Skin protection from sun exposure is important to prevent skin damage, premature aging, and the risk of skin cancer. Various products on the market are designed to protect the skin from the sun, including SPF, sunscreen, and sunblock. Despite having the same purpose, the three have composition and work mechanism differences. In this article, we will learn more about the differences between SPF, sunscreen, and sunblock and how to choose the right one for your skin's needs.
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1. SPF (Sun Protection Factor)
SPF stands for Sun Protection Factor or protection factor from the sun. The SPF number on sunscreen and sunblock products shows how much the product protects the skin from UVB rays, which can cause sunburn and lead to skin cancer. The higher the SPF number, the higher the protection from UVB rays.
- SPF 15: Provides protection from about 93% of UVB rays.
- SPF 30: Provides protection from about 97% of UVB rays.
- SPF 50: Provides protection from about 98% of UVB rays.
However, it is important to remember that SPF only measures protection against UVB rays, not UVA rays which also contribute to skin aging and skin cancer. For better protection, choose products labeled "Broad-Spectrum" that protect against UVB and UVA rays.
2. Sunscreens
Sunscreens are topical products that contain chemicals to absorb sunlight and convert it into heat which is then released from the skin. Sunscreen helps prevent sunburn and prevent sun damage. Sunscreen must be applied at least 15-30 minutes before activities in the sun and must be repeated every 3-4 hours.
3. Sunblocks
Sunblocks are topical products that contain physical ingredients such as titanium dioxide or zinc oxide. Sunblock creates a physical layer over the skin that reflects sunlight away from the skin's surface. Sunblock is more effective in protecting the skin from UVA and UVB rays and works immediately after application.
How to Choose the Right Product?
Choosing sunscreen and sunblock depends on personal preference and individual skin needs. Some people may prefer sunscreen because it has a lighter texture and easily absorbs into the skin. Meanwhile, others may choose sunblock because it protects immediately after application and does not cause allergic reactions. But now, the naming of sunscreen and sunblock is included in the marketing strategy of the skincare industry so that it is embedded in the minds of consumers that sunscreen is a sun protection product that is specifically for facial skin, while sunblock is for the skin on body parts other than the face.
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In addition, also consider the following factors:
- Skin Type: If you have sensitive skin or are prone to allergic reactions, a sunblock with ingredients like titanium dioxide or zinc oxide may be more suitable. But some people are also suitable for this type of chemical sunscreen.
- Activity: If you are out in the sun for a long time, choose a product with a high SPF and repeat the application every two hours.
- Everyday Use: If looking for products suitable for everyday use, use products with an SPF of 30 or higher to protect your skin from daily sun exposure.
Skin protection from the sun is very important for skin health and beauty. Understanding the different levels of SPF, sunscreen, and sunblock can help us choose products that suit our skin's needs. Always remember to use products with a high SPF and repeat the application every 3-4 hours, especially when doing activities in the sun. By using the right skin protection products, we can avoid the risk of skin diseases and enjoy time outdoors without worrying about skin damage from the sun.