Health

How to use sunscreen effectively


Choose the right cream, apply it indoors, reapply after two hours, combine a mask, wide-brimmed hat, sunscreen, and sunglasses for sun protection.

Doctor Do Kim Anh, High-tech Plastic Surgery Department, Hanoi Medical University Hospital, said that sunscreen is not only for sun protection (when you have to be outdoors) but also to deal with Ultraviolet beams exist invisible around.

Most sunscreens talk a lot about their effectiveness against UVB rays ultraviolet B) and rarely mention UVA rays ( ultraviolet wavelength A). However, UVA rays can penetrate the skin deeper and last longer, and cause premature skin aging. UVA rays are more active when it’s shady, while UVB rays are more active when it’s sunny. Therefore, you should prioritize sunscreen products with broad spectrum index, with minimum SPF 30 and PA++ or higher.

Next, you need to choose a sunscreen suitable for your skin condition, avoid acne and apply sunscreen 20 minutes before stepping out of the house. “Sunscreen does not make the skin more beautiful immediately, but it helps protect the skin, prevent aging, reduce pigmentation problems such as dark spots… Even at home, you should still use sunscreen,” Dr. Kim Anh said. speak.

People should reapply the cream after two hours to avoid darkening of the skin. If you must be active in the sun, you can increase the frequency of reapplying the cream to ensure optimal skin protection.

In addition, people should apply sunscreen evenly all over the body, limiting uneven skin tone. Note, there are creams that promote sun protection right after applying, but there are also types that have to wait about 30 minutes before leaving the house. “Don’t skimp on sunscreen. When the sunscreen is too thin, ultraviolet rays pass through easily, it doesn’t make sense to spend time and effort applying the cream,” the expert said.

In the hot season, you sweat a lot, you should choose a sunscreen with more water resistance for better skin protection. If you wear makeup, you should apply sunscreen first or use a tinted sunscreen, which helps to replace the makeup base.

In addition, doctor Thai Thanh Yen, Department of Aesthetic Dermatology, University of Medicine and Pharmacy Hospital, Ho Chi Minh City, instructs that when applying the cream, you should dot it in many spots on your face and then pat it for an even coverage and quick absorption. than. Do not pour the cream on your hands and then rub it on the skin because the dose cannot be controlled. Not rubbing, rubbing reduces the sun protection index by 25% and increases the possibility of irritation, weakening the protective ability of the cream. Do not use your hands to apply and rub the cream in a circle or spiral, it will cause the cream to spread, clump, and make wrinkles on the skin, clogged pores, leading to acne.

In addition to the cream layer, you should combine more masks, wide-brimmed hats, long-sleeved shirts, sunglasses, … for effective sun protection. Avoid direct exposure to the sun from 10am to 4pm, which is the peak time for sunlight. Limit swimming in the beach or swimming pool during hot and sunny hours.

People can supplement with sunscreen and anti-oxidant tablets and need to consult a dermatologist to use the right medicine, suitable for health.

Thuy An

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