Guru Nanda oils are very inexpensive and generally good - excellent quality. $18 for this set
Essential oils are complex
They can change your mood, uplift your mind and thoughts, heal your body and so many other things.
“A single fraction of essential oil can often contain hundreds of compounds. Despite of the technical improvements and the enhanced selectivity currently offered by the state-of-the-art gas chromatography (GC) and mass spectrometry (MS) instruments, the complexity of essential oils is frequently underestimated….” (By using gas chromatography and mass spectrometry together it was found that ) ….”Compared to the most recent full GC-MS characterization, this represents 75 new compounds, essentially consisting of terpenes, terpenoid esters, and alcohols.”
https://pubmed.ncbi.nlm.nih.gov/23364750/?from_term=ylang+essential+oil&from_pos=4
If you are new to essential oils, try these for your meditation practice
Frankincense, Sandalwood, Rose (many kinds), Ylang Ylang, Lavender, Cinnamon, Citrus, Oregano, Lemon, Orange,
There are many “Breathe” products available, usually eucalyptus, peppermint, lemon etc. Okay to try the cheaper onee. Want to avoid fake essential oils and perfumey smelling stuff.
Not recommended: Full strength tea tree can burn your nose, anything that disagrees with you.
Left versus Right Nostril abilities are asymmetrical. Ability to detect odors at lowest threshold varies. Left versus right have qualitative differences. The world appears differently depending on which nostril is dominant.
Our subjective experience through our right sinus is very different than the subjective experience through the left side.
Links below are to hundreds of studies done.
Lavender https://pubmed.ncbi.nlm.nih.gov/?term=lavender+essential+oil
Tea Tree Oil https://pubmed.ncbi.nlm.nih.gov/?term=tea+tree+oil
Frankincense
https://pubmed.ncbi.nlm.nih.gov/?term=frankincense%20oil&pos=1Essential oils and MRSA
https://pubmed.ncbi.nlm.nih.gov/?term=mrsa+essential+oil
Essential oils and Anti-viral activity
https://pubmed.ncbi.nlm.nih.gov/?term=essential+oil+virus