What do sunscreen parameters mean?
With the arrival of summer, sunscreen has become a must-have for people's daily skin care. However, faced with the dazzling array of sunscreen products on the market, many consumers are confused about the parameters of sunscreen. This article will analyze the key parameters of sunscreen in detail to help you better choose a sunscreen product that suits you.
1. Core parameters of sunscreen
The parameters of sunscreen mainly include SPF, PA value, the difference between physical sunscreen and chemical sunscreen, etc. The following is a detailed description of these parameters:
| parameters | meaning | Scope of application |
|---|---|---|
| SPF | SPF indicates the ability to protect against UVB. The higher the value, the longer the protection time. | SPF30 is recommended for daily commuting, and SPF50+ is recommended for outdoor activities. |
| PA value | Indicates the protection ability against UVA, usually expressed as a "+" number to indicate the intensity of protection. | PA+ (light protection), PA++ (moderate protection), PA+++ (high protection). |
| Physical sunscreen | UV rays are reflected by titanium dioxide or zinc oxide, making it suitable for sensitive skin. | Children, pregnant women and people with sensitive skin. |
| chemical sunscreen | It absorbs ultraviolet rays through chemical ingredients and has a light texture but may irritate the skin. | People who have healthy skin and pursue refreshing skin feel. |
2. How to choose the sunscreen that suits you?
When choosing sunscreen, you need to consider comprehensively based on your skin type, usage scenarios and needs:
1.Skin type: For oily skin, it is recommended to choose chemical sunscreen with a refreshing texture, for dry skin, moisturizing sunscreen is recommended, and for sensitive skin, physical sunscreen is preferred.
2.Usage scenarios: For daily commuting, you can choose sunscreen around SPF30. For outdoor activities or long-term exposure to the sun, you should choose high-protection products with SPF50+.
3.Waterproof: When swimming or sweating a lot, you should choose waterproof sunscreen and pay attention to reapplying it.
3. Precautions for using sunscreen
1.Dosage: Use at least a coin-sized amount each time for full coverage.
2.Touch up: Reapply every 2-3 hours, especially after swimming or sweating.
3.save: Avoid high temperature and direct sunlight. It is recommended to use it within 6 months after opening.
4. Recommendations for recent popular sunscreens
According to the hot topics and consumer feedback on the Internet in the past 10 days, the following are several sunscreens that have attracted much attention:
| Product name | SPF/PA value | Features |
|---|---|---|
| Anai sun small gold bottle | SPF50+/PA++++ | Waterproof and sweatproof, suitable for outdoor activities. |
| Biore water-based sunscreen | SPF50+/PA+++ | The texture is refreshing and suitable for daily use. |
| Avène Refreshing Sunscreen | SPF30/PA+++ | Gentle and non-irritating, suitable for sensitive skin. |
5. Summary
The parameters of sunscreen are key to choosing the right product. By understanding SPF, PA values, and the differences between physical and chemical sunscreens, consumers can make informed choices based on their needs. At the same time, correct use and regular reapplying can also maximize the sunscreen effect and protect the skin from UV damage.
I hope this article can help everyone better understand the parameters of sunscreen and do a good job of comprehensive sun protection in summer!
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