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Meg20

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I'm putting together muscular release oil for my bodywork practice. However, I'm lacking in base note oils for the purpose. I'm looking for an essential oil resource searchable by note. Any ideas? Also, any suggestion of oils, especially base note oils, for tension and pain in muscles and connective tissue is more than welcome. Thanks!

Carolyn

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I had composed an answer to you weeks ago and then couldn't access the BB myself because my computer went on the blink. Unfortunately, even though I thought I had saved it to my documents - nothing there! So I'm sorry t his has taken so long to get to you. Always bearing in mind that even though olfactory 'notes' are categorized based on their specific chemical properties of volatility, the perception of notes is a rather personal thing. I've come across many references that list certain eo's in one category only to find the same oil categorized quite differently in another publication. David Williams provides some useful insights into what happens when we perceive odor changes during the evaporation of an essential oil in chapter 5 of his book The Chemistry of Essential Oils. If the oil is totally volatile, then all of the molecular constituents will begin to evaporate when a sample is exposed to the air - on a smelling strip for example - but because of their different molecular weights and intra-molecular interactions, the speeds at which they evaporate will differ. There are some exceptions to the rule of course - but generally constituents of low molecular weight and low polarity and low odor value - for example the monoterpenes, will come off first with the fastest evaporative rates. These then are your top notes - and this first impression is nevertheless modified by odors of other constituents, mainly the body notes and some base notes too depending on proportions and intensities. Molecules of most oxygenates - such as are found in functinal groups - will tend to bond to one another and prolong the duration of odor notes characteristic of that particullar oil. Apparently oxygenates that have molecular weights of around 150 to 200 actually evaporate relatively slowly and this is why the odor of a citrus oil will intensify as it evaporates. What is happening is that the light-weight monoterpenes which don't have very interesting odors anyway, evaporate and expose the stronger odors of larger citral and other oxygenates like fatty aldehydes for example. Bergamot is a citrus oil that doesn't apparently exhibit this phenomenon though. If you have an oil that contains a significant amount of oxygenates of high mol weight, then it will evaporate slowly - some taking weeks, months or even years. Williams give examples of guiaol, the santalols, ambretotollide and the vetivones - so eo's containing these components are extremely long-lasting and so would be considered strong base notes or fixatives. Cajeput contains about 1% or so of guiaol. Sandalwood contains mostly santalols and santalenes. Vetivert oil contains vetivones at around 10% (as well as vetivenes, alpha-vetivol and vetiverol) and Angelica root contains ambrettolidide at under 1%. Also sesquiterpenes are tenacious and can provide the final odor impression or dryout of an oil after everything else has disappeared long before. So look for eo's high in sesquiterpenes too . Here are some examples of dryout descriptions or what would be the equivalent of the base note - I have not included anything that is indicated as having a non-destinctive dryout - only those with significant descriptions: Ambrette Seed oil - rich, sweet, floral, musky, vinous Amyris oil - mild woody pine-like balsamic Benzoin - balsamic powdery Bergamot - warm - like orange pith Caraway - spicy Cedarwood Virginian - woody-balsamic Chamomile German - warm, tobacco-like Chamomile Roman - warm, herbaceous tea-like Cinnamon bark - sweet powdery Cinammon leaf - warm spicy Cistus - dry balsamic Clove bud - warm spicy woody Clove leaf and stem - clove-like Coriander - warm spicy rather balsamic Cypress - sweet balsamic Fennel (sweet) - warm aniseed-like GAlbanum - earthy dry spicy - resinoid = aldehydic, floral, agrestic = like the countryside Geranium - rich rose-like Jasmin Abs - floral fatty heavy animalic Juniperberry - sweet warm balsamic Labdanum resinoid - dry woody ambra Lavender absolute - woody spicy somewhat pungent Lemongrass - herbacsous somewhat oily Litsea cubeba - lemony sharp Marjoram (sweet? doesn't say which) - warm spicy woody Mentha arvensis oil - dry herbaceous Myrrh resinoid - warm spicy balsamic Oakmoss absolute - warm woody balsamic Olibanum / Frankincense - balsamic resinous Patchouli - dry woody balsamic spicy Petigrain Bigarade - dry herbaceous Pimento berry - fresh sweet spicy Rose Abs - warm floral honey-like Rose Otto - warm floral spicy Rosemary (doean't say which chemotype) - dry herbaceous Rosewood - woody-floral Sage, Clary - warm balsamic Sandalwood East Indian - attributed non-distinctive - however its reputation is of a well-known fixative and base note and it does contain mostly santalols and santalenes, so might apply body note descriptions here - soft, sweet, woody balsamic, fatty-floral Thyme (doesn't say which chemotype) - warm herbaceous spicy Tonka Abs - hay-like coconut-like Tuberose Abs - floral balsamic Vetivert - woody earthy Violet leaves Abs - woody earthy powdery Ylang Ylang Extra - sweet balsamic floral medicated Hope this helps. Best Carolyn

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