Hair dye category 1, plants, dyed with substances extracted from flower stems and leaves of plants.
2, metal, with metal raw materials, deposited on a dry surface, showing a dull metallic color.
3. Oxidant, which is the mainstream product in the market. Usually, this kind of hair dyeing products are made into two tubes, A tube mainly contains dye intermediates and B tube mainly contains oxidants. Both of them penetrate into the hair at the same time, and they are combined into macromolecules, which is difficult to wash off.
The commonly used dye intermediates are p-phenylenediamine and aminophenol, among which p-phenylenediamine is the most commonly used and is a kind of component that people are most concerned about the safety hazards of hair dyeing products at present. So some hair dyeing products will be specially marked on the product label to emphasize their safety? Does it contain p-phenylenediamine? In that case. In fact, only p-phenylenediamine is most commonly used, even if it does not contain p-phenylenediamine, it will also contain other coupling agents. Most of them are phenols, amines and other substances, which also have potential safety hazards. The above information is taken from the website of National Medical Products Administration.
Are pure plants safe? Not all plant ingredients are safe. Some of them are highly toxic. In particular, some Chinese herbal medicines are prohibited from being used in cosmetics by the state. So nature is definitely not equal to safety. There are many on the market? Plant hair dye? Most of them are traditional hair dyes under the guise of plant ingredients.
Products and supervision at the national level have gradually paid attention to the quality of hair dyes and have been conducting random inspections. Since the beginning of this year, the General Administration of Drug Administration has continuously strengthened market supervision, notified unqualified products and warned consumers.
In addition, relevant laws and regulations are also establishing a standardized market. At present, the toxicological technical specifications of hair dye products compiled by Beijing Institute for Drug Control are being established, including the evaluation of cosmetic genotoxicity, toxicology and human absorption of hair dye products and the safety factor of human use. I believe that in the near future, only the truly safe hair dyes will remain, and those that are invisible to toxicity will gradually withdraw from the market.
Remind friends not to just listen to advertisements when buying, but to carefully check the production license number, hygiene license number, approval number of special-purpose cosmetics and product implementation standard number of the products.
Dr. Yao, the pharmacist in charge and senior nutritionist, 10 years experience in medication guidance, nutrition consultation and health management. No medicine, no medicine, healthy life, no disease, no medicine!