major function
Water is the source of life, and the aging body will gradually lose water. Hyaluronic acid is the most important substance for water retention in human tissues. The content of hyaluronic acid in human body will decrease with the increase of age, which will cause dry skin and wrinkles. Moisturizing is the first step of skin care. The moisture content of healthy skin should be maintained at about 65,438+0.5 ~ 20%. Hyaluronic acid's moisturizing effect is 1.6 times that of collagen, and its water retention value can reach 1 1,000 cc/g, which is recognized as the best moisturizing product in today's literature. Hyaluronic acid is called "the best moisturizing factor" because it can keep skin healthy for a long time.
1, keep skin elastic:
After oral hyaluronic acid absorbs water, elastic fibers and collagen are in a moist environment, which provides a suitable environment for collagen supplemented by the outside world to synthesize its own collagen, improves the utilization rate of collagen and makes the skin elastic. The role of hyaluronic acid is also reflected.
2, water retention, water locking ability:
The most important function of hyaluronic acid is to keep and lock water. Oral hyaluronic acid can lock a large number of water molecules, which can not only keep the moisture inside the skin, but also capture the moisture in the external environment, keep the skin moist for a long time and enhance the skin's water retention ability.
Matters needing attention
Application mode
General hyaluronic acid stock solution care products provide high concentration of hyaluronic acid, which needs to be used with emulsion or essence. When the skin is dry, if hyaluronic acid is used alone, there is no direct moisturizing effect, and even because hyaluronic acid absorbs a lot of water from the skin, it will make the skin drier after use.
Therefore, the correct usage is: after washing your face in the morning and evening, you only need to apply the mixed hyaluronic acid product to your face, and then apply moisturizing cream to lock the moisture. This will be more effective.
In the early 1980s, hyaluronic acid can absorb a lot of water when applied to the skin, and it has the same high water holding capacity regardless of humidity, climate, environment and different skin types. Therefore, hyaluronic acid is an ideal mild moisturizing ingredient for extremely dry or severely dehydrated aging skin.
Injection attention
1) Precautions before injection:
Please keep your skin clean before treatment, and any cosmetics and skin care products need to be cleaned. It is recommended to use facial cleanser and astringent water to clean the skin. Wash and shrink pores with cold water. It is strongly recommended that patients should not take anti-inflammatory drugs (such as aspirin) for at least 3-4 days before treatment, because it may aggravate bleeding and swelling at the injection site.
2) Precautions after injection:
Please keep your face relaxed and don't make too many facial expressions after the injection treatment. Please avoid contact with high heat environment (such as sauna) for at least two weeks after treatment. ), because it may lead to the rapid decomposition of hyaluronic acid injected into the face, thus shortening the filling effect. Do not touch or massage the injection site.
3) Adverse reactions:
Inflammation of the skin, usually accompanied by tenderness, lasts for about a week, and the injection site is temporarily swollen. Please inform the injection doctor of the persistent adverse reaction immediately.
4) Contraindications:
Pregnant or lactating women,/kloc-patients under 0/8 years old, patients with local inflammation or infection, there is a great risk of swelling or bleeding when taking anticoagulant drugs. Such as taking aspirin and non-steroidal anti-inflammatory drugs. It is suggested that the doctor ask the beauty seeker whether he is allergic to hyaluronic acid and his past medical history before injection.
Witches and spies
Injection wrinkle removal is a medical beauty project, and life beauty salon has no injection qualification. However, some unscrupulous merchants are driven by interests and still set up injection programs without qualification. Moreover, in order to maximize profits, they pass off fake and inferior products as regular products, which brings great physical pain and mental stress to consumers. The CCTV TV platform appeals to everyone to treat injection beauty scientifically and teach you several simple and convenient ways to distinguish between true and false hyaluronic acid: First, look at the packaging. Many fake hyaluronic acid packages are very irregular, Italian and French, with various origins. In fact, there are only three kinds of hyaluronic acid approved by China: one is Evan, the other is Christine, and the other is Yimei. If consumers are not sure about the packaging label, there is another way, that is, landing in the country. Secondly, from the solvent state, hyaluronic acid has a small molecular weight and is water-based. It feels very delicate when rubbed, and it gradually becomes clean and disappears after several rubs. However, Ogilvy is obviously too large and jelly-like, and it is difficult to disappear quickly after solidification. Silica gel is an oil agent, which feels oily when rubbed. Finally, according to the size of the needle, the molecular weight of silicone oil is very large, so its needle is very thick. If the needle is too thin, silicone oil cannot be pushed out. Hyaluronic acid has a small molecular weight, so the needle used is also very small.
There are generally five kinds of micro-plastic injection filling materials that are easily confused with hyaluronic acid in the market, including Ogilvy (or IngelFallot), silicone oil, paraffin oil, cellulose and collagen. There is a simple way to identify Ogilvy-some "hyaluronic acid" containing Ogilvy are mostly sold in beauty salons, and some unqualified plastic surgeons bring their own injections to beauty salons. One person was injected in a beauty salon, and the temple was swollen after injection. This is Ogilvy's performance. The streets are full of fake hyaluronic acid and collagen. The criminals won the favor of some beauty seekers with low spending power at low prices and were cheated as a result. So it needs good identification. Steps of identification:
Step 1: Squeeze a drop of colloidal substance from the needle tube and put it on white paper. If there is oil penetration and halo diffusion, then this thing is definitely not hyaluronic acid, but definitely silicone oil or paraffin oil. This kind of material is prohibited by law.
Step 2: If water permeates and diffuses, it may be hyaluronic acid, Ogilvy (or IngelFallot), cellulose or collagen. At this time, further identification is needed! The identification method is: drop a drop of hyaluronic acid in the palm of your left hand, and then touch it repeatedly with your right hand. After a few minutes, after most of the water evaporates, you can see that there are sandy crystal particles in the remaining residue through finger touch or naked eye observation, and there is nothing else. Then this is cross-linked hyaluronic acid, which can basically be confirmed to be real hyaluronic acid and can be used.
The third identification method: put the extruded product on the flat glass and observe it the next day. As a result, after a night of water volatilization, the residual molded parts on the glass plate were analyzed. If these residues are all molded components, like "Smoothie" particles piled together, it must be hyaluronic acid. If it is a "hard shell-like opaque scab, it is usually Ogilvy; If it is a soft yellowish soft film, it is usually cellulose. If it is not volatile oil, it must be silica gel oil or paraffin oil. If there is nothing left in the end, it is probably non-crosslinked hyaluronic acid!
The fourth identification method: for the identification of whether the solid component is hyaluronic acid, the enzymatic hydrolysis experiment method can be used. The procedure is: put the solid particles into a container filled with hyaluronidase in a 45-degree constant temperature water bath box, and the solid particles can be degraded in about 2 hours. If it does not degrade, it is definitely not hyaluronic acid.