At the pharmacy (10ml eg. About 17) one obtains better quality than "LaVita". Lt. Pharmacists are indoors more "fines". But he also said that this is not necessary for use in oil burners.
That the smell is not "forever" holds in the incense burner, it should be clear:
Essential oils (the aroma substances) are not heat resistant, evaporate.
So rather add a few drops every 3-4 hours. In 100ml to get so from long * g *
Conclusion: The oils of LaVita are an alternative to the horrendously expensive kostenkünstige pharmacists quality, which is not necessary IMHO for fragrance lamps and wardrobes..
I'll buy them on. Gladly again at the store where I bought it so far.