Question 1: How to distinguish the authenticity of essential oil? There is no saying about the authenticity of essential oil. The main difference between essential oils sold in the market lies in their purity. At present, there are so-called pure and highly imported essential oils on the market, or they are imported. In fact, many foreign brands enter the China market, and 80% of them are diluted with pure essential oils and sold in China. So the main difference is the purity of essential oil. I'll introduce you to six ways to visually identify the purity of essential oil. (1) Look at the wall. I think everyone who has drunk red wine knows that beautiful red wine is good, but this must not happen in pure essential oils! We can spin the bottle back and forth. If it is stained with grease, it means it is not pure enough! Generally, in pure essential oils, after you spin back and forth, you will sink like water and never hang on the wall.

⑵ Look at the sediment. When you get an essential oil, look at the bottom of the next bottle for sediment! Essential oils are extracted from plants by cold pressing (of course, not all of them are extracted in this way, I take this as an example). If a good essential oil rarely exists, there will be extraction residue, unlike red wine, which will precipitate over time, so it is worth remembering!

(3) Look at the bubble, that is, the bubble generated after pure essential oils shakes will soon disappear; Generally, it will not disappear within 1-2 minutes. Then admit it. You've been cheated.

(4) look at the color. Many claims on the Internet say that pure essential oils is transparent. Actually, this statement is not comprehensive enough. There are so many kinds of plants in the world of essential oil, each of which is natural and beautiful. How can you obliterate their beauty? Give 1 example!

For example, chamomile, because there is a very precious component "azurol hydrocarbon" in chamomile, it has different quality and smell according to different places of origin. Roman yam is fragrant and dark green. The other is Gan Yang in Germany, also known as Gan Lan in Germany, because its color is dark blue, and it has a strong medicinal taste.

The following is a list of some commonly used essential oils: jasmine essential oil (reddish brown or rust red), rose essential oil (yellow or reddish brown), myrrh essential oil (crimson or reddish brown), marjoram essential oil (dark yellow to brown), sweet orange essential oil (light yellow or golden yellow), citronella essential oil (yellow to dark yellow), bergamot essential oil (light yellow or emerald green) and lemon essential oil (yellow-green).

5. Look at the packaging: Essential oils are usually stored in dark sealed small glass bottles, with special strong acid and alkali resistant bottle caps to prevent sunlight and oxygen from infiltrating, so that essential oils do not volatilize and deteriorate. In a good preservation environment (room temperature), it can generally be preserved for two years, and the essential oil with good quality can be preserved for 4-5 years. Dark blue and dark green glass bottles are more expensive, because the storage life of essential oils is longer than that of dark brown and amber. Citrus essential oil can also be preserved for 65,438+0-2 years, and the products packed in bottles with drippers are generally diluted essential oil with 3%-65,438+00%, not pure essential oils. The label of pure plant essential oil should indicate the purity, and provide complete information such as shelf life and usage.

[6] Look at the price: Plant essential oil is mainly distilled. Generally, 65,438+000 kilograms of flowers and plants can extract 2-3 kilograms of essential oil, so the price of real essential oil will not be too cheap. The market reference price is: If the price of some self-proclaimed imported essential oils is higher than 20-50 yuan, its authenticity is self-evident.

Question 2: How to identify the quality of essential oil? In fact, to understand whether the above viewpoint is correct (including the identification method mentioned later), we need to know the components of unilateral essential oil first: the first major category of essential oil components is terpenoids related to isoprene or isopentene; The second category of essential oil components is single-chain hydrocarbons and their oxygen-containing derivatives: alcohols, aldehydes, ketones, acids, ethers and esters; The third kind of essential oil components include some important flavoring and flavoring substances, which are all produced by benzene, especially n-propylbenzene; The fourth kind of essential oil components are other miscellaneous; Here we see that essential oils contain many different compounds, belonging to different chemical varieties, but we generally divide them into four categories for research, namely: chain hydrocarbons, benzene derivatives, terpenoids and others; Therefore, it can be said that each essential oil is composed of hundreds of monomer substances, and the composition is very complicated.

Secondly, we should understand that unilateral essential oil is volatile, whether it is high-grade oil or low-grade oil, but the degree of volatilization is different.

Due to the above two points, once the unilateral essential oil is opened, the sealing performance will be poor, and the volatile essential oil will easily contact the air in the bottle mouth. At the same time, when pouring the essential oil, the essential oil will remain in a part of the bottle mouth. Many terpenoids in the composition are easily oxidized into lipids when exposed to the air, leaving traces on the bottle mouth, but it does not mean that the unilateral essential oil is doped with other bad essential oils, which only shows that there are still some problems in its packaging.

. However, if the unilateral essential oil not only leaves traces on the bottle mouth, but also emits a very unpleasant oil smell, it is mostly mixed with base oil.

2 \ Some people say that essential oil should be put in the refrigerator to see if it condenses.

This is also unreasonable. Similarly, when it comes to the composition of essential oil, the specific composition of each essential oil is different. Most essential oils don't condense in the refrigerator, but some essential oils do. For example, both roses and jasmine contain rose wax and jasmine wax, which are easy to condense at low temperature. Of course, it cannot be ignored that the better the quality, the lower the wax content. Jojoba oil is also included in the base oil. In fact, it is different from other seed oils. Its composition is not oil, but liquid wax, so it is easy to condense at low temperature. However, the single essential oil based on jojoba oil will condense in the refrigerator, so it can't be used to judge the quality of essential oil.

3 \ Most beauticians advise customers to identify the quality of essential oil with paper. It is good to leave no trace on the paper after volatilization, but it is not good to leave oil stains.

It should be said that this identification method is reasonable, because pure unilateral essential oil can basically volatilize (just for a long time). For producers, it is helpful to choose original essential oil, but as mentioned in the second article above, this method can't explain the problem for most essential oils on the market at present.

Because these single essential oils are diluted single essential oils, and the volatility of base oils is generally poor. Most base oils are oils. Although Jojoba oil is not oil, the volatility of liquid wax is also poor. In this case, this identification method is not helpful to customers, because it usually leaves oil stains more or less.

4 \ When I talked with beauticians of some essential oil brands in the factory, I also heard a saying that water (or alcohol) is used for identification, that is, a drop of essential oil is dropped into water (alcohol) to see how it dissolves to determine the quality of essential oil.

Here, the first thing we need to know is that according to the basic components of essential oils, we can clearly say that most essential oils are insoluble in water, but can be basically miscible with pure alcohol (generally 99% pure alcohol). However, for some essential oils containing terpenoids (easy to resin), alcohol may also precipitate terpenoids. The specific situation may depend on the temperature and alcohol purity. Therefore, for water identification, because not only essential oil is not easy to dissolve in water, but also many oil components are insoluble in water, so I don't think this can be used as a standard to identify the quality of essential oil. Of course, it can be recognized in some specific situations.

Haha, actually, having said so much, I don't have a simple method that can be applied everywhere. As far as I know, the best way to identify essential oils at present is to use the nose (it is another matter to use instruments to detect them). Because the taste of essential oils with different purities is different, for example, rose essential oil is generally mellow with a little sweetness in the middle, but the taste with low purity will be much worse. & gt

Question 3: How to identify the quality of essential oil? How to identify the quality of essential oil? The main method to identify essential oil is scientific analysis, and the chromatogram of essential oil is the most scientific and convenient method to identify the quality of essential oil. The quality of essential oil is judged by "essential oil chromatogram" (GC-MS chromatographic analysis). In the analysis process, the gas chromatograph first separates the sample to determine the content of the sample; Then the mass and intensity of the separated ions were determined by mass spectrometry to characterize the component. The result of chromatographic analysis is just like the DNA data of essential oil-through these data, the content of each component of essential oil can be clearly obtained, and the quality of essential oil can be scientifically and effectively judged. Well-known essential oil brands of Xiangdan International, such as Beiwu Ingredients and Cobashi, have GC-MS marks on their product packages, indicating that they have passed GC-MS inspection, and each drop of essential oil has a clear pedigree and pure quality. Only in this way can we distinguish the quality of essential oil and distinguish the quality of essential oil.

Question 4: How to distinguish the purity and quality of essential oil? You think your statement is completely correct. Inferior goods are really what you said

But identifying essential oils

These methods must be used because

1 You said you didn't look at the place of origin, so I asked you to buy a bottle of essential oil. Who will show you around the essential oil factory?

I'm afraid you have no time to wait for plants to grow and watch others process them. Then you can buy it with confidence.

The so-called showing you the origin of essential oil is not to scare you into making a stunt with a certain country.

Please apply your knowledge of geography and climate. Simply put.

If the climate, humidity, latitude and longitude in this area are not suitable for the growth of this plant, and this bottle of essential oil comes from there, will you buy it? What to look at without looking at the place of origin? Is China rich in Komodo dragons?

Do you see the packaging? Let's not talk about it. The bottles of essential oil are all dark, because oil is sensitive. Dark bottles protect essential oils from ultraviolet rays. The lid of the bottle is almost sealed. In order to reduce the chance of oxidation resistance and essential oil deterioration, good horses are equipped with saddles. What is the poor quality in a gold-plated bottle? Is there a problem with the manufacturer?

I have never seen a merchant put essential oil in a transparent bottle or pour it out for you on the spot.

Let you identify it. You can let the merchants do it. Also a cow.

So ... you want to pass color recognition, don't say you want to, and you can't.

The ultimate goal of essential oil is to identify the taste.

It's not that the taste can't be identified, but that you know the key points of identification.

The natural fragrance of pure plant essential oils and things like chemically synthesized perfumes, spices or essences can be smelled at once (unless there is something wrong with the nose).

What is the essence? It has no aftertaste, and the aftertaste is stiff, and you can smell it right away.

A good plant essential oil smells very complicated, only one fragrance is biased, and it is not single. You can't tell what it is, profound, harmonious and fragrant.

If you say that fragrance can't identify a thing, what should sommeliers and perfumers do?

The texture and permeability of essential oil are the key to identify essential oil.

On the other hand, I ask you why a bottle of essential oil is not a good one, because it has good texture and permeability.

Why can't this be a way to identify essential oils?

Good essential oil, the stronger the permeability. That is, it will be absorbed immediately after being applied to the skin. There is no excess oil residue, and the bad ones can't be absorbed as greasy as oil. By the way, have you ever used good essential oil? I don't blame you for not having to. )

The harmony between essential oil and essential oil can also be seen. Good and bad essential oils are put together miserably, and they are not blended immediately, and some are not even blended well.

Bad essential oil has no technology and cost to imitate this characteristic. Haven't you seen a fake mobile phone?

Why do shanzhai sell shanzhai prices? Don't you understand? All the accessories are good. Why should I sell it to you cheaply? You have a big face?

If the texture is impeccable, why is it that people are not good essential oils? Are you the cosmetics bureau?

You didn't mention this, and I'm afraid you don't understand either.

The weight of essential oil is also important.

Grass essential oil molecules are the lightest, while resin essential oil molecules (such as verbena lavender) are the heaviest (such as horse chestnut), which can completely sink to the bottom of a glass of water and is insoluble in water. If the weight is opposite or different, it is definitely not a good essential oil.

This is also the reason why essential oil sells ml instead of G. Which is heavier, a catty of cotton or a catty of iron? Ha ~

Essential oils can be thousands of good ones, dozens of bad ones, or even several yuan.

It requires your long-term personal experience and sensitivity to taste. Base oil and technology are also the key to make essential oil work.

A piece of pure gold will become jewelry after the designer's design and the master's beating, understand?

Please don't ask such funny questions in the future.

Is this question to show that you are knowledgeable? Deep question? Others can't answer and don't understand?

If you have the ability and research, you can help others solve their problems. You don't have to abstain from sex here.

I didn't mean to scold you either, but I tell you, people know more than you do.

There is no need to scare anyone with such questions ~...& gt& gt

Question 5: How to judge the quality of essential oil? 1, depending on the price

Plant essential oils are mainly extracted by distillation. General 100 kg of flowers and plants can extract 2~3 kg of essential oil, so the price of real essential oil will not be too cheap. The market reference price is: common essential oils such as orange and tea tree oil are about 100 yuan /400- 1300 yuan, and precious essential oils such as sandalwood are about 100 yuan /900 yuan. I suggest you go to a regular shopping mall or a professional beauty agency to buy it. If some self-proclaimed imported essential oils are cheaper than domestic products, their authenticity is self-evident.

Step 2 look at the usage

Except for a few varieties such as roses, tea trees and lavender, most pure essential oils can't be directly used on the skin, otherwise it will cause burns and peeling. If the essential oil introduced to you by the merchant says that it can be used directly on the skin, and it is said that it is pure essential oils, then there is a problem. We must distinguish between base oil and essential oil. Some base oils in the name of essential oils have really deceived many people.

Step 3 smell it

Most pure essential oils tastes soft and mellow, because 100% is extracted from plants, so pure essential oils has an indescribable taste of natural plants (although the smell is not necessarily good), and the essential oil prepared with essence has a slightly pungent taste, so it is harmful to use such essential oil for a long time. When I first entered the nose, the taste was not very strong, but it had a aftertaste. At the back of the head, there will be a feeling of wilderness. Everyone feels different about him, and his taste is different.

4. Point fumigation

A. If there are oily residues (different from scales) left after unilateral essential oil is pumped several times, it means that it has been diluted with vegetable oil or mineral oil; If there is any crystal residue, it is probably diluted with ethanol and ether, which is self-evident.

B, take a glass of water and drop a drop of essential oil. The real pure essential oils generally volatilizes quickly, and then there is no residue. If diluted with vegetable oil or mineral oil, the volatilization speed will be much slower, and oil stains will often be left on the water surface.

Step 5 look at the packaging

Essential oils are usually stored in dark sealed small glass bottles, with a special bottle cap resistant to strong acid and alkali to prevent sunlight and oxygen from infiltrating, so that essential oils do not volatilize and deteriorate. In a good preservation environment (room temperature), it can generally be preserved for two years, and the essential oil with good quality can be preserved for 4-5 years. Citrus essential oil can also be stored for 1-2 years. Bottled products with drippers are generally 3%- 10% diluted essential oil, not pure essential oils. The label of pure plant essential oil should indicate the purity.

6. Look at the specific gravity

Generally speaking, the proportion of grass essential oil is the lightest, and it will disperse quickly when dropped into a glass of water, and the water surface will be oily; Resin essential oil is the heaviest molecule. If you drop it into a glass of water, it can completely fall into the bottom of the cup and should not dissolve in water. But both of them will distribute two kinds of essential oil molecules under the water surface. Although they are insoluble, they have not penetrated into the whole glass of water. Citrus, a special flower essential oil, is heavier than water and insoluble in water. Similar to resin essential oil, it will drop directly into the bottom of the water, and you can see crystal clear dark green essential oil beads.

7. Look at this color

For example, the foreign citrus in Germany contains a very precious ingredient "Blue Classic", which is dark blue in color and has a strong medicinal flavor. If what you bought is colorless, you must have been cheated!

8. Look at this texture

The purer the quality of essential oil, the stronger the permeability. Gently rub the tested essential oil on the back of your hand or the inside of your wrist, and then gently * * * with your fingertips. Good quality essential oil will be absorbed in an instant and will not leave shiny oil on the skin. You can also observe whether the essential oil contains impurities. For example, the essential oil extracted from the peel by the traditional freeze pressing method will leave a little residue, which will make the product quality worse. Because of the molecular structure, the volatile speed of essential oil is relatively fast, and it will play out within 5- 10 minutes, which shows that it is relatively pure. Volatile slowly, not necessarily pure essential oils.

9. Look at the degree of integration

Pure essential oils is very lipophilic, and when it is mixed in base oil, it will be completely integrated, and the molecules of the two are completely combined. Otherwise, the essential oil contains chemical synthesis or wax, which makes it impossible to completely blend with the base oil.

10, depending on the origin.

Plants that extract essential oils will have different qualities due to different producing areas. Land quality, temperature, humidity, planting level, harvesting time and treatment methods all directly affect the quality of its essential oil. Therefore, we should pay attention to the origin of plants when choosing essential oils. List the origin of some essential oils, such as rose essential oil in Bulgaria.

The essential oils from herborist and Gamelot that can be bought in shopping malls are all guaranteed in quality. Suggest going to ... >>

Question 6: How to identify lavender pure essential oils? Lavender essential oil is a very effective beauty product, which is not necessarily used by people. I'll teach you this later. First, I'll teach you how to distinguish between true and false essential oils. )

The first is the smell: high-purity essential oil will have a pungent smell of grass, but it will be faint after passing, and it will last for a long time. To the back of the head, there will be a feeling of wilderness, with different front, back and middle flavors. If the flavor of essential oil is fragrant and sweet, a certain amount of essence or spice is often added.

Second, look at the texture, the purer the quality of essential oil, the stronger the permeability. Rub the tested essential oil lightly on the back of your hand or the inside of your wrist, and then gently * * * with your fingertips. Well-developed essential oil will be absorbed in an instant and will not leave shiny oil on the skin. You can also observe whether the essential oil contains impurities. Essential oil is a universal oil, which can be used in various hair care and skin care products. Pure essential oils is very lipophilic and can be completely blended. If it is fake, it may contain chemicals or wax, so it cannot be completely blended with base oil.

Fourth, look at the price! ! ! Plant essential oils are mainly extracted by distillation. Generally 100 kg of flowers and plants can extract 2-3 kg of essential oil. So the price of real essential oil will not be too cheap. The easiest way is to suggest that you buy it in a regular large shopping mall or professional beauty salon. If some self-proclaimed imported essential oils are cheap, their authenticity is self-evident, not beneficial but harmful. Because it must contain a lot of chemical products and flavors and fragrances, it is not only harmful to our health after use. The real pure essential oils is completely extracted from plants.

5. Look at the place of origin: the quality of plants that extract essential oils will vary from place to place. Land quality, temperature and humidity, harvest time and treatment methods all directly affect the quality of essential oil. The origin of lavender oil, the best of essential oils, is Provence, France, which is famous for its lavender fields all over the mountains. It has now become a world-famous tourist attraction. Unfortunately, the quality of air pollution is not pure enough due to centuries of industrialization. Now the best producing area of essential oil in the world comes from our motherland, Yili, Xinjiang. Surrounded by mountains on three sides, it has a large temperature difference between day and night, moderate rainfall and strong photosynthesis. It has a climate very similar to that of the Mediterranean, with a planting history of more than 40 years, accounting for 90% of the country.

Lavender (lavender)

nature

In the French countryside, when a large area of lavender is in full bloom, the ground is almost a purple ocean. Blue and purple are really beautiful. It is also cultivated in Britain and Yugoslavia. Although it is extracted from flowers, it has the fragrance of grass and wood, and the essential oil is pale yellow. LAVANDIN, another variety, has a similar fragrance, but the effect is poor.

Historical usage record

It is used to exterminate insects and clean wounds. When antibiotics were scarce in the world war, it was used instead of anti-inflammatory and added to French cuisine. Because it can remove flatulence and increase flavor, Romans often use incense to remove bacteria in the air.

What you need to know in use

Do not use it if you are pregnant or have low blood pressure.

efficacy

Hypertension, bronchitis, sore throat, cold, pharyngolaryngitis, asthma, tuberculosis, dyspepsia, flatulence, diuresis, muscle soreness, baldness, oily skin, wrinkle removal, acne, anti-inflammation, scar promotion, eczema, burn, sunburn, tinea, epilepsy, irregular menstruation, dysmenorrhea, assisted delivery, leucorrhea, decompression and so on.

Question 7: How to distinguish the purity and smell of essential oil 1-is the smell of essential oil correct?

100% pure essential oils, open the bottle cap, the first taste will be very heavy, unpleasant and complicated. Dilute the concentration to below 5 degrees, and the taste will be mild and delicious.

2, look at the color-whether the color of essential oil is correct.

For example,/kloc-lavender essential oil with 0/00% purity is colorless or yellowish, not "sticky" and feels "very thin". The lavender essential oil that feels "thick" and "sticky" is definitely not pure essential oils!

3. Purity test method

(1) If there is gasoline smell during use, it is not pure essential oils.

⑵ Essential oil drips on white paper, and if it is stained with oil stains, it will be basically impure (this method is not applicable to individual essential oils).

(3) The smell is continuous (i.e. pre-tone, mid-tone and post-tone). Pericarp and branches and leaves belong to the front or middle tone, with low viscosity and high volatility, such as tea tree, rosemary, eucalyptus, geranium, orange, bergamot and grapefruit. Flowers and woody plants are post-tuned, highly viscous and low volatile, such as rose, jasmine, orange blossom, frankincense, benzoin and sandalwood.

(4) Dropping experiment: 1-3 drops in the dripping oil, the essential oil with obviously larger oil particles (similar to household rapeseed oil or peanut oil) is impure blended essential oil, and pure essential oils is an active essential oil with small molecules, so the dripping reaction will spread rapidly, and there is a small layer of scattered bright spots on the surface, that is, it is in the state of oil halo and will not agglomerate together.

Question 8: How to tell if it is pure essential oils? There are several ways to identify the purity of essential oil.

1: Distinguish the fragrance. Essential oils (excluding base oils) all have the fragrance of the first, middle and last three parts, and have different tastes at different time periods. If yes, it is proved to be essential oil; If not, it's just a scent, which proves that the essential oil is impure, even if it is added with essence, it is not essential oil.

2. Essential oils are rarely transparent, almost none. Generally use different colors. Ginger is yellow and orange blossom is pale yellow. Different essential oils, different colors. If it is transparent, then the authenticity of the product is questionable.

3. The implementation standard of unilateral essential oil by the State Administration of Pharmaceutical Products is QB/T 265 16. You can check whether this implementation standard is marked on the product packaging. If it is, don't worry, it is a unilateral essential oil. If not, or other standards, you can find out what this standard is. If it is not the implementation standard of unilateral essential oil, then it cannot be proved whether it is unilateral. Buy carefully.

At present, the price of essential oil can basically determine the purity of essential oil. The purity of dozens of essential oils on the market is limited, so it is hard to say whether they are essential oils or not. You'd better find a conscience brand when you buy it. You can learn about the brand Zhang Xiaoniang, whether it is the implementation of standards or other, it is a very conscientious brand.

Question 9: How to distinguish lavender essential oil The following points are for you to distinguish the quality of essential oil:

1, the taste of pure essential oils is fragrant and natural, so there will be no choking smell and alcohol smell of chemical spices when inhaled;

2. pure essential oils is packed in a glass bottle, its color is clear and transparent liquid, and there will be no turbidity;

3. When pure essential oils drops into water, it will float on the water surface to form a drop of oil, which will not dissolve even if it is stirred;

4. pure essential oils is highly volatile. If it is dripped on paper, it will completely volatilize within about 24 hours, leaving no oil stains.

I hope I can help you!