Free radicals, including peroxides and hydroxyl radicals, have strong oxidation ability and will lead to skin and body aging. Experiments show that many Chinese herbal medicines have strong antioxidant effects. The extracts of Schisandra chinensis and Panax notoginseng can effectively inhibit lipid peroxidation and malondialdehyde production. Flavonoids in the extract can improve the biological activity of intracellular antioxidant enzymes, promote the synthesis of SOD and GSH- PX enzymes, and thus reduce lipid peroxidation.
In addition, Salvia miltiorrhiza contains active substances of salvianolic acid B and salvianolic acid C, which is an effective free radical scavenger and can also inhibit lipid peroxidation and platelet aggregation.
Step 3 repair collagen
Collagen is the most abundant protein in human body, accounting for 25% of the total in protein. It is an important part of dermis and a soluble protein, which mainly exists in skin, teeth, bones and tendons. With the increase of age, the ability of collagen to respond to physical stress will gradually decline, because hydroxyproline is the most important and stable amino acid in skin collagen, and its relative content can indirectly reflect the content of collagen in skin and the aging degree of dermis.
Studies have shown that many traditional Chinese herbal medicines can not only scavenge free radicals, but also repair collagen. Poria cocos extract can increase hydroxyproline content and inhibit cross-linking of collagen molecules; The formula of Polygonatum sibiricum can effectively increase the content of hydroxyproline and promote the proliferation of fibroblasts. Salvianolic acid B and salvianolic acid C contained in Salvia miltiorrhiza can increase SOD activity, hydroxyproline content and improve skin elasticity.
4. Immune regulation
The epidermis of the skin is a natural barrier against antigen invasion. The outermost layer of epidermis is stratum corneum, and the bottom layer is lipid bilayer. With the increase of age, the response of many immune functions will decline. When the immune system is not working properly, it will have a negative impact on collagen and elastin and delay wound healing.
Among Chinese herbal medicines, Schisandra chinensis extract can improve the activity of macrophages and enhance the role of SOD; The main active component of Panax notoginseng is saponin, which not only has strong free radical scavenging ability, but also can regulate skin immunity. In addition, Cuscuta chinensis extract can improve the immunity of the body by increasing the synthesis of interleukin -2.
5, promote skin microcirculation
Microcirculation of skin is helpful to provide nutrients for skin efficiently, support cell metabolism and regulate body temperature, which is very important for skin care and delaying skin aging.
Salvia miltiorrhiza extract can improve the blood circulation of skin capillaries; The extracts of Angelica sinensis and Bletilla striata are not only powerful antioxidants, but also can effectively improve blood circulation, thus delaying skin aging.
Medicinal cosmetic effect
First of all, medicinal cosmetics are not medicines, but skin care products. Its main function is to moisturize and protect the skin, and it can also play some auxiliary treatment roles for some skin diseases. Such as angelica beauty cream. Protein, amino acids and other nutrients in Angelica sinensis have the functions of whitening, thinning human skin, improving skin health and slowing down skin aging, and can achieve the beauty purpose of treating chloasma and freckles. There are also preparations made of Radix Angelicae Dahuricae and Rhizoma Bletillae, which are used to moisturize the skin and prevent rough and chapped skin.
However, when choosing medicinal beauty cosmetics, we must prescribe the right medicine. The incidence of allergic reactions in medicinal cosmetics is higher than that in general cosmetics, because some chemical drugs are allergic drugs. Therefore, if itchy skin and red pimples appear during use, you should stop using them immediately and ask a dermatologist to check and treat them in the hospital.
In addition, there are many kinds of skin bacteria on anyone's skin. Generally, these bacteria will not only have any adverse effects on the skin, but also make the skin form a normal physiological cycle and play a role in preventing other bacteria and molds from reproducing and invading. If medical cosmetics are commonly used, on the one hand, it will make pathogenic bacteria resistant, on the other hand, it will kill common bacteria on the skin while killing pathogenic bacteria, which will bring difficulties to the treatment of diseases and may also lead to new infections. Therefore, when you get well, you should stop using medicinal cosmetics and never use them for a long time.
The function of makeup
1, the function of skin care and beauty: make-up is to beautify the face. For example, using nutritious cosmetics can make the skin smooth and beautiful; Adjust skin color with foundation cream; Painting eyebrows can change the shape of eyebrows; Can make eyes soft and vivid; Blush can make your face bright and rosy.
2, the role of bodybuilding: makeup can not only make the face beautiful, but also protect the skin. For example, the use of sunscreen can protect the skin from the stimulation and damage of the sun; Massage cream will increase the elasticity of the skin and make the skin aging; Using toner can make facial pores shrink, smooth and delicate. It can be seen that health and beauty are dialectical unity.
3, the role of correcting defects: using makeup to make up or correct facial defects is one of the important roles of beauty. Make-up can make the nose of the collapsed beam stand out, with a long nose and a short nose. Can correct eye shape, small eyes are big, drooping eyes or drooping eyes are straight; Lipstick can make thin lips plump, thick lips thin and fuzzy lips clear.
side effect
Many women pursue fashion and pay attention to beauty when making up, but they often pay insufficient attention to the side effects of various cosmetics. In fact, cosmetics (including all kinds of shampoo, hair dye, skin cream, facial cleanser, nail polish, etc. ) are all chemical synthetic products, which not only have the function of protecting and beautifying the human body, but also emit various harmful substances, which have a great stimulating effect on human skin, and some can also cause "cosmetic dermatitis" such as skin edema, itching and macula.
The common cosmetics in life are mostly processed from various pigments, spices, preservatives, fungicides and other raw materials. Some special-purpose cosmetics also contain hair growth, hair dyeing, perming, breast enhancement, bodybuilding, deodorization, freckle removal, sun protection and other ingredients. Some people often have cheek swelling, running water, itching, dermatitis and other injuries or skin allergic reactions after using it, especially long-term use of hair dye, which not only easily causes contact dermatitis, but also causes other diseases. In cosmetics, the side effects of hair dyes cause the most allergic reactions. According to the investigation, a large number of hair dyes can easily lead to blood diseases and Hodgkin's disease.
So don't underestimate the side effects of cosmetics. On the one hand, we should use it as little as possible and not abuse it. On the other hand, we should choose carefully, and we must choose cosmetics with good quality and small side effects, which are suitable for our skin characteristics. People with a history of skin allergies should be especially careful. If you find that cosmetics have adverse reactions to Baekje skin, you should stop using them immediately.
Another source of side effects is deterioration caused by improper use. Usually, the main ingredients of cosmetics are oil and water, and the growth of microorganisms also needs water, so as long as it contains water, it will cause bacterial pollution and rancidity of cosmetics and care products. Glycerol, polyol and other moisturizing ingredients can provide carbon sources for microorganisms such as bacteria, while protein, amino acids and other main ingredients provide the best nitrogen sources for microorganisms. In the process of using cosmetics, the probability of direct contact between the product switch and fingers may be nearly 100 times or even more. It is very easy to accelerate the infection of microorganisms such as bacteria, so if the so-called preservatives or antibacterial agents are added improperly, it is easy to cause oxidation or pollution of cosmetics.
Yes, UV protection.
Excessive ultraviolet rays may cause skin burns at any time, causing terrible allergic symptoms such as erythema, blackening and peeling. Therefore, after applying basic skin care products, you must apply sunscreen. However, the ingredients of some sunscreen products are also one of the allergic factors. We should choose some physical sunscreen products with simple ingredients, and try to avoid direct application on the skin surface, which is relatively less irritating to the skin.
"Safe Seasonal Change" of Cosmetics
Allergy is due to lack of water and imbalance of oil and water. Skin care products should be adjusted in time during the season change. If skin care products can't replenish water and control oil in time, it is conceivable that your face can't eat. Once there is a problem, some people will stop using cosmetics, leading to skin malnutrition. Some people mistakenly use therapeutic skin care products, increasing the burden on the skin. Therefore, it is imperative to prepare some soft skin care products, such as cold film, sensitive cream and cell emulsion cream. Calm the subcutaneous nerves and reduce the occurrence of allergies.
For people with sensitive skin, if you want to use new cosmetics, you should do a skin test first. The method is to apply the cosmetics to the delicate skin on the inside of the wrist, leave it overnight or 2 13 days, and observe its reaction. If there are abnormal reactions, such as inflammation, redness and rash, they must avoid using cosmetics.
If you suspect that allergies are caused by skin care products you are using, you should stop using skin care products, try to use skin care products that you are used to before, or use skin care products specifically for allergic skin.
In oriental aesthetics, skin that is white and red as if blown to pieces is good, but it is often the most allergic skin, so you must be extremely careful when using cosmetics! [6]
Use of cosmetics
Selection skill
For people with sensitive skin, it is best not to choose cosmetics with too fragrant smell.
Because most skin care products with fragrant smell contain a variety of spices, the chemical composition is complex and it is easy to cause allergies. At the same time, it also contains alcohol and fruit acid, which has a stimulating effect on the skin and is undoubtedly worse for sensitive skin. Generally speaking, the allergic symptoms of sensitive skin vary from person to person, and the manifestations are also different. For example, some people will feel itchy if they are allergic to skin care lotion, while others will feel red, swollen, hot and prickly. So as long as the skin feels wrong when you use it for the first time, you should stop using this skin care product. Don't wait to see if it is a normal reaction.
In autumn, when changing skin care products, people with sensitive skin should not only consider the functions of moisturizing and repairing. I suggest you choose according to your skin characteristics. When purchasing, it is best to choose products marked "for sensitive skin" or "hypoallergenic" and "tested by dermatologists". Because autumn is a season prone to allergies, we should not only rely on skin care products to prevent skin allergies, but also control cold food, seafood and irritating substances in our diet, and maintain adequate sleep and appropriate physical exercise to increase our body's resistance and adaptability. If conditions permit, you can go to the hospital for allergen testing so as to take corresponding preventive measures.
Application mode
1, don't be allergic, just change a set of special skin care products for sensitive skin.
Because it is unsafe, the skin will become extremely delicate once it is allergic. If you change a series of cosmetics at this time, it will easily bring harm to your skin. So don't replace them all at once. You can start with the final products of skin care products, such as night cream or lotion, and gradually replace them all. You can also stop using irritating products, such as products containing alcohol or fruit acid.
2. When a lot of acne grows on the face, it is not that the skin is not washed clean.
If you think that you have so many pimples because your skin is not cleaned, it is easy to irritate your skin more. Acne may be a sensitive symptom of skin or an adult acne caused by stress. At this time, you should see a doctor, instead of blindly rubbing acne products, or exfoliating or deep cleaning, which will further stimulate the skin.
3. Don't rub the facial cleanser directly on your face.
Facial cleanser without foam will stick tightly to the skin surface and damage the sebum membrane. The correct way is to add water to knead and foam first, because the foaming detergent can play a cleaning role, and the foam is milder than the non-foaming emulsion. When you wash your face, you should wash the T-shaped part first, and then wash it off with warm water when you pat it on your cheek.
4, pay attention to regular cleaning powder puff.
You should know that dirty cosmetics can make your skin sensitive, so you must clean it, because the oil on your face will be sucked away by a puff when you make up. Grease-filled puff is in contact with air, which is the best breeding ground for bacteria. Using a dirty puff is not only unsightly, but also easy to make the skin fragile or acne. Wash the puff once a week, using special detergent or mild soap. After washing, press with a facial tissue to absorb water, and then dry in the shade. When choosing a cleaner for cosmetic tools, we must pay attention to choosing a professional cleaner for treatment. In daily life, the base makeup is mainly used on the base makeup, and the foundation is thicker than other makeup, so makeup tools are more likely to breed bacteria. Use special cleaning liquid for cosmetic brush, spray it on the brush head for daily use, and wipe it back and forth on the soft cloth until it is clean.
5, dry and itchy skin, do not use moisturizing cream.
Because thick and sticky skin care products are a burden to sensitive skin, don't use them when the skin feels dry and itchy. Too oily skin care products are easy to irritate sensitive skin and are not easy to absorb. The texture of "emulsion" is more suitable for sensitive skin than cream and essence.
6. Don't try to cover red and dry skin with powder.
Because it may be that your skin is inflamed, sensitive skin with inflammation should stop making up first. Ordinary cosmetic tools will aggravate the degree of skin inflammation. When brushing honey powder, you must choose pure wool and hand-painted. Even sensitive muscles can create clear bare muscles.
Use skills
Use a rouge brush to get a proper amount of blush, and adjust the concentration and makeup effect on the back of your hand. Draw a circle from the temple to the center of cheekbone and the center of ear.
Many women will use foundation and lipstick because they are direct and effective, with white skin and red lips. However, these two points are not enough unless you think you are better. Every part of the average person's face has something to beautify. There are three things that can be icing on the cake. That's concealer, rouge and eye shadow.