Essential oils are not really oils.
They do not contain the fatty acids that constitute what we would consider an actual oil. Valerie Gennari Cooksley, author of Aromatherapy: Soothing Remedies to Restore, Rejuvenate and Heal defines essential oils as “highly concentrated plant constituents possessing potent medicinal and cosmetic qualities.” However, I think Stephanie Tourles nailed it in Organic Body Care recipes when she said, “I consider essential oils the life force or the soul of the plant.”
Most essential oils are high in antibacterial, anti-fungal, and antiviral properties:
This makes them an excellent addition to your homemade cleaning preparations. Oils that are best for cleaning are: Lemon, grapefruit, eucalyptus, peppermint, tea tree, lavender, and rosemary.
Essential oils are minuscule in molecular size,
which means they are absorbed well by the skin – making them perfect ingredients in personal care items intended to heal, soften, and nourish. However, they do not accumulate in the body over time – they simply offer up their healing properties and then pass on through.
Scientific studies have shown that rosemary essential oil helps your brain perform.
Specifically, smelling rosemary essential oil helps memory recall and performance on tests. Interestingly, this study also showed that groups that inhaled either rosemary or lavender essential oil felt much more relaxed than those who inhaled no odor at all.
Fragrance oils and essential oils are NOT the same thing.
As a rule of thumb, if you see the word “fragrance” or “fragrance oil” or even “perfume” on anything, you can assume this is synthetic and NOT natural. (Even if it says natural fragrance.)
Essential oils are wholly natural and cannot be patented;
which means that you’ll never see an essential oil in a pharmaceutical drug. As such, you can expect that the vast majority of mainstream healthcare practitioners will never recommend essential oils as therapeutic alternatives to drugs. More importantly, because essential oils cannot be patented, drug companies will not waste money studying them. This limits our scientific knowledge of essential oils GREATLY, and the majority of what we know about them are things that have been passed down through thousands of years of personal use and experimentation.