What Are The Main Ingredients Of Cosmetics

1. Chinese name: salicylic acid (English name: salicylic acid)

Ingredient description: Also known as beta hydroxy acid (BHA, beta hydroxy acid), it has multiple functions and can solve various problems that cause acne. Dermatologists have used salicylic acid to exfoliate for decades, but it is also an anti-irritant. The structure of salicylic acid is very similar to aspirin (they are all salicylates, and the scientific name of aspirin is acetylsalicylic acid), so it also has anti-inflammatory effects. Salicylic acid can also kill bacteria, which is an important reason for using it to treat acne. In addition, studies have found that it can increase skin thickness, improve skin barrier function, and promote collagen synthesis. In addition, salicylic acid at a concentration of 8% to 12% is an effective exfoliating treatment. Salicylic acid at a concentration of 0.5% to 2% is more mild in nature, similar to fruit acid (see AHA), and can be used on the skin surface The role of exfoliation. In addition, salicylic acid can penetrate deep into the pores (fruit acid cannot), and remove the aging keratinocytes on the skin surface and pores, so it can be used to effectively fight acne. Lecture on Acne Knowledge >>

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2. Chinese name: Fruit acid (English name: AHA)

Ingredient description: Full name is alpha hydroxy acid. Fruit acid can be extracted from a variety of plants or milk, but 99% of fruit acid in cosmetics is synthetic. Low concentrations (less than 3%) of fruit acids can act as water retention agents. When the concentration is above 4% and the pH is between 3 and 4, fruit acid has an exfoliating effect. The most effective and most studied among fruit acids are glycolic acid and lactic acid. Malic acid, citric acid and tartaric acid are also effective, but in comparison, their properties are not very stable and are not suitable for use on the skin; and few studies have confirmed that they are beneficial to the skin. Fruit acid can irritate the mucous membrane and cause inflammation. Fruit acid is mainly used to improve skin aging caused by long-term sun exposure, and can also be used to remove excessive aging cutin. After using fruit acid, the live epidermal cells of the epidermis and the glucosaminoglycans of the dermis will increase . There are many research reports that the use of fruit acids (including glycolic acid and lactic acid) on the skin has anti-aging effects. Fruit acid can remove keratinocytes on the surface of the skin that have been damaged by sunlight, but this layer of keratinocytes has a certain sun protection effect, so the skin is more likely to be sunburned after using fruit acid. However, this problem does not occur with sunscreen products.

3. Chinese name: Retinol (English name: retinol)

Ingredient description: If the weakening of the deep skin connective tissue of the thigh is the main cause of cellulite (and excessive accumulation of fat), then improving the structure of the skin connective tissue can naturally improve cellulite, and now more and more studies support this Kind of opinion. Retinol (complete vitamin A) is one of the substances currently known to improve skin structure. Among all anti-cellulite products, products added with retinol should be the first choice. However, most related products contain very little retinol, and retinol is easily decomposed in the air, but the packaging of most products cannot ensure the stability of retinol. Also, a Johnson & Johnson study found that combining retinol, caffeine, and spirocotinine can improve cellulite. Of course, Johnson & Johnson ’s RoC and Neutrogena brands sell related products containing these three ingredients. product.

4. Chinese name: Avobenzone (English name: avobenzone)

Ingredient Description: A synthetic sunscreen ingredient (also known as Paso 1789, full name butyl methoxydibenzoylmethane), which can protect against UVA at all wavelengths.

5. Chinese name: titanium dioxide (English name: titanium dioxide)

Description of ingredients: Inert minerals used as thickeners, brighteners, lubricants and sunscreens in cosmetics. It protects the skin from UVA and UVB and is not irritating to the skin.

The role of different ingredients in cosmetics

Moisturizing essential-hyaluronic acid

Beauty King S has said that rice can't live with hyaluronic acid, and it is also a cosmetic ingredient favored by many stars. Hyaluronic acid, also known as hyaluronic acid, is itself a component of the human body. With age, the hyaluronic acid component in the body decreases, and the skin becomes like a shriveled orange peel. Hyaluronic acid has a special water-retaining effect and is the best moisturizing substance found in nature at present, known as the ideal natural moisturizing factor. It can improve skin nutrient metabolism, make skin soft, smooth, wrinkle-free, increase elasticity, prevent aging, and is a good transdermal absorption accelerator while moisturizing.

Whitening essential-L-vitamin C

Most whitening products contain lead and mercury, but the skin that has been "bleached" under this chemical for a long time has not actually turned white. Once it is stopped, it will be darker than before. L-vitamin C has no side effects. It can promote collagen proliferation, repair the damage of ultraviolet rays to the skin, and lighten the spots.

Antioxidant essential-Coenzyme Q10

Coenzyme Q10 is a fat-soluble enzyme in the human body, its greatest function is antioxidant. Coenzyme Q10 can penetrate into cells, strengthen cell metabolism, and can inhibit the process of lipid peroxidation in humans. Coenzyme Q10 is very mild in nature and has no irritation or photosensitivity. It can be used safely in the morning and evening.

Essential for exfoliating-fruit acid

Fruit acid can ablate the link between good cells and necrotic cells, promote the shedding of the stratum corneum, and also stimulate the differentiation and regeneration of deep cells, accelerate the metabolism of the skin, the skin is of course tender and tender. At the same time, fruit acid can also be very good against free radicals, and also has the effect of anti-oxidation and cell protection.

Anti-wrinkle essential-hexapeptide

Hexapeptide is a botulinum component, which has all the functions of botulinum toxin but does not contain any toxicity. The main component is a biochemical product composed of six amino acids arranged and combined. It effectively soothes and inhibits the forehead and wrinkles. The contraction and activity of the wrinkles and surrounding muscles help the muscles relax and restore the skin's elastic tissue to smooth and smooth lines. Of course, it is an essential skin care product for 25-year-old women!

Which ingredients in cosmetics are harmful

1. Ultraviolet absorber

Sunscreen skin care products usually contain sunscreen. At present, it is mainly composed of chemically synthesized ultraviolet absorbers, which can absorb ultraviolet rays. However, because the UV absorber itself is a photosensitive substance, improper use will cause skin irritation and cause photosensitivity reactions. Especially prone to problems such as rough skin and irritated eyes. Therefore, China's cosmetics hygiene regulations have stipulated the use of ultraviolet absorbers in cosmetic components, the maximum allowable concentration in cosmetics, the use conditions and precautions that must be marked on labels.

2. Preservative

To prevent pollution, skin care products and cosmetics contain preservatives. Preservatives are also an unsafe ingredient and can easily cause inflammation such as skin allergies. At present, only a few products on the market do not contain preservatives, and such products have high packaging requirements. MMs with skin allergies must pay attention to whether they contain preservatives when buying cosmetics.

3. Alcohol

The ingredients of ordinary cosmetics generally contain alcohol. In fact, it is very harmful to our skin.

(1) Alcohol has super penetrating power, can penetrate into the cell body, make its protein coagulation and denaturation to dehydrate the cell, and the skin will gradually lose its elasticity.

(2) Alcohol has high volatility. It takes away the heat of the skin as well as the moisture of the skin, which reduces the skin's natural moisturizing ability and immunity, resulting in dry, rough skin, strong sebum secretion, and large pores. The skin will age faster.

(3) After the cosmetics containing alcohol are applied to the skin, there will be a photosensitivity reaction, resulting in aggravation of skin pigments and spots that are difficult to reverse.

(4) Due to the adaptability of the cells, after long-term use of cosmetics containing alcohol, the skin cells will become dependent on alcohol and reject cosmetics that do not contain alcohol.

(5) Alcohol can paralyze the cells, making it difficult for the cells to distinguish between good and bad nutrients, so that they can absorb some harmful substances to the skin, such as lead, mercury and other harmful substances, so that the skin is no longer healthy. Therefore, remind everyone that it is best not to buy cosmetics containing alcohol.

4. Mineral oil

Skin care products containing mineral oil have a good moisturizing effect, but have a heavy burden on the skin. There are many products marked with cleansing oil on the market. Among them, mineral oil is the most added type at present, and the price will vary greatly due to purity. It is worth reminding that if the purity is high, the safety of the product is also high; if The purity is too low, which not only affects the cleaning effect, but even causes clogged pores.

5. Hormones

Regular use of cosmetics with hormones can lead to "hormonal cosmetic syndrome" and even severe skin reactions. After use, patients with allergic skin symptoms will relieve their initial symptoms and their skin will become finer. However, after a period of time, the allergic symptoms will recur. Long-term use of hormone-containing cosmetics can cause capillary dilation, atrophy, and even hairy, dermatitis and other symptoms. At the same time, the external use of hormones may also cause changes in hormone levels in the body, causing endocrine disorders and other symptoms. "Quick-acting" has become a trick for many skin care products to attract consumers, but quick-acting skin care products may often contain hormones. Therefore, if a certain skin care product is effective soon, it must be vigilant.

6. Hydroquinone

Improper use of hydroquinone can cause cytotoxic reactions, which is itself a toxic substance, which will cause scary scars if accumulated. It may also cause fatal damage to internal organs of the human body, especially the kidneys and liver. Therefore, in some European countries, only 2% hydroquinone is allowed in certain medical products.

7. Heavy metals such as mercury, lead and arsenic

The real culprits of poisoning caused by cosmetics are mercury, lead, arsenic and other heavy metals. One of the most important reasons is the excessive standards of heavy metals. The harm of excessive mercury to human body:

(1) It will cause depigmentation;

(2) Skin irritation;

(3) Skin damage caused;

(4) It causes accumulation in the body, which causes various adverse reactions of the body. The main thing is the central nervous system, such as insomnia and fatigue, poor memory, especially the changes in mood are very obvious.

In addition to the effects of lead on the human body, it also causes neurasthenia. In addition, after absorption, the digestive system will also have some symptoms, such as constipation, loss of appetite, and severe liver function may be damaged. Arsenic is also very toxic. If you absorb the poison after use, arsenic will also cause changes in the nervous system, as well as some peripheral nerve changes, such as hand numbness, foot numbness, limb weakness, pain and other symptoms. There may be blackening and pigmentation.

8. Spices

Many people like the fragrance of cosmetics. In fact, spices are also the culprit of skin damage, which may cause health problems such as light sensitivity and contact dermatitis. The "chromium" and "neodymium" contained in the spices are prohibited elements. If the patients with weak skin resistance use it, the skin will have irritation and burning sensation, or the skin is sensitive and red, and it will cause dermatitis in severe cases. Chromium is an allergen of the skin and can cause allergic dermatitis or eczema. It has a long course and does not heal for a long time. Neodymium is very irritating to the eyes and mucous membranes and moderately irritating to the skin. Inhalation can also cause pulmonary embolism and liver damage.

9. Pigment

Like spices, it contains prohibited elements such as "chromium" and "neodymium".

10. Hydrogen peroxide

Beauty salons usually use hydrogen peroxide to whiten. But if the concentration is high, it will harm the skin, because high concentration of hydrogen peroxide will have a strong oxidizing property. The scientific name of hydrogen peroxide is "hydrogen peroxide", because it can release an atomic oxygen, so it has a bactericidal effect. Especially deep wounds can kill some anaerobic bacteria such as Tetanus. Generally use 5-10% hydrogen peroxide for skin disinfection. Above this concentration, for example, 30% hydrogen peroxide will have a corrosive effect on the skin.