Why does my skin tan easily, no, it s only been a few days and it s darkened, annoying 20

After basking in the sun, Pichangpin's skin darkens because the ultraviolet rays in the sun cause melanin formation to settle down. When a person's exposure to sunlight absorbs ultraviolet rays and causes ultraviolet pigmentation, it is called ultraviolet tanning reaction. Ultraviolet light causes oxidation of melanin precursors to produce an unstable dark color that causes immediate blackening, a reaction that is reversible but increases with sun exposure.

This kind of concomitant kun-like zinc oxide structure is transformed into mature melanin ** by multiple oxidative polymerization reactions, and the duration of blackening is also correspondingly prolonged until it enters the continuous blackening reaction. Delayed melanism, the reaction process. Spending a long time in the sun, in addition to tanning, will also increase the probability of suffering from ** diseases, and you should pay attention to sun protection in daily life.

Summer. Or at high altitudes, the sun is particularly sufficient, try to wear long pants and long sleeves to cover the partially exposed areas, apply appropriate sunscreen, and appropriate refill pictures, when going out, you should choose products with high sun protection factor. Avoid staying up late to promote your own melatonin formation, because the body synthesizes large amounts of melatonin at night to help fight ultraviolet rays.

If you stay up late, then insufficient melatonin secretion is not conducive to fighting ultraviolet rays.

The human body is not easy to tan when it is young. However, the older you get, the easier it is to get a tan. This is how the body signs of aging. And Europeans and Americans especially like to bask in the sun. In this way, they age very quickly.

Why do some people get tanned as soon as they get a tan, but some people don't? I can be considered to understand.

Melanin is a dark-brown pigment found in plants and animals that is produced and stored by a special type of cell called melanocytes. It is because of the presence of melanin that the color is created.

Some people don't tan or not, some people are easy to tan, that's determined by the different amounts of melanin in the human body, some people are not easy to tan, that is, those people lack a certain amount of melanin in their bodies, so after the sun, the pigment is not easy to deposition, and it is not easy to darken.

However, this kind of person also has bad times, because they lack a certain amount of melanin, so it is easy to get **disease, ** is also very sensitive The most likely thing to get is **cancer.

And some people are easy to tan, that is, there is more melanin in the body, and the pigment is dedeposited faster, the biggest advantage of this kind of people is that they are basically healthy, have a strong ability to resist, and generally do not have any ** diseases and the like.

Everyone's skin type is different, so it's different.

Because the amount of melanin varies between the human body.

1. Tanning is determined by the different amounts of melanin in the human body.

2. Some people are not easy to tan, that is, those people lack a certain amount of melanin in their bodies, so it is not easy to deposit pigment after the sun is not easy to darken. This kind of person is very sensitive and prone to cancer.

3. Some people are easy to tan, that is, there is more melanin in the body, and the pigment is deposited faster. Generally, there will be no ** disease or anything like that.

How to deal with a tan**:

Step 1: 1 hour after sunburn: dip a cotton pad in ice lotion and apply it to your face.

Soak a cotton pad in lotion for a few minutes, if possible, it is best to put it in the refrigerator and chill it for 10 minutes, and apply it to the hot area of the face to relieve the burning sensation on the face as soon as possible.

After applying it to your face for 10 minutes, you can clearly feel that the original feeling of burning on your face has been relieved a little.

Step 2: 2 hours after sunburn: Cool** to reduce skin temperature.

Apply a cotton pad dipped in iced lotion to the face and apply it to the skin surface to absorb the heat with a cool** specially designed for the sun.

After applying the cold **, you will feel that your face will become cool, and the redness on your face will gradually disappear.

Step 3: 4 hours after sunburn: Use moisturizing gel for basic hydration.

After basic cooling with lotion and ice**, use a hydrating gel to lock in moisture while the moisture is still dry.

Moisturizing gel cools and calms the skin. If you don't do moisturizing work in time,** you will secrete a lot of oil to ensure the balance of water and oil, and after using the moisturizing gel, you will notice a decrease in oil secretion on your face.

Step 4: 6 hours after sunburn: Hydration** for deep care.

Applying hydration before bedtime** can effectively soothe after sun** and quickly replenish lost moisture to the skin. People who are concerned about spots choose whitening** to prevent it, and metabolize the dullness and pigmentation that have been formed.

Problems such as dryness and roughness that occur after severe sunburn will be alleviated or even avoided altogether after the long list of repairs mentioned above.

First aid measures after the sun are not complicated, and you will definitely be able to learn if you have the heart.

Go to a professional beauty institution to do VC pouring, the effect is obvious, but you need to pay attention to sun protection after doing it.

Double care with whitening lotion. Lotion containing plant whitening ingredients can not only play the role of secondary cleansing, but also achieve astringency and whitening through the rapid penetration of water, if you used to use just ordinary toner, why not replace it with a special whitening lotion!