If you are looking for a source of extremely high quality fragrances for altar offerings, here is a site: http://www.profumo.it/perfume/prodotti.asp?cat=5
Knowledge of fragrances is gained through study of Tibetan pharmacology, and certain substances are among the first medicines administered transdermally. This site has things I have not seen for over 40 years. Usually, when we prepare perfumed water, it is not considered sufficient to give it a shot of "Obsession" and then call it quits. Usually, we want to get a pure, natural essence.