Find a sunscreen that suits your skin type and contains a reliable ingredient that is the best defensive wall for you when going to the beach or swimming outdoors. But before you buy, consider what sunscreen can do and how it works to protect you.
While knowing that you should use your daily cream, you probably think it will really work, or if you have a darkening of your skin when using it. Fortunately, a dermatologist has the answer for you.
How does sunscreen work?
Depending on the type of sunscreen you use. Some sunscreen products create a sunscreen, while others absorb UV fetal rays because they reflect them. Mineral sunscreens or physical containing zinc oxide and titanium dioxide reflect and scatter UV rays, while ingredients like octyl methoxycinnamate (OMC), oxybenzone … in chemical sunscreens absorb UV rays and then resolve them into heat. Both types protect your skin well.
What does the SPF mean?
SPF (Sun Protection Factor) is a measure of the amount of solar energy (UV radiation) needed to cause sunburn on protected skin (using sunscreen), compared to the amount of radiation needed to burn. Sunny on unprotected skin. UVB rays cause sunburn, skin damage and can cause skin cancer. The SPF reflects 93% of UVB and SPF rays of 97% and SPF 50 is 98%. Sunscreen firms rely on independent testing companies to test the SPF index of their products according to FDA’s inspection guidelines.
Remember that SPF does not include protection against UVA rays or rays that cause premature skin aging. For comprehensive skin protection, choose a “broad-spectrum” product on the sticker.
Does sunscreen prevent black skin?
You can still get black and darken your skin when using sunscreen. However, this process will take much longer than you do not use sunscreen. There is no formula to ensure that the skin will be protected up to 100% of the UV rays.
Why does the FDA only limit SPF to 50?
While there is a big difference between SPF 15 and SPF30, there is little difference in protection between SPF30 and SPF50. Products with a higher index than SPF50 are very small. Since only SPF protects the skin from 98% UVB rays and nothing protects up to 100%, there is no significant difference when using higher index products than SPF50. These products may cause misunderstandings and cause users to rely on sunscreen. When you see products like SPF100, some people may mistake them to be completely protected from UV rays or think that the product will be effective all day.
There are no sun protection products that completely protect against UV rays, and reapplying sunscreen is necessary according to FDA guidelines.
How long does sunscreen work and how do I reapply it?
Although there are many factors that affect the effectiveness of sunscreen, from UV levels to whether you sweat or swim, experts recommend re-applying sunscreen every two hours. If you are outdoors, sweating or swimming, every 40 to 80 minutes is the ideal way to reapply sunscreen.
When can children use sunscreen?
Infants should not apply sunscreen until they are at least six months old. If you go out with your baby at the hottest time of the day, give them a hat, sunglasses and long-sleeved clothes. When you are old enough, give your baby sunscreen for children and reapply many times to ensure safety.
Does sunscreen cause vitamin D deficiency?
Sunscreens can reduce the absorption of vitamin D. If you worry about deficiency of D, check your blood to see if your vitamin D levels are low. However, if there is a shortage, taking functional foods will bring more benefits than exposure in the sun with many potential risks.UVA and UVB can lead to skin cancer, so take vitamin D tablets and reduce sun exposure time rather than keeping your body at risk for cancer.
DIY sunscreen effective?
If you think about mixing your own sunscreen to save on a beach trip, think again. You cannot guarantee the safety as well as the amount of zinc or titanium dioxide used. Besides, instead of using homemade products, you can wear long-sleeved clothes or a wide-brimmed hat to protect the skin. Eating lots of foods containing antioxidants also helps prevent UV damage.
Also, if you don’t like sunscreen whitening cream, new generation creams now come in both spray and foundation colors, not only effective but also convenient for you to reapply. anytime and anywhere.