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The dish has the effect of sunscreen and ultraviolet rays, increasing collagen

Summer is the easiest time of year to get sunlight and vitamin D. But this is also the time when skin is most susceptible to sunburn. Furthermore, unprotected exposure to the sun’s ultraviolet (UV) rays can damage the skin, eyes, and immune system. Skin damage from the sun can lead to skin cancer or premature skin aging.

Although we can’t completely prevent the effects of sunlight on our skin, if we take reasonable precautions during hot days, such as: use sunscreenwearing a sun hat and UV protection clothes, eating foods with anti-ultraviolet rays… will also help your body stay healthy, your skin better protected.


BSCKII Dermatology Nguyen Phuong Thao.

BSCKII Dermatology Nguyen Phuong Thao (Pensilia Dermatology Clinic) will give us advice on how to apply sunscreenas well as how to choose the right food in summer days.

In hot summer conditions. How can we protect our skin against harmful rays from the sun, doctor?

BSCKII Dermatology Nguyen Phuong Thao: The best way to protect yourself against sun damage is to limit sun exposure and always protect your skin.


Regularly apply a broad-spectrum water-resistant sunscreen with an SPF (Sun Protection Factor) of at least 30 to all exposed skin.

Wear protective clothing such as long-sleeved shirts, long pants, wide-brimmed hats, and sunglasses whenever possible.

– Remember that the sun’s rays are strongest between 10am and 4pm. So if you have to stand in the sun, you should find shade.

Protect your lips with a lip balm with an SPF of at least 15.

Can sunscreen protect 100% of the skin in the sun?

BSCKII Dermatology Nguyen Phuong ThaoSunscreen: Sunscreen protects the skin from sunburn and plays an important role in blocking the penetration of ultraviolet (UV) radiation. But no sunscreen product blocks 100% of UV rays. Therefore, when going out, you should use a mask, sun hat and wear sunglasses.

How long before we go out should we apply sunscreen? How often should I reapply?

BSCKII Dermatology Nguyen Phuong Thao: Before going out 30 minutes, you should apply sunscreen. We should only leave the sunscreen on the skin for about 4-5 hours and then wash the face and reapply another layer on the surface of the skin. There is one place that people often forget to apply sunscreen and that is the eye area. This is a very sensitive skin area and is very susceptible to sunlight. When the sun shines on that sensitive and fragile skin, the skin is very prone to wrinkles or sagging, excess skin.

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So each time, how much sunscreen is enough, doctor?

BSCKII Dermatology Nguyen Phuong Thao: Usually, the amount of sunscreen with 1 knuckle is enough to cover the entire face.

What to pay attention to when choosing sunscreen?

BSCKII Dermatology Nguyen Phuong Thao: When choosing a sunscreen, you should choose a sunscreen with full sun protection, including SPF (anti-UVB), PA (anti-UVA), HER Vi (anti-visible light), IR (anti-infrared) ).

When you have acne on your face, should you wear sunscreen or not?

BSCKII Dermatology Nguyen Phuong Thao: According to the doctor, in this case we should not apply sunscreen. Because using sunscreen will contribute to more clogged pores, not to mention the active ingredients in sunscreen can cause skin irritation. Sunshade with a mask is still a safe choice when the skin has an open wound.

Can your doctor suggest some foods to eat in the summer to increase the effectiveness of sun protection, as well as increase collagen production skin beauty.

BSCKII Dermatology Nguyen Phuong Thao: Evidence shows that diet can dramatically change how the skin responds to the sun. The epidermis is a barrier capable of protecting the body from the external environment, including protecting the skin from UV radiation and pollution.

Foods that can help reduce the harmful effects of UV rays on the skin naturally are:

– Yam: Beta-carotene and lycopene give fruits and vegetables their vibrant orange color and also provide the skin with antioxidants, which act as a protective shield against the sun’s rays. The body converts the phytonutrient beta-carotene into vitamin A, which has been shown to work reduce sunburn. Beta-carotene also encourages the body to produce melanin which helps protect the skin from the sun.


– Strawberry: Strawberries are a natural sunscreen because they contain 108% of the vitamin C that the body needs for the day. Furthermore, strawberries contain ellagic acid, which helps eliminate free radicals and reduce pigmentation caused by sun damage.

– Tea: Green tea promotes DNA repair because it contains the polyphenol Epigallocatechin Gallate (EGCG). Green tea also contains catechins, which are polyphenols that have antibacterial and anti-inflammatory properties. Green tea is also high in vitamins B2 and E that hydrate and protect the skin from environmental aggressors.

– Oatmeal: Oatmeal soothes sunburn with its antioxidant, antifungal and moisturizing properties. Moreover, this dish also contains free radical scavengers called saponins. Oatmeal can be mixed with water and used topically on sunburn or as an exfoliator prior to sun exposure.

– Cucumber: Cucumber helps the body to produce collagen. 96% cucumbers are water, so cucumbers are extremely moisturizing. In addition, cucumbers contain vitamin C, caffeic acid, potassium, and vitamin K. Vitamin K helps heal the skin, so it’s great for soothing sunburn. Caffeic acid is high in antioxidants and helps protect the skin from oxidative stress and DNA damage.

– Tomato: Similar to strawberries, tomatoes contain lycopene. Lycopene is an antioxidant that protects the skin from cell damage. Tomatoes are also high in vitamin C – just one cup of tomato juice provides 188.9% of the body’s daily vitamin C needs. One study showed that the phytochemicals in tomatoes reduced sunburn in animal studies.


– Watermelon: 92% of watermelons are water, so they are great for keeping the skin hydrated. Watermelon also contains many skin-beneficial nutrients such as vitamins A, B6 and C. Watermelon also contains the antioxidant lycopene and the amino acid arginine. Both help protect the skin from damage and aid in blood circulation and protein formation.

– Carrot: Carrots are high in beta-carotene, which the body converts to vitamin A. Beta-carotene also reduces inflammation caused by sunburn. Sun exposure creates additional free radicals so vitamin C from carrots is also great for protecting skin from sun damage. Carotenoids signal gene expression at the cellular level and provide photoprotective qualities that can mitigate sun damage.

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