1, about six months to one year.
In medicine, injection cosmetology refers to "micro-carving the face through biological products or derivatives of biological products to change the fine structure." Chen Guangyu said that there are three main types of biological products or derivatives of biological products: botulinum toxin, hyaluronic acid and collagen. Among them, botulinum toxin can temporarily paralyze nerves and is suitable for dynamic wrinkles, such as crow's feet at the corner of the eye, Sichuan-style lines on the forehead, and head-lifting lines. Its side effect is that the muscles that people are worried about will become stiff, but how long the stiffness lasts depends on the injection amount, injection point, injection technique and whether the medicine used is regular.
If the wrinkles are already deep, not only botulinum toxin, but also hyaluronic acid and collagen, which play a filling role, should be used. In addition to filling wrinkles, the latter two have certain facial shaping functions, such as filling nasolabial groove, rhinoplasty, chin augmentation and filling various facial depressions. The main difference between them is that hyaluronic acid can replenish water, while collagen mainly increases the elasticity of skin. If the face is dry, wrinkled or sunken, it is suitable for injection of hyaluronic acid; If the skin is not dry, but there are many wrinkles or depressions, it is suitable for collagen injection.
Injection beauty is not a needle to stay young forever. Chen Guangyu explained that botulinum toxin, hyaluronic acid and collagen are maintained for about six months to one year after injection. After this period, I will go back to the hospital for makeup. Botulinum toxin will produce antibodies when it is finished. There are more and more antibodies in the body, and the fighting time will be shortened. In the end, it may take three or four months to make up; Hyaluronic acid and collagen do not have this problem, and the patch does not mean dependence. Injection beauty should choose regular hospitals and products. Some online shopping products are likely to contain ingredients prohibited by the state, which are not easy to absorb and even disfigure.
2. Contraindications of skin care during pregnancy
Vitamin A acid and its derivatives, vitamin A alcohol, vitamin A aldehyde, etc.
These components enter the body, especially in the first three months of the critical period of fetal development, which may lead to developmental abnormalities.
Essential oil products
Many people usually love to use essential oil or massage frequently, so they should try to avoid it during pregnancy. Many essential oils have small molecular weight and strong permeability, which may be harmful to the fetus.
In fact, most skin care products are safe. If you don't have skin care products with these ingredients, you can continue to use them.
During pregnancy, women's facial skin and blood vessels are richer than usual, which is easy to expand and congestion, and their resistance to the outside world is reduced, making them more sensitive and prone to redness and burning. Expectant mothers with this kind of skin should use less exfoliating products, use high-performance moisturizing products for daily skin care, and do a good job of sun protection every day to avoid direct stimulation of ultraviolet rays on the skin.
Some people's skin is elastic and there are no stretch marks, but for most people, stretch marks are an unavoidable fact, but you can keep elasticity by rubbing massage oil or moisturizer rich in vitamin E on your stomach, eating healthy food and doing moderate exercise to minimize the possibility of stretch marks.
In addition, problems in any link may lead to the outbreak of acne. Try to avoid high-calorie foods such as fried food, spicy food, chocolate and cola during pregnancy, and avoid exposure to the sun.