The 15 skin care tips that doctors only know help you save money and become beautiful.

In the hearts of many little sisters, skin care is bigger than heaven.

Some readers said that they were too tired to come home from work and fell asleep playing with their mobile phones. When they woke up in the early morning, the first thing that came to mind was to remove makeup.

Despite his hard work in skin care, his skin is ungrateful. Acne, spots, fine lines and dark spots take turns to attack, one after another, which makes people overwhelmed.

Why is this happening? This is probably because you don’t know these skin care knowledge.

1. Skin care products have 2 service life

Skin care products have not only a shelf life, but also a shelf life after opening.

This Kaifeng shelf life is because the internal environment of skin care products is relatively sterile before opening the lid. Once opened, there will be fungi, bacteria and other microorganisms entering it, which may deteriorate beyond the shelf life.

Kaifeng shelf life can be seen in skin care bottles.

2. Natural, plant, Chinese herbal medicine and other skin care products are not safer,

Many skin care products that claim to be [pure natural/pure plant/Chinese herbal medicine] are really just claims.

For example, XX brand cucumber water, is it really only cucumber squeezed water? How to store without preservatives? How to maintain the stability of the product? Normal cucumber juice breaks down the next day. Where does the cucumber smell come from when you open the product?

In addition, pure nature ≠ safety. For example, homemade lemon slices are applied to the face. Originally, lemon was expected to whiten the skin, but in fact it is easy to burn the skin with high concentration of citric acid.

3. It is unreliable to detect fluorescent agents in skin care products by oneself.

I use an ultraviolet pen (similar to a banknote-checking pen) to measure the fluorescent agent in the facial mask, and the results are often inaccurate.

Because there are many substances that can produce fluorescent reactions under ultraviolet radiation, besides fluorescent agents, there are chlorophyll, vitamin C, vitamin E, etc. There are fluorescent reactions ≠ fluorescent agents, so there is no need to worry too much.

Regular manufacturers will not directly add fluorescent agents to their products, choose regular products, and identify signs such as [Wei Zhuang Zhun Zi] [Wei Zhuang Bei Jin Zi].

4. Wash your face without over-cleaning

If you wash your face more than 3 times a day, you always want to exfoliate and exfoliate your skin. When your face is oily, you cannot help washing it … it is tantamount to death. Excessive cleaning is easy to damage the skin’s surface barrier and affect skin health.

Generally, it is enough to wash your face twice a day. After washing, it is not tight or dry. It feels like Q-bomb, which is enough.

Keratinocytes have their own metabolic rules. Under normal circumstances, the skin metabolic cycle is 28 days, and there is no need to exfoliate specially. Frequent exfoliation makes skin more prone to problems.

5. If you don’t have makeup, don’t take it off

Remove makeup, in fact, is to do facial cleaning, without makeup also remove makeup, may cause excessive cleaning.

Makeup remover products include oil, milk and water. No matter what the composition is, they will take away facial grease during makeup remover. If they are used together with cosmetic cotton, the skin irritation may be greater.

6. Facial Cleanser Don’t Pursue Foam as More as Better

The amount of foam is not only related to the composition of the product, but also cannot be separated from the packaging method of the product. For the same product, bubbles made with bubbling bottles and bubbles made without bubbling bottles are probably two styles of painting.

Fully foamed facial cleanser increases the contact area with skin, thus enhancing the cleaning effect.

However, not everyone needs to enhance the cleaning effect and be careful about over-cleaning.

7. [Water-Oil Balance] is a pseudo concept

Looking through the medical data, there was no sign of [water-oil balance].

The degree of skin moisture is related to moisturizing, while the secretion of oil is related to the degree of sebaceous gland development, temperature, hormone level, etc.

Water and oil really have nothing to do, let alone balance. People who advise you to balance water and oil may want to cheat you of your money.

8. Apply skin care products as soon as possible after washing your face.

Just after washing the face, the stratum corneum of the skin is full of water. At this time, some water, milk, etc. will establish a layer of oil film and moisturizing barrier for the skin to reduce the loss of water from the stratum corneum.

Of course, water, milk and essence are not necessary and can be flexibly selected according to your skin.

9. Mask has no magic effect,

Whitening, acne removal, spot lightening… There are many kinds of facial masks on the market, most of which are exaggerated.

The biggest function of facial mask is to supplement the moisture of stratum corneum, and the immediate moisturizing effect is better, making people look [watery].

However, most facial masks contain less oil and have weak moisturizing effect. In addition, the more facial masks are applied, the better. The frequency of application should be determined according to skin quality, generally 2-3 times a week.

10. On cloudy days, don’t forget to protect yourself from the sun in winter.

The most reliable way to judge whether to protect from the sun is not to look at the season or the weather, but at the ultraviolet index.

Before going out, take a look at the ultraviolet index and know how to protect yourself from the sun.

In addition to applying sunscreen, there are also sunshade umbrellas, sunshade hats, sunglasses, protective sleeves, etc.

11. Not enough sunscreen = Not enough sunscreen

If you do not apply enough sunscreen, you will not achieve the ideal sunscreen effect. When using sunscreen, the dosage should be 2 mg/cm ².

According to this standard, it takes about 0.9 g sunscreen to apply a face.

12. For outdoor activities, sunscreen should be supplemented every two hours.

Most sunscreens and sunscreen components will decompose after being irradiated by ultraviolet rays, resulting in a decrease in protection.

In addition, sweating is easy to wash away the sunscreen, and the sunscreen film will become incomplete, so it needs to be applied frequently.

13. Aloe vera gel cannot remove pockmarks.

Aloe vera gel can replenish water, but there is nothing we can do about pockmarks.

In most cases, time will take away these pockmarks. However, there are also some cases where acne is stubborn and unwilling to go offline. At this time, medical and beauty treatment can be considered.

Aloe vera gel is of no use in removing pockmarks.

14. Pearl Powder Can’t Whiten

Calcium carbonate, the main component of pearl powder, has no whitening effect.

Some little sisters turned white after applying pearl powder, mainly because of the “false white” of calcium carbonate left on their faces.

15. Eat less sweets when you have acne.

Sugar in sweets, after being ingested in large quantities, will lead to high blood sugar, which will further cause a series of body reactions, stimulate sebum secretion and aggravate acne.

Moreover, eating too much sweet will make you fat!

In order to make the skin tender and radiant forever, compared with blindly following the trend and repeatedly trying and making mistakes, it is more important to find a scientific skin care method suitable for oneself and persevere. Frozen age is not a dream.