Dr. Ehsani, a dermatologist, said: “One of the derivatives of vitamin A is called retinyl palmitate, which belongs to the retinol family.” It is as safe as retinol and this is not surprising because retinyl palmitate is converted to retinol on the skin.
“The problem is that retinol returns to cell volume, something we look for at night but do not want to happen during the day,” he said of the problem with retinol palmitate.
“People should see a doctor to choose the right sunscreen for their skin so that they do not suffer from the side effects,” he said.
He further advised: Traffic should be avoided as much as possible during the peak hours of the sun, such as 10 to 4 pm, and cosmetics that also have a sunscreen role can be used to protect the lips.
In the end, he said: eye protection should not be forgotten and care should be taken to choose standard glasses and to be able to absorb negative ultraviolet rays well.
What should be considered before choosing a sunscreen?
The choice of sunscreen in winter and summer is not much different; But in choosing the right sunscreen, there are a few key things to consider:
1- In summer, because sweating is more than in winter, the use of sunscreens should be renewed with a shorter interval, which is recommended every 2 hours. In winter, because the air is drier and sweating is less and the skin is washed outside due to cold weather and low sweating, sunscreen can be used less frequently;
That is, once every 3 hours seems to be enough; Of course, as mentioned, skiers must be very careful; That is, firstly, use sunscreens with high SPF (50 and above), secondly, renew the sunscreen every 1 to 2 hours; Because snow and ice reflect up to 85% of UVB and the risk of sunburn in these conditions is very high.
2- People with dry skin, it is better to use sunscreens in winter that also contain moisturizers, and the use of non-greasy sunscreens is not suitable for these people; These people should avoid washing their skin excessively. Of course, patients with acne should continue to use non-greasy sunscreens this season, and if they feel dry, they can get help from non-greasy moisturizers.
3- Usually the question arises that people who want to use moisturizing creams, should they apply sunscreen first or moisturizing cream first? The answer is that if a person uses physical sunscreen, he can apply moisturizer first and then use sunscreen; But if you use chemical sunscreen, you should first apply sunscreen on clean, non-greasy skin and not use another cream for at least 20 minutes to absorb the skin, and then apply moisturizer.
Source: Cute Iran