Essential oil is not so magical

Essential oil has not been known by the public for a long time in the Chinese market, but it has always been regarded as a miracle in the field of beauty and health care Essential oil massage is the signboard of all beauty and health care places Many essential oil products claim to have very good curative effect on endocrine, metabolism and other diseases What is essential oil? Does it really have the claimed benefits? Experts said in an interview with our reporter that the essential oil is mainly extracted from aromatic plants Its mild fragrance can stimulate the cerebral cortex to a certain extent and help the human body relieve tension However, there is still a lack of unified standards for the classification and use of essential oils in the domestic market, which does not deny that some enterprises may exaggerate their propaganda Extracted from aromatic plants, it is the raw material of cosmetics Yan Shixiang, Professor of School of chemistry and environmental engineering, Beijing University of technology and industry, and deputy director of Expert Committee of all China Federation of industry and Commerce cosmetic industry chamber of Commerce, said that essential oil is a raw material of cosmetics and a beauty product itself If there are no safety problems such as quality, purity and effective ingredients in essential oil itself, it can relieve mental tension and enhance immunity to human body Health care function, good for skin As for the composition of essential oil, Shen Yongjia, Professor of Fine Chemical Research Institute of East China University of science and technology, told reporters that essential oil contains volatile low molecular weight substances, among which the alcohol content is the most, including some lipid substances Mei Jiaqi, member of the cosmetic Expert Committee of all China Federation of industry and commerce, told reporters that essential oils can be extracted from odorous plants containing volatile components At present, there are thousands of aromatic plants around the world that can extract essential oil "In general, aromatic plants are the main ones that can extract essential oil As for the parts that plants extract essential oil, different plants also have differences Taking rose essential oil as an example, it is completely extracted from rose Rose essential oil cannot be extracted from leaves and other parts Although the essential oil is extracted from flowers, it can only be extracted from flowers in some specific periods Peppermint essential oil is thin Lotus leaves are extracted, but the most suitable extraction stage is the period when Mint grows vigorously, and the period when the content of essential oil is relatively high is a specific time of the day, so the time suitable for extracting essential oil is very limited, "a Phytologist who did not want to be named told reporters China's spices and fragrances and cosmetics industry association chairman Zhang Tiecheng said that the market is pure natural essential oils, synthetic oils are rare, and synthetic essential oils can also be used safely Shen Yongjia explained that "artificial synthesis" is not terrible In fact, many substances are synthetic now, such as dietary supplements, most of the drugs are also synthetic Generally, the synthetic essential oil can be used at ease However, if the manufacturer operates irregularly in the production process, the produced essential oil may have potential safety risks Yan Shixiang also said that in theory, the essential oil should be pure natural, but now many beauty salons use essential oil that is not natural extract, some of them mix the natural ingredients extracted from plants with the solvent to make it dissolve in the solvent, the solvent may be the synthetic oil, and the price of synthetic oil is relatively cheap Yan Shixiang explained that to judge whether the pure natural essential oil is absolutely safe or not depends on its composition Pure natural oil is not necessarily safer The key is that consumers should pay attention to the dosage of essential oil when using it Excessive use or high concentration of essential oil should be avoided Dissolving the natural extracted essential oil in solvent or synthetic oil is also a good choice However, there are beauty salons that use synthetic oil to make essential oil, and the content of natural essential oil is relatively low, so it is difficult to guarantee its claimed efficacy and safety Meijiaqi also said that pure natural essential oil is not necessarily safe and non-toxic in the use of human body, which depends on the variety and use method of essential oil In an interview, Zhang Tiecheng, the executive enterprise standard for the production process of essential oil, said that due to the short time for the development and utilization of essential oil and its widespread recognition and contact by the public, the formulation of relevant standards also lags behind to some extent In terms of classification and use of essential oil, there is no national standard, and there is a certain degree of confusion in the market Now, the manufacturers of essential oil generally implement their own enterprise standards in the production process About the current national standards and industry norms in the field of essential oil, Yan Shixiang introduced that from the perspective of beauty products, the Ministry of Health issued the "cosmetics hygiene norms" in 2007, which explained the prohibited components and restricted substances in cosmetics Mei Jiaqi said that at present, essential oils can be divided into food, flavoring, flavoring, daily flavoring, aromatic health care (inhalation, massage, spa, oral) The original Ministry of light industry has made national standards for about 10% of domestic essential oils Is essential oil of special use cosmetics with approval number classified as beauty product or health product? To this end, Zhang Tiecheng explained that the essential oil itself does have some special functions, such as relieving fatigue, refreshing, helping wound healing, etc., but it can't be avoided that some manufacturers do exaggerate the efficacy of the product in the propaganda language "From the perspective of volatile compounds, essential oil has the function of beauty and health care At present, cosmetics and health products are added to different degrees." Meijiaqi said In addition, at present, the classification of cosmetics includes essential oil If the essential oil product claims the functions of bodybuilding and freckle removing, it belongs to the cosmetics for special purposes According to the regulations on the health supervision of cosmetics in China, the cosmetics used for hair cultivation, hair dyeing, perm, hair removal, breast beauty, bodybuilding, deodorization, freckle removing and sunscreen belong to the cosmetics for special purposes Among them, the cosmetics for bodybuilding refer to the cosmetics for body building, and the cosmetics for freckle removing refer to the cosmetics for body building It refers to cosmetics used to reduce skin pigmentation According to the requirements of the general label of consumer instructions cosmetics (gb5296.3-1995), the approval number of special purpose cosmetics must be marked on the label, and the approval number of health license of imported cosmetics must be marked on the label There are two numbers of special-purpose cosmetics sold on the market, one is Weizhuang special character (special-purpose cosmetics approved by the former Ministry of Health) and the other is Guozhuang special character (special-purpose cosmetics approved by the current food and Drug Administration) Recently, the State Food and Drug Administration issued the technical requirements specification for cosmetics products, which is required to be implemented as of April 1, 2011 The number of special purpose cosmetics will be changed to the form of letter abbreviation, "Hz" means "cosmetics", "GT" means "domestic special purpose", "JT" means "import special purpose", "JF" means "import non special purpose", "year + 0000" It is the year and sequence number of the approval number (or filing number) of cosmetics In addition, it is also required that imported cosmetics for non special purpose shall be numbered as "Hz + JF + year + 0000" Hot Q & A: the first use of non allergic does not mean that the follow-up non allergic Q essential oil is claimed to be pure natural extraction, does it mean that it will not be allergic? Sun Liyun, deputy chief physician of Dermatology and Venereology Department of Beijing Hospital of traditional Chinese medicine: there are indeed people who are allergic to essential oil, and there are indeed cases of allergic to essential oil in clinical practice There are many kinds of essential oils As for whether the patients with allergies are allergic to a specific type of essential oil or to all essential oils, the current clinical research has not involved this aspect, but for the people who have ever had the allergic reaction to essential oil, it is suggested that they should not use it after that If the allergy to essential oil is delayed type allergy, antibody will be produced in the human body when it is used for the first time, but there will be no allergic reaction Only when it is used in the future, can a large amount of antibody be secreted to cause allergic reaction Therefore, the absence of allergic reaction in the initial use of essential oil is not the same as the absence of allergic reaction in the subsequent use Q in addition to the aromatherapy and massage of essential oil in beauty salon, many people are inclined to drip the essential oil into the air humidifier to spread the essential oil into the air Is this method advisable? Yan Shixiang: when using this method, you should ensure the sanitation of the air humidifier itself If you don't clean it in time, you will spread some harmful substances into the air After the essential oil is added into the air humidifier and spread into the air, and inhaled by the human body through the respiratory tract, some people will feel comfortable indeed, which can relieve the pressure and tension Linking supercritical fluid extraction is the most scientific "in general, there are three ways to extract essential oil", Shen Yongjia told reporters, the more traditional way is to use organic solvents for extraction, such as soaking in alkaline water, so that the essential oil in plants can be extracted after being separated Supercritical fluid extraction of carbon dioxide is a relatively advanced method for extracting essential oil When carbon dioxide is raised to a certain pressure, it becomes a fluid The high-pressure and high-density supercritical fluid is used as the solvent to extract the components needed from liquid or solid Then, the solvent and the extracted components are added into each other by means of temperature rise, pressure reduction or both and absorption Line separation This method has lower temperature and less damage to essential oil and plant components, and can also ensure the quality of the extracted essential oil.