is not directly proportional to the ability to withstand UV.
In addition to the SPF value, the PA value is also an important criterion for measuring the sun protection index. Science has confirmed that UVA-1 is the murderer of skin aging, so Japanese scientists have developed a sunscreen that specifically resists UVA-1, and uses "+" to indicate the strength of defense. The correct statement of PA is Protection of UVA-1, its degree is marked by three strengths of +, ++, +++. The more "+", the better the effect of anti-UVA.
Third, read the ingredients are not fooled
Sometimes when choosing sunscreens, sales praises the product as if it were a sunscreen. If you can't read the ingredients, you can only be foolishly fooled by her. Here are a few common ingredients and their effects. If you hear a problem next time, let's go with sales theory.
â— Non-comedogenic: It means that the product does not cause acne, and it is suitable for people who are prone to acne with oil.
â—Waterproof: This sunscreen can ensure sunscreen effect within 80 minutes after launching.
â—Water resistant: It means that the sunscreen can ensure the sunscreen effect within 40 minutes after launching.
â— Sweat resistant: sunscreen products with anti-sweat effect, of course, these products are not as waterproof as sunscreen products with waterproofing effect.
â— Hypoallergenic: a low sensitivity product. Indicates that the sunscreen product is suitable for sensitive skin and children.
â— Oil Free: A refreshing sunscreen that is free of oils and fats. You only need to apply the product lightly on the back of the hand or the tiger's mouth. If the skin can be absorbed quickly, without stickiness, oily feeling, and feel fresh and moist, you can basically assume that the product is a qualified refreshing sunscreen.
â— KPF: Abbreviation for Keratin Protection Factor. The new term for beauty that appears soon is a sun protection index for hair that is divided into 10 levels. There are many hairdressing products on the market that are marked with KPF, which refers to the ability to protect the scalp.
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