Wet tissues are wet paper towels used to wipe the skin. Wet tissue on the market can be roughly divided into two categories: one itself has been disinfected, but can not disinfect other items, which contains skin care ingredients, and can only do skin wetting maintenance. The other not only itself is disinfected, but also can play the role of disinfection moisture wipes for other items, which can be used for the disinfection or sterilization of skin abrasions, scratches, etc., When choosing wet tissue, be sure to see the function positioning.
In terms of the word weak acid, we believe many people are familiar with it. There are many businesses use the word as a selling point in the face wash, shampoo and other washing products or skin care products to attract consumers; Now, in some baby moisture wipes and diaper products, we also often see "weak acid" in the propaganda language. What exactly is the weak acid? Are weakly acidic products better than others?
The weak acid in moisture wipe refers to the weak acid sebum on the surface of human skin of pH4.5 to 6.0, which can play a role in protecting the skin from alkaline bacteria and bacterial invasion or external stimulation. Human skin is maintained in a weak acid state, which helps to prevent the invasion of some bacteria, but if these balance is broken, it will weaken the skin barrier, and cause the growth of bacteria, causing inflammation.
Moisture wipes sometimes use various additives in the production process. After the processing of these acid, alkali and salt chemicals, the moisture wipes are inevitably acidic or alkaline. If the pH value of the moisture wipes is too high or too low, it may cause harm to human health. If the skin of the human body is generally weak acid, it is conducive to preventing the invasion of some bacteria. If the moisture wipes containing too strong alkaline are used, it will lead to the destruction of the natural barrier of the skin surface. Some bacteria grow and reproduce under alkaline conditions, stimulate the skin, cause discomfort to the human body, and even cause disease.
If the liquid in the wet tissues is weakly acidic, it is closer to the pH of human skin and will be gentler and less irritating during use. According to the national standard, the pH value of moisture wipes for human body should be between 3.5 and 8.5. For good reason, weak acid moisture wipes do work better on the human body.
For babies whose skin thickness is only 1/3 of that of adults, the skin barrier function is weak and the ability to regulate acid-base balance is poor. Urine, feces and bacteria all make the baby's skin defenseless. The baby's skin, like other body organs and tissues, has not been fully developed in structure and does not have many functions of adult skin. It will take at least 3 years to mature. During this period, the water content of the baby's skin, sebum secretion, skin pH value and so on have been changing. Therefore, the weak acid baby moisture wipes can protect the baby's delicate skin more gently and effectively.