Hand sanitizers are more and more popular because they are mild and easy to use. But you know what? Unreasonable use of hand sanitizer will also bring harm to health, so we should know how to buy hand sanitizer. Let's learn about it together!
How to choose hand sanitizer?
Hand sanitizers on the market can be divided into three categories according to their different functions
The first category is the common hand sanitizer, namely "liquid soap", which is mainly composed of detergent. The use method is similar to that of soap, which only plays the role of cleaning and decontamination.
The second category is antibacterial hand sanitizer, which belongs to disinfection products. It is based on the ordinary hand sanitizer by adding some antibacterial or bactericidal ingredients, which can kill the bacteria that cannot be removed by ordinary hand washing and skin wrinkles, so as to ensure the effect of hand washing.
The third category is water-free hand sanitizer, mainly composed of alcohol and other disinfectants and skin care ingredients, also belongs to disinfection products.
Two points should be paid attention to when choosing hand sanitizer
1. Pay attention to the contents, that is, the hand sanitizer itself, and smell whether there is odor or pungent smell. If so, it may be that the shelf life has expired or the prohibited raw materials have been used. It is better not to purchase and use them.
2. Observe whether there is stratification or oil-water separation phenomenon. If so, it indicates that the emulsification process is not well controlled in the production process, which will affect the washing effect.
Will you wash free hand sanitizer?
At present, wash free hand sanitizer is more and more popular among us. Many people like to take a bottle with them when they travel.
1. Hand washing without water: it is convenient to use and carry; it can clean hands anytime and anywhere without washing;
2. Continuous effect: the effect lasts for a long time, lasting for 4-5 hours, and the longest effect can reach 6 hours;
3. Gentle skin care: it can control the oxidative stress level of hands, prevent skin damage and protect hands, and can moisturize and protect hand skin.
4. Virus killing and sterilization: according to the test of Chinese Academy of Military Medical Sciences and Hubei Provincial Center for Disease Control and prevention, the virus inactivation rate reached 99.99%.
There are two kinds of basic ingredients in the hand sanitizer
1. A substance that can disinfect. This refers to the killing effect of pathogenic biological factors, including fungi and viruses.
2. A substance with skin care function. The simplest and most representative formula of wash free hand sanitizer is 75% ethanol and 2% medical glycerin. Ethanol can disinfect, glycerin moisturizing skin care, can be self-made.
3. The germicidal rate of no wash hand sanitizer reaches 99.99%, which is of great help to health.
4. However, there are inevitably chemical residues in the long-term use, so it is better to use the traditional method of washing with soap and water.
Hand Sanitizer
Anhydrous hand sanitizer is a kind of modern chemical mixture;
Main ingredients: mineral oil, liquid wax, oleic acid soap, glycerin, pigment and other chemical components;
Main functions: it can sterilize, disinfect and decontaminate. It has no peculiar smell, neutral and does not hurt the skin after use. The anhydrous hand sanitizer of individual manufacturers has nursing effect on skin.
Usage: pour a little of the liquid on your hand and rub your hands together. After the product is even, wipe it with a paper towel or towel (ethanol can wait for it to evaporate automatically).
Application: all kinds of hospital, chemical plant, coal mine, etc;
The main components of anhydrous hand sanitizer are biguanide surfactant and natural herb extract. It has the effect of anti bacteria (inhibition) and fungi are also effective. It has no toxic and side effects on human body, no irritation to skin and mucous membrane, high effective surface active antibacterial agent and neutral antistatic agent.
Main components of hand sanitizer
1. Decontamination components
Decontamination ingredients are designed to provide decontamination and rich foam, mainly anionic surfactants and a small amount of non-ionic and zwitterionic surfactants. Anionic surfactants include soap, sodium dodecyl sulfate, q-olefin sulfonate, fatty alcohol polyoxyethylene ether sulfate, q-sulfonyl fatty acid ester, lauroyl sarcosinate and monosulfonamide sulfosuccinate. Soap and sodium dodecyl sulfate are the first surfactants used in hand sanitizers. Due to their respective defects, such as strong degreasing property, high pH value of soap and low hard water resistance, calcium soap has been rarely used.
Nonionic surfactants are generally less used in hand sanitizers. A small amount of additives can enhance detergency and foam stability, such as coconut fatty acid two ethanol amide. The addition of alkyl polyglycosides can reduce the skin irritation of surfactants. A small amount of zwitterionic addition is beneficial to foaming and foaming lasting, beet and amine oxide.
2. Nursing ingredients
When washing hands, due to the degreasing effect of surfactants, the skin will feel dry after hand washing. Therefore, it is necessary to add some fat rich agents and emollients to supplement skin oil to prevent dry and rough skin, such as various natural and synthetic lanolin, glycerin, propylene glycol, sorbitol, lactate and sodium pyrrolidone carboxylate.
3. Antibacterial components
The hands are always in contact with the outside world, and the hands will be contaminated with various bacteria and even fungi. Therefore, the bactericidal components should be broad-spectrum, such as 3, In order to improve the bactericidal efficiency of fungicides, such as 4,4 '- trichloro-2'hydroxyphenyl ether, chloroxylenol, Chinese herbal extracts, etc., additives with increasing permeability are needed to promote the penetration of bactericidal components into the bacterial wall, quickly sterilize and enhance the sterilization efficiency.
4. Sensory adjustment components
In order to make the consumers love and accept the hand washing liquid, give the hand washing liquid special effect and appearance, add dye or pearlescent agent; adjust the suitable viscosity for the convenience of adding the thickener; add a certain amount of essence to the feeling of pleasant and pleasant feeling during the process of washing hands.
5. Natural ingredients
With the improvement of people's awareness of safety and environmental protection, green natural products are more advocated. Therefore, adding natural raw materials into the formula of hand sanitizer is the choice of many hand sanitizer brands. These natural additives can reduce irritation, moisturize skin, resist bacteria and inhibit inflammation It can also provide natural aroma and color, such as various plants, Chinese herbal medicine, fruit extract, aloe, ginkgo, chrysanthemum, ginseng, Panax notoginseng, licorice, peony bark, tea fruit, sterilization and lemon, etc.
What are the hazards of using expired hand sanitizers?
The bacteria such as Pseudomonas aeruginosa breeding in expired hand sanitizer will cause great harm to human body.
It is understood that because Pseudomonas aeruginosa is the pathogenic bacteria, it can cause wound infection, pneumonia and other diseases. It has strong pathogenicity to human body, and severe cases can cause septicemia; Staphylococcus aureus is also a very strong pathogenic bacteria, which can cause purulent infection and sepsis. Mr. Li of the National Center for quality supervision and inspection of washing products reminds consumers that when using hand sanitizers in public places, first of all, they should pay attention to whether the hand sanitizer has smelly, pungent and other odor.
If so, it may be that the product has exceeded the shelf life or has used prohibited raw materials. This kind of hand sanitizer is best not to be used. Secondly, observe whether the hand sanitizer has stratification or oil-water separation phenomenon. If so, it indicates that the production enterprise has not controlled the emulsification process in the product production process, which will affect the washing effect, and it is better not to use it.
