This is an automatically translated article.
Sunscreen is always an indispensable item to protect the skin against the harmful effects of UV rays, whether it is hot or cloudy day. However, many users are still not clear about the properties of sunscreens, especially physical sunscreens, to optimize the ability of this product.
1. What is a physical sunscreen?
Physical sunscreen (sunblock) is a type of sunscreen that acts according to the light-reflecting mechanism, helping sunlight to be reflected off the skin and not penetrate, thereby helping to protect the skin.
Titanium Dioxide and Zinc Oxide are the two main ingredients of physical sunscreens, which are responsible for creating a barrier like a shield to reflect ultraviolet rays. Physical sunscreens are suitable for many different skin types, including sensitive or dry skin because of their oxybenzone and PABA-free properties.
Kem chống nắng vật lý bảo vệ làn da của bạn theo cơ chế phản xạ ánh sáng
2. What are the advantages and disadvantages of physical sunscreens?
Physical sunscreen has the following advantages:
Broad spectrum sun protection: Protects the skin from UVA and UVB rays. Limiting the possibility of irritation: Because the layer of cream is only on the surface of the skin, it does not penetrate the skin like chemical sunscreens. Quick use effect: Works as soon as it is applied to the skin, no need to wait for absorption time. Forms a durable sunscreen for a long time, does not need to be reapplied (except for cases of participating in physical activities that easily sweat a lot). Suitable for a variety of skin types, benign and safe, even for children. Long shelf life. However, physical sunscreens still have certain disadvantages:
With a thick texture, physical sunscreens are easy to create white marks on the skin, causing unsightly with some natural tanned skin. In addition, it also thickens the pores, causing a feeling of tightness and shine. The cream is easy to drift if the skin sweats a lot, so it is not suitable if the user has to do a lot of outdoor activities or come into contact with water.
Ưu điểm của Kem chống nắng vật lý là phù hợp với các loại da, lành tính và an toàn kể cả cho trẻ em
3. Some notes when using physical sunscreen
When using physical sunscreen, users need to do a few things:
Apply the right amount of cream, not too much or too little to promote the effectiveness of sunscreen and avoid clogging the pores. pores . Do not use physical sunscreen before participating in physical activities or outdoor activities that can cause a lot of sweating. Do not use body sunscreen on the face because it is easy to cause oiliness and acne. Remember to use sunscreen on the neck area, because the skin in this area is quite thin, easily damaged under the impact of UV rays. Choose sunscreen with sun protection index suitable for living and working environment conditions. In short, physical sunscreen (sunblock) is a type of sunscreen that acts according to the light-reflecting mechanism, helping sunlight to be reflected off the skin and not penetrate, thereby helping to protect the skin. .
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