For some years now I have been applying several drops each of undiluted pure essential oils patchouli, ylang ylang, sandalwood and cedarwood to my neck and throat after a shower, and the fragrance is wonderful, but as a bonus this same fragrance comes up from the toilet bowl every time I do a dump. To confirm I wasn’t imagining it, the first time it happened I smelt the loo paper after the first wipe and there was the fragrance of all those essential oils. Why is this, and has anyone else had the same experience ? I must be one of the very few people in the world who can say that not only does their shit not stink, but that it is exotically perfumed !
An obvious exception to this rule is when certain plants generate an allergic reaction to the user; it is not advisable to use that specific essential oil. Some essential oils can also cause allergic reactions when used undiluted on the skin. It's always good practice to perform a skin reaction test, by applying a small amount of oil to the skin's surface and observing any changes over the course of fifteen minutes.

Taking a test, going on a first date, or your first day at work can be filled with a bundle of nerves. Breathing in and out and counting to 10 can help alleviate feelings of fear or worry, but for 40 million adults in the U.S. with an anxiety disorder, telling yourself to stop being nervous or not to panic can make it worse. Essential oils can help decompress and de-stress through the healing power of scent.


I’m so glad I found this site when I googled “oils comparable to young living.” I have been using Young Living oils for a few months now, but can’t keep up with the prices. I absolutely love and believe that essential oils help me sleep better, relieve my headaches and improve my life! I have bookmarked your page so I can frequently refer to it. Thank you for putting the time into researching each of these brands and building this site (beautifully done!).
Thank you for asking this question! I have spent countless hours researching this very question, and have even contacted Young Living to get their response, all to no avail! I feel like someone is not being honest, and while I want to just go with YL, the fact that at first they didn’t respond and when the finally did (through a consultant who was on a live chat), the response was vague. It just makes me question if there is corruption in the EO industry like so many others. Would LOVE for someone to respond to this question!
In a quote from aromatherapy expert, David Crow, he writes, “[T]he antimicrobial effects of essential oils are most potent not when the oil is used in liquid form… but when pathogens are exposed to the vapors of the oils.” Not only do the oils clean the air and get into your nose, but they are also penetrating your skin, getting into your bloodstream, protecting and healing you.
Substitutions: In a face serum, balm, or cream, try other essential oils heavy in monoterpene alcohols, like lavender and rose geranium; or sesquiterpene alcohols, like German chamomile, sandalwood, and patchouli; and ketones, like rosemary ct. verbenone and manuka. Additionally, based on your skin type, other carrier oils may be suitable. For acne or oily skin, try grapeseed or hemp oil, and for normal or combination skin, try using apricot kernel or jojoba.
It is very important to note that not all essential oils are safe to take internally. When in doubt, do not ingest it to be on the safe side. However, those that are will give a strong medicinal effect when taken internally. With that being said there are definitely some very strict precautions you must adhere to when taking essential oils internally since they are so strong. These are very important and not to be ignored.
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Apply to the body directly. Some people find it soothing to apply essential oils to pressure points, like the wrists or behind the ears, or use oils to give themselves a light self-massage. (Massage for–or from–your bed partners work great, too!) Essential oils in undiluted form are highly concentrated and intense, and can irritate your skin. DO NOT APPLY undiluted essential oil to your skin. If you’re planning to use essential oils topically on your body, be sure you’re buying an already diluted oil—a mixture of the fragrant essential oil of your choice and a carrier oil (often a vegetable oil).
Although highly fragrant, concretes contain large quantities of non-fragrant waxes and resins. Often, another solvent, such as ethyl alcohol, is used to extract the fragrant oil from the concrete. The alcohol solution is chilled to −18 °C (0 °F) for more than 48 hours which causes the waxes and lipids to precipitate out. The precipitates are then filtered out and the ethanol is removed from the remaining solution by evaporation, vacuum purge, or both, leaving behind the absolute.
I’m new to the world of EO’s. A doTerra-using friend made a “concoction” help my sinuses drain during an infection. EO’s involved are: eucalyptus, rosemary, melaleuca, doTerra’s Breathe blend, lime, and lavender in a coconut oil base. I slathered the oil mixture on my facial sinus areas, using the oils about 7 or 8 times in a 12 hour period. When I got up the next morning and washed my face, my face felt like I’d gotten a mild sunburn. Is this normal? Or an indication of anything? Too much EO to the face? Wrong choice of EO’s used for facial use? Thanks for any input!

Another useful essential oil for digestion is peppermint. Research shows that peppermint oil works to provide rapid relief of IBS symptoms. In a 4-week, randomized, double-blind, placebo-controlled clinical trial, 72 patients with IBS received either peppermint oil or placebo. The peppermint group experienced a 40 percent reduction in total IBS symptoms after 4 weeks, which was superior to the 24 percent decrease of symptoms reported by the patients in the placebo group. After just 24 hours of using peppermint oil, the treatment group experienced a decrease in symptoms of 19.6 percent. (8)
I’ve read the other blog about homemade deodorant and im looking to give it a shot. recently ive had painful reactions to deodorant and antiperspirant (all types and brands, even natural or organic like toms and green beaver) so im trying to get down to fewer and fewer ingredients. i have some essential tea tree oil and mixed it with some coconut oil but i still stink 🙁 . Im looking for an oil that i can use that will be strong but relatively “neutral” in smell ( im a guy so im not too interested in smelling like lavender), but it has to be able to be put on my skin without any reactions. Anyone have any suggestions?
Words like "natural" and "organic" get tossed around constantly in regards to beauty, food, and health products — but the truth is that these words don't mean much of anything right now. In America, there is no certified definition of the word "natural" when used on branding labels and ingredient lists, so companies can make these claims as often as they want with little repercussions.

There’s a science to everything—even the ancient art of using essential oils to help you feel your best. At Isagenix, using compounds found in essential oils in many of our products is second nature. In fact, we’ve been harnessing the power of botanicals for more than 16 years, so you can enjoy all the benefits and the very best that nature has to offer.


doTerra is a Young Living rip-off, but they are still better than most. I got off 4 Rx drugs with Young Living Essential Oils, I use them daily on my skin undiluted and take them internally several times per week. Thanks for your article on oils — just a note that there is a VAST difference between most oils sold in health food stores and cheap online venues vs. true therapeutic-grade oils. =)
Since we are not chemists, nor do we have the resources or equipment to evaluate the chemical purity of the essential oils, we stuck with methods of evaluation available to the average consumer. Out of the nearly 40 different essential oil companies researched we were able to narrow down the list to a total of seven reputable companies by using the parameters listed above in our section ‘What to look for when purchasing essential oils.’
I decided that it was time to upgrade my essential oils, and signed up to sell doTERRA essential oils. I didn't really plan on selling essential oils to many people, as I was just looking to get the 25% off discount that you get for being an “Independent Product Consultant” or “IPC” as they call them. When the introductory 3-pack of essential oils (lavender, peppermint, and lemon) came in, I was really excited to smell the difference! The first one that I opened was the peppermint essential oil and I was shocked at what a candy-like smell it had. It smelled so deliciously sweet that I was blown away because all of the other peppermint essential oils that I owned smelled of  the herbaceous earthy peppermint that you find in the garden; doTERRA's peppermint essential oils smelled like the finest peppermint candy I had ever smelled. I assumed, that since these essential oils are 100% pure and “Certified Pure Therapeutic Grade”, that the higher end brands had better smelling peppermint. This excited me, I could smell a difference! I had been afraid that I wouldn't be able to smell the difference. The funny thing is, I thought that because the doTERRA essential oils smelled better AND are “Certified Pure Therapeutic Grade”, that they were better…but I was only listening to the MARKETING.
I’m still a beginner but I know that for many essential oils, you need what is called a carrier oil. These carrier oils mixed with the essential oil are what make it safe for skin. I suggest looking into getting the book ( aromatherapy for beginners) if you are serious about it. I’m still reading it but it has a tone of info, meanings, recipes and helpful terms of understanding. Also, it has a handy section in the back about resources online and in books to learn more and to find your essential oils. Good luck. 😀

Promising Review: “I’m an essential-oil snob. I collect oils for all sorts of therapeutic uses, mostly external. This is the first lavender oil I’ve purchased that has specifically stated it’s safe to ingest. I’ve been ingesting it, and I find it very anxiolytic; I take it in filtered still water or add it to sparkling water (this is my new favorite refreshment). The oil smells just as a good lavender oil should, and I’m impressed with the purity of it and its suitability for internal and external uses. It’s much easier and potent using this oil as opposed to making a messy tisane with dried lavender buds. I go through lavender oil faster than I do other oils (I think this is the case with most frequent users of essential oils, as it’s arguably a staple of any collection), and I’ll definitely make this my go-to brand/company for lavender oil.” – KittenLitter


Lisse essential oils purchases their products from distributors around the globe. Sourcing essential oils from foreign countries is common practice in today’s essential oil marketplace. It allows each plant to grow and flourish in its natural environment before it is harvested. Lavender originates in the Mediterranean, Myrrh is sourced best from the Middle East or Africa, and Sandalwood is originally from India. True essential oils have to come from their country of origin to be their most original variety. Lisse essential oils are 100% pure and routinely tested for quality. You can request test results on their website.

According to Avery, while specific dilutions can vary based on personal needs and individual essential oils, the general rule of thumb is to aim for a one to five percent dilution. "A one percent blend is six drops of essential oil per ounce of carrier, while a five percent blend would be 30 drops per ounce of carrier," she says. For specifics, check out Aura Cacia's handy dilution guide.
If you're already a fan of Fractionated Coconut Oil, you need to try our organic version! Unlike other coconut oils on the market, our Organic Fractionated Coconut carrier oil is available with MCT (Medium-Chain Triglyceride), and uses a USDA approved NOP (National Organic Program) to extract the oil. This oil is created chemical and heat free which allows for a clear, refined, and odorless oil that won't solidify in cooler tempatures. Organic Fractionated Coconut oil's quick absorbtion rate and and moisturizing properties make it perfect for your skin straight out of the bottle, but this oil is also a great makeup remover and cleanser for your skin or hair. This oil is also the perfect addition to lotions, creams, and roller blends. Use this oil without feeling leaving you soft and moistured without feeling greasy. Plant Therapy's Organic Fractionated Coconut Carrier oil is a staple for every household or beauty routine!
Diffusion is the process of dispersing essential oils so that their aroma fills a room or an area with the essential oil fragrance. Therefore, a diffuser is a device that diffuses the essential oil into the air. There are several types of diffusers available on the market in 2018, and many have reviews that may help you decide which one may be right for you, if you are interested in getting a diffuser.
Paula, I am no doctor, but taking fish oil, exercising, eating a very healthy diet (no sugar) and getting PLENTY of rest helped with my postpartum depression. Sunlight, being with loved ones and reminding myself to be kind and gentle to ME also helped. I turned to my faith. Sorry I couldn’t answer your question about the oil, but I humbly wanted to share a little advice and the suggestions are all safe for baby. Congrats, to you and your partner! It gets better, love.
A randomized, blinded, placebo-controlled crossover trial31 in 17 healthy human volunteers investigated brain changes detectable by positron emission tomography and magnetic resonance imaging scanning after administering 8 weeks of SLO at 160 mg/d. The investigators focused on the inhibitory 5HT1A receptor because of increases in activity of this receptor being highlighted in the pathophysiology of anxiety in previous neuroimaging studies.32 They found reduced binding potential at the 5HT1A receptor in the hippocampus and the anterior cingulate cortex in the SLO group compared with placebo, which has also been demonstrated after administration of escitalopram or electroconvulsive therapy in patients with anxiety.31,33 The authors postulate that reductions in 5HT1A receptor activity may be a commonality in the anxiolytic efficacy of various interventions, and that SLO also acts via this mechanism.
Sadly there is a wide discrepancy in the quality that is reflected in the price. The less expensive brands I have ended up using for cleaning the house. Edens Garden oils smell like they are old and dirty. I love Young Living and yes, I have not tried DoTerra. Only because there selection was so limited and I felt there wouldn’t be much differenance between them and Young Living.
At first, some individuals are understandably leery of purchasing essential oils online. Be assured that there are many reputable essential oil and aromatherapy retailers and suppliers that sell their essential oils online. Buying online gives you the opportunity to shop with many more reputable companies than if you were limited to only those businesses within your locale. Reputable companies are experts in properly bottling and packaging their oils for shipment.
I decided that it was time to upgrade my essential oils, and signed up to sell doTERRA essential oils. I didn't really plan on selling essential oils to many people, as I was just looking to get the 25% off discount that you get for being an “Independent Product Consultant” or “IPC” as they call them. When the introductory 3-pack of essential oils (lavender, peppermint, and lemon) came in, I was really excited to smell the difference! The first one that I opened was the peppermint essential oil and I was shocked at what a candy-like smell it had. It smelled so deliciously sweet that I was blown away because all of the other peppermint essential oils that I owned smelled of  the herbaceous earthy peppermint that you find in the garden; doTERRA's peppermint essential oils smelled like the finest peppermint candy I had ever smelled. I assumed, that since these essential oils are 100% pure and “Certified Pure Therapeutic Grade”, that the higher end brands had better smelling peppermint. This excited me, I could smell a difference! I had been afraid that I wouldn't be able to smell the difference. The funny thing is, I thought that because the doTERRA essential oils smelled better AND are “Certified Pure Therapeutic Grade”, that they were better…but I was only listening to the MARKETING.
We got rid of a bad bedbug infestation in the house with, well it was either Tea Tree oil or Lavender oil, mixed into spray bottles with 91% alcohol. We weren’t shy about it either, our 1st experience with EOs. We burned through 2oz bottles of each and the bugs vaporized and were gone in two days! They really don’t much like the air that clean and fresh.
This prized essential oil is frequently called the king of oils. Frankincense has been used in religious ceremonies since biblical times. Used topically, this oil soothes and rejuvenates the skin and helps to decrease the appearance of imperfections. Used internally, Frankincense supports cellular and digestive performance. Used aromatically, this essential oil promotes relaxation and overall emotional wellness.
For each profiled oil, you will find information on its botanical name, common method of extraction, oil color, oil consistency, perfumery note, strength of the initial aroma, aromatic description, uses, constituents, and safety information. For most information provided, the data is based on the review of particular samples and could differ from your personal experience. As the uses, constituents and safety information data are subjects requiring research, specific references are provided.

RC and Raven (YL Blends) are a few that I have used for myself and family for breathing issues. And Digize (also a Young Living Blend) is excellent for digestion, acid, and upset. Peppermint and Fennel are also options to look into. As far as best brand, you will have to do your research. I have been very happy with Young Living, but I know many will find the “best” from various sources to make up their essential oil cabinet. You will not want to use a vaporizer for your oils, I would suggest purchasing a diffuser which is designed to disperse your oils, over time essential oils will breakdown plastic tubing. A search on Amazon or Abundanthealth.com is a place to start looking at diffusers. You can also get a free one in premium kits sold by Young Living. Please feel free to contact me.

I keep reading comments about not Ingesting EO. I’ve researched young living brand EO and they are injestable. They are a therapeutic hospital grade. And their founder Gary young Takes many eo in capsules daily. Not all brands are. So I would only trust this particular brand because I’ve done the research on it. I know people who add YL lemon or grapefruit daily to water a drop is fine you don’t want to do more than that it can cause cramping and pain these oils are highly Concentrated. Make sure you do your research, for it is the only way you will be safe using these oils they are very powerful and in the wrong hands of someone who is not educating themselves can be very harmful. I attribute my nieces grades in school going up due to eo. They have helped her focus and help her attention. My moods have changes as well as my daily stress, anxiety and nervousness. I love eo and all they have done for my family.
Essential oils are in fact NOT oils at all, they’ve simply acquired that name because they do not mix with water, just like regular oils. They are a vital liquid present inside living plants — a natural solution of various complex chemical constituents. Scientifically, essential oils are concentrated aromatic volatile plant compounds (‘volatile’ meaning they can change state or evaporate very easily). They are mostly derived from the flowers, leaves, stems and fruits of plants, while some are extracted from the bark and even the sap of trees.

Hi. I have a question. I have always read that in order to make essential oil you need tons of a plant to get a little bit of the the oil itself, like you mentioned in the article. So it seems like something that can only be made industrially. But I also see recipes for homemade essential oils. So, my question is: Are these homemade oils real essential oils? Or is there another name for those ones? Are they as good in terms of benefits for the skin and its scents properties?

Poisoning by lavender is uncommon. In the late 1960s and early 1970s, the LD50 values for lavender taken orally and applied topically were determined. In mice, the oral LD50 was 13.5 ± 0.9 g/kg, where central nervous system depression occurred 10 to 15 minutes following ingestion and death occurred 1 to 3 days later.47,48 Similar results were observed in rats.47 For dermal applications, the LD50 was greater than 5 g/kg, with no systemic symptoms or deaths in rabbits observed up to 14 days.48 In humans, an 18-month-old boy ingested homemade lavandin (Lavandula x intermedia) extract. Three hours following the ingestion, the child developed confusion and deep drowsiness, with adaptive motor response to painful stimuli indicative of moderate brain injury (Glasgow Coma Score = 9). His neurologic status normalized within 6 hours of hospitalization, and a follow-up electroencephalogram was normal at 24 hours. Comparative toxicology analysis between the boy's blood, urine, and pure lavandin extract showed linalyl acetate, linalyl formate, and acetone were detected in all samples. Acetone, which was a confounding factor for coma in the poisoning, was found to be slightly higher than normal in healthy adults and was concluded not to be the cause of the central nervous system depression.49


Thank you so much for this excellent distillation! I’m just beginning to use EO’s, and have had such excellent results that I am encouraged to try more — thank you for helping me find reputable companies to purchase from. The pricing comparison was especially helpful. My only issue so far is with Aura Cacia — the lids are so hard to get off the bottles — my 71 year old hands just can’t exert that much pressure any more — I emailed the company thru their website, and was sent alternative bottle caps, that didn’t even fit the bottles. Alas, not buying from them any more, which is unfortunate, since they are readily available in local stores. However, online ordering is easy and quick. Thank you once again!
Amanda, I don’t know what your qualification is to make such a bold statement. MANY, MANY, MANY, MANY people use Young Living oils internally WITHOUT adverse side effects and WITHOUT burning their esophagus or hurting their gut flora, in fact it improves gut flora if you know what oils to use. Oils ingested are usually done so via a veggie capsule or can be mixed with water or Young Living’s NingXia Red. I myself ingest YLEOs on a daily basis and have been able to get off my proton-pump inhibitor (PPI) medication for gastroesophageal reflux disease (GERD), which was causing the nice side effect of osteopenia (pre osteoporosis). If you know what you’re doing and do the research, oils are extremely beneficial without nasty side effects. Yes, I am a YL distributor, but I became one after using the oils for a while myself and on my pets and seeing great improvement in our situation. Hope that clears up the ingestion issue for you.

Not to be confused with the more exotic Holy Basil described above, regular Basil, which millions worldwide enjoy as a spice and salad green, also acts as a powerful anxiety-reducing herb in essential oil form. According to a meta-study of all research done on essential oils at Hainan Medical University, Basil was found to be one of the most powerful essential oils for reducing anxiety and stress out of the hundreds of oils surveyed. [10]
Thank you for the detailed research. I am new to essential oils. I want to start using them in my candles and hence was researching the web when I came upon this site. I’ve already bought a few oils from Plant Therapy and am in the process of testing them in the candles. Please let me know your views on UpNature essential oils. I had bought a bottle of Citronella oil from them last year, and was very pleased with the purchase. If I had more research done on them I would really appreciate. The problem I’m aware of so far with UpNature is that they carry very few oils in their online store. Please share anything you know about them
This next mixture is going to first take you back to the beginning of this article. It is time to bring the lavender oil back out once again. You are going to add some peppermint oil, too. Once again there is a third essential oil to add to the mix, and it is lemon oil. It was mentioned earlier that peppermint oil can help you if you have a cold or respiratory issue. Well, this mixture of three important essential oils for diffusers can help alleviate many allergy symptoms.

As a rule, avoid buying essential oils from a company that prices all of its oils the same. The process of extraction can vary enormously from one plant to the next, and it makes no sense that an agarwood essential oil (costing around $800 per ounce) could be priced anywhere near the same as a lemon essential oil (which costs less than $15 per ounce).
I have spent a lot of time on here debunking the myths put forth by glassy eyed cult followers and over zealous MLM reps and the main stream aromatherapy community loves it when I do this. But turnabout is fair play. Now its time to clear up a myth on the other side of aromatherapy. I see almost daily where people say things like “therapeutic grade” doesn’t exist or there is no such thing as a therapeutic grade standard. But to say there is no such thing as a TG standard is like saying there is no such thing as essential oils.
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Yes, of the 3 brands I am most comfortable using for therapeutic purposes the first is doTerra. Its testing exceeds everything else I’ve come across protecting against not just fillers and chemical extraction, but also against oxidation for potency levels. When air hits the oils for a period of time they oxidize slowly and if that happens they may be less quick and effective than if they had not had that time to oxidize. No other company tests the same number of times for this level of potency. I also love that the testing is done by a third party rather than in house testing.
Eucalyptus Globulus essential oil is popular for its known ability to help with respiratory issues. This oil is also perfect to use after strenuous exercise or overexertion, it can help with relieving muscle or joint pain. Eucalyptus Globulus can also help with aging by comforting the joints and muscles. Finally, use this oil everyday to help focus the mind, promote body relaxation, and normal circulation.

Most essential oils on the market shouldn’t be taken internally because they aren’t pure.  I second the statement made by someone up above — I use Young Living oils internally (and externally) on a daily basis!  I was able to get off four different prescription drugs I was on with Young Living oils.  I teach people how to use them for emergency preparedness/collapse medicine purposes, as well as day-to-day.  I don’t want to self-promote, but if you want to see my website send me an email!  [email protected]


No, don’t use it on your skin without diluting it. You can mix a drop or two into your moisturizer or into an oil like olive or coconut. Also, for acne and blackheads you also need to look at toxins in the other products you are using and make sure you are exfoliating several times a week. A green clay mask will also help pull toxins out of the skin. Just using rosemary oil without looking at the root causes of acne and blackheads will only go so far.
I bought a jar of mag chloride at WF and tried it as a for soak for him. It worked the very first night! However, that jar ( a little over a cup) was $15. am very frugal, (hence interested in this article) and after doing much shopping around I ordered a large bag of Ancient Minerals Magnesium Flakes from Amazon, and it works out so much less expensive that way. Now I use 1/2c in a gallon of the hottest water possible and he soaks for 30 minutes each night. No more cramps. BONUS: when he’s done, I reheat half of that water in the micro and soak my own feet in it. I have osteoarthritis and general soreness all over, and there is a significant difference in my pain level now, as well. Mag is a great anti inflammatory nutrient.
Hi there! I know in your list of 21 facts you said these oils should not be ingested…I have heard otherwise about a few specific brands. What were your true thoughts on this? Do you or have you used any oils internally? Or anyoneelse on here maybe? Really wanting to heal from the inside as well as using these topically. Thanks in advance! I’m still pretty new at this so any input or advice would be great!
Synergy is everything. While individual oils are potent, combining the aromatic molecules of different essential oils allows them to work together and results in greater benefit than the sum of individual effects. From a holistic perspective, I often blend synergies with three to five essential oils. At the very least, this blending technique allows me to have a core of the blend, enhancer, and harmonizer.
Essential oils prices at The Ananda Apothecary are fair, not too steep but also not too good to be true. Their specialty oils like Sandalwood, Helichrysum, or Rose are properly and fairly priced higher (as they should be), indicating a true quality product behind the label rather than a quick sale. Certain essential oils are just more expensive due to the incredible amount of effort and volume of plant materials required to produce the bottle of oil you buy.

Rose essential oil comes from the petals of the rose flower, which have an enchanting floral scent that’s known to help relax the senses. A 2014 study revealed that using a rose aromatherapy foot bath may help lower anxiety in pregnant women during labor. Rose essential oil helps promote feelings of hope and joy and boosts self-esteem, which can be beneficial for those suffering from depression.5


While essential oils have risen to popularity in the modern era, phytotherapy is as old as humanity itself. The study of natural compounds and extracts used as medicine is found in every culture in history, and evidence of phytotherapy in practice dates back to as early as 3500 B.C.E. Much of the extraction of medically beneficial compounds from plants and their parts was done using simple methods such as hydrodiffusion, vaporization, decoction, and the use of basic solvents.
Kristina is a certified Personal Fitness Trainer with specialties in Senior Fitness and Fitness Nutrition through the American Council on Exercise. She is passionate about living a healthy lifestyle and loves to share her passion by consulting and writing about fitness and nutrition. She loves holistic cooking, hiking, swimming, kayaking and photography.
Essential oils are most commonly either inhaled as a fine mist of vapor through aromatherapy, or diluted with water or carrier oil, such as almond oil, avocado oil, coconut oil, jojoba oil, or olive oil and applied directly to the skin.(5) Most essential oils, unless they are specifically food-grade quality, are not ingested. One way to use food-grade peppermint oil or lemon oil is to blend a few drops into a glass of water for potential internal support. Peppermint oil gives sparkling (carbonated) water a refreshing wintery flavor and may help support a calm stomach.
Allelopathy occurs when a plant releases chemicals to prevent competing vegetation from growing within its area or zone. An often-cited example is in southern California, home to the dominant shrubs Salvia leucophylla (sage bush) and Artemisia californica (a type of sage). Both species release allelopathic terpenoids, eucalyptol and camphor, into the surrounding area, which effectively prevents other plant species from growing around them. This is allelopathy. Chemicals that deter competing growth (terpenes, for example) are referred to as allelochemics.
To test if you’re sensitive to an essential oil (which is probably best to do before using it in a skincare preparation): Combine one drop of essential oil with 1/2 tsp carrier oil (like olive, jojoba, or sweet almond). Rub this on the inside, upper portion of your arm and wait a few hours. If no redness or itching develops, you’re most likely not sensitive to that essential oil.
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