Anti Aging Skin Care Basics，How Much Do You Know?

Do you know what is anti aging? The cause of skin aging is very complicated, the most direct cause of which is collagen.Collagen is deep in the dermis and is produced by fibroblasts, which are collagen production machines.

These fibroblasts pull collagen efficiently and form collagen fibers, which form a tight, spring-like collagen network that supports your skin. So your skin is elastic. In the process of aging, collagen is reduced, and the relationship between fibroblasts and collagen is broken, so the collagen network is incomplete, so the skin is not tight and wrinkles appear.

So what will destroy the structure of collagen?

The reason why people age, physical decline, skin tarnish and elasticity, in addition to age is irresistible factors, the main thing is excessive free radicals in the body, younger body has a better neutralization system to exclude free radicals, reduce The damage it causes; however, as the age increases, the body's ability to repair free radicals also decreases; if the antioxidants are not replenished in time, the cells begin to damage, and the disease is produced. More and more evidence shows that the body The higher the free radical content, the shorter the life。

Strong ultraviolet rays block the repair of DNA in skin cells. 

The skin cells contain enzymes such as endonucleases, which can connect the broken DNA again. If the skin is sunburned or stays in a place where ultraviolet rays are strong for a long time, DNA can't be repaired, but it is the cause of skin cancer.

melanin in order to protect against UV rays. After sunbathing, the skin will turn black and the melanin is increased, but even if we don't sunbathe, the sunlight that comes into contact with our daily life will accumulate enough to increase melanin, so our skin will produce various freckles. Black spots and spots are also a manifestation of aging.

Eat too much sugar, easy skin aging
Many people know that eating polysaccharides can cause obesity, thus increasing the risk of chronic diseases such as high blood pressure, fatty liver, diabetes, and coronary heart disease. However, the original sugar is also related to skin aging, which is because the collagen of the skin is affected by "glycation."

Experts believe that anti-glycation occurs when eating too much sugar. Anti-glycation refers to the combination of blood sugar and protein in the body, which makes the structure of the structure lose its elasticity and become fragile. On the skin, it accumulates on the dermis and changes the connection of the cells, thus forming various skin aging conditions, such as wrinkles, loss of elasticity, sagging, and the like. Some experts said that although eating polysaccharides does not mean that there will be saccharification and aging, it is a healthy choice to reduce the absorption of sugar and sugar substitutes.

Too much sugar will speed up aging? Some studies have pointed out that saccharification induces free radicals and makes cell DNA more susceptible to UV rays. Therefore, when anti-glycation inside and outside skin care, sunscreen and anti-oxidation are good anti-aging strategies

As a professional woman, she worked day and night between work and family. She finally had time to sit on the dressing table and dressed up, but inadvertently found that wrinkles had quietly climbed onto the original smooth face.

I think of all kinds of wrinkle-removing cosmetics ads on TV, I decided to buy one to try it out, but I saw the ingredients labeled with various products such as A acid, B acid, vitamin C, etc., but I don't know how to choose: Which one is the secret of youth forever?

Everyone has a soft skin when they are born. As they age, the rate of skin cell regeneration slows down (50% when they are 80 years old). The oil secreted by the skin, and the deep cells of the skin, keeps the skin moist. The protein (collagen and elastin) is reduced, and the skin becomes dry and lacks luster.

In addition, the sun is more harmful to the skin. Dr. Hansen of the University of Illinois in the United States pointed out that 90% of skin aging is caused by ultraviolet rays in the sun. The National Institute of Basic Medical Sciences has further discovered that there is a substance in the skin (called t-UA), which is like a photoreceptor of the body, which is responsible for absorbing the high energy of ultraviolet rays, but t-UA also generates free radicals and destroys the skin. Collagen and elastin make the skin lose its elasticity.

A acid is most effective in reducing wrinkles

The United States Federal Food and Drug Administration (FDA) Cosmetics Ingredients Review pointed out that the current scientific research believes that the most effective way to remove fine lines is commonly known as A acid, a substance derived from vitamin A. 25 years ago, when the FDA approved the drug, it was originally used to treat acne, because it can promote skin cell renewal and shedding, and inhibit oil secretion, but unexpectedly found that it can promote collagen proliferation and reduce the appearance of fine lines in the sun. And spots.

However, Li Yuruo, an associate professor of dermatology at the Taipei Medical College, also stated that it increases the skin's sensitivity to sunlight and can only be used at night. Improper use can also lead to peeling and redness. It is a prescription drug that must be used safely by a doctor. General cosmetics contain similar resin retort, but do not necessarily have the same effect.

Fruit acid effect

Ancient women's skin care methods, such as using fruit to face, are in fact scientifically based. Apple, sugar cane, milk, etc. contain fruit acid, which can remove the aging cells on the surface of the skin, make the young newborn cells emerge, and clear the pores to restore the skin's luster. It may be uncomfortable (itching, redness, dryness) at the beginning of use. It is recommended to try a product with a concentration of 5%.

Fruit acid is milder than A acid, but it is not easy to penetrate deep into the skin, and the concentration of general cosmetics is only 6～8%, which can not stimulate the proliferation of collagen. The wrinkle effect is not obvious, it may take 6-8 months. see. The most commonly used fruit acid is glycolic acid, because it is the smallest molecule and most easily penetrates into the skin. In addition, some people use fruit acid products, which may cause allergies. In fact, most of them are caused by the additives contained in them, so it is best to avoid products with too complicated ingredients.

As for "fruit acid peeling", the concentration of fruit acid used is above 15%. After treatment, there will be stinging, burning and peeling. If it is not handled properly, crusting, pigmentation and infection must be carried out by a doctor. About 2 weeks after treatment, the skin discomfort will disappear. Before you follow the doctor's instructions, avoid any skin irritation, such as sun exposure, excessive skin damage, etc. After 3 months, the skin will restore its natural color and texture.

Commonly known as acetic acid, it also has the effect of renewing the skin surface cells. It is also used to treat acne. It is also soluble in fat and easily penetrates into the skin. It is less irritating than fruit acid, so it is especially suitable for people with long acne and sensitive skin.

Vitamin C and E fight UV rays

Vitamins C and E both have the function of promoting skin regeneration, and they are also called antioxidants because they inhibit free radicals and reduce the damage of ultraviolet rays to the skin. However, Gibson, a dermatologist at the Meiyou Clinic in the United States, pointed out that there is currently no evidence that they have the effect of wrinkle removal. Instead of spending money on these products, it is better to learn how to protect the skin and to play the role of skin self-repair.

Anti-wrinkle has three treasures: sunscreen, moisturizing, healthy life

Wanting youth forever, dermatologists agree that the most important thing is sun protection. The weather bureau publishes UV index forecasts every day, but even at ordinary levels (usually rainy days), sunscreen work is still essential. Especially during the use of the above acid products, the skin is more sensitive and more attention needs to be paid to sun protection.

In addition to clothing, parasols, hats to shield the sun, it is best to choose a product suitable for personal skin, sun protection factor (also known as SPF) greater than 15, re-wipe every 1 2 hours. Try to avoid going out when the UV is most intense between 11 am and 3 pm. Dr. Bovik, of the New York Stoke Cancer Center, solemnly said: "Even if your skin has been damaged by the sun, it is not too late to sunscreen."

In addition, the dermatologist Dr. Bergenfeed of the US Cleveland Clinic also suggested that when the skin is still wet after washing, the moisturizing liquid can be used to lock the skin moisture, and the wrinkles can be made less obvious.

Finally, the root of youth is a healthy life that is often talked about: regular exercise, adequate sleep, reduced stress, adequate intake of vitamins A, B, C, E, protein, providing collagen-forming ingredients in the body, as well as not smoking, avoiding nicotine contraction A blood vessel that supplies nutrients to the skin. Fighting wrinkles, you can still do a lot!

■A acid

Ingredients in English: Retinoic acid Tretinoin

Efficacy: promote skin cell renewal, collagen hyperplasia

Note: Must be instructed by a doctor to be safe to use

■ Fruit acid (including glycolic acid, lactic acid, acetic acid, malic acid)

Ingredients in English: alphahydroxy acids (referred to as AHA) Glycolic acid, Lactic acid, Citric Acid, Malic acid

Efficacy: remove aging cells on the skin surface, remove pores

Note: Start with a low-concentration product and avoid products with overly complex ingredients.

■B acid (ie salicylic acid)

Ingredients English: βhydroxy acid (abbreviated as BHA) Salicylic acid

Efficacy: update skin surface cells

Note: For people with long acne and sensitive skin

■Vitamin C

Ingredients in English: L-ascorbic acid

Efficacy: reduce UV damage to the skin

Note: There is no evidence to show the effect of wrinkles

■Vitamin E

Ingredients in English: Alpha-tocopherol

Efficacy: reduce UV damage to the skin

Note: There is no evidence to show the effect of wrinklest!