Chinese Zen shampoo contains preservatives, but the concentration is within the scope stipulated by the Ministry of Health.
As long as you are not allergic to preservatives and the usage and dosage meet the relevant standards, you can use this product with confidence, but people with sensitive skin should use it with caution.
As for the redness, rash and itching of the skin after using this shampoo, it may be an allergy. Stop using it immediately and go to the hospital in time.
Extended data:
The main function of shampoo is to wash hair. In order to clean the grease and dust on the scalp and hair, there are many basic components of shampoo, such as active agent, silicone oil, organic acid and so on. Secondly, according to the different effects of shampoo, antibacterial agents, vitamins and preservatives will also be used.
Shampoo labels are generally valid for 3 years. However, in order to ensure that the shampoo will not deteriorate during the validity period, preservatives are also an essential ingredient.
According to the Hygienic Standard for Cosmetics (2007 Edition) issued by the Ministry of Health of China, the maximum allowable concentration of MIT alone in cosmetics is 0.01%(100 ppm); The maximum allowable concentration of the mixture of CMIT and MIT in cosmetics is 0.00 15%( 15ppm) (based on the mixture of CMIT and MIT 3: 1).
MIT and CMIT are common in shampoo industry. So far, no cases of skin allergy caused by preservatives have been found. Consumers need not worry too much, but people with sensitive skin should use them with caution.
People's Daily Online-Many shampoos are exposed to preservatives. Experts said that there is no need to worry too much.