Rose oil the aromatics unaltered by heat. Because CO is gas at normal atmospheric pressure, it leaves no trace of itself in the final product. The equipment for CO extraction is expensive, which is reflected in the price of the essential oils obtained from the process. It takes a large amount of rose petals to distill a small amount of essential oil. Depending on extraction method and plant species, the typical yield can be approximately 1:3,000. To mitigate the cost, some dishonest dealers will dilute rose oil with geranium ("Pelargonium graveolens") or palmarosa ("Cymbopogon martinii") essential oils, both of which are rich
Issam al-Attar installed Ba'athist government following a hajj trip to Mecca in 1963, and has lived in exile in Germany since the 1970s. Attar was in turn removed from his position as Supreme Guide in 1980 as a result of poor health and due to repeated government victories in the Islamic uprising in Syria. He has led the Talaa’i organization in Germany since the late 1970s, which works mostly with non-Syrian Muslims. He still consults with the Syrian Muslim Brotherhood on Syria related issues. Issam al-Attar Issam al-Attar () is a former Muslim Brotherhood leader, a symbol of resistance to Hafez al-Assad,