Ittar Abi Ali al Sina, regarded as a noble Doctor who ever lived. He was among the first people to come with the technique of distillation of roses and other plant fragrances. Liquid perfumes used to be a mixture of oil and crushed herbs until his discovery where he first experimented with roses. The traditional Attar-makers also used petals which were ground into a strong blend. His popularity spread over other continents after he created Rosewater which was more delicate than the previous versions. He formulated at least 62 cardiac medicines out of which 40 were made from Attar. They include
Cannabis flower essential oil by α-pinene and limonene which together often comprise 75% of the live plant's volatiles. However, extracted essential oils can change in composition, and the live plant, dried plant and essential oil can smell rather different. Even in "drug-type" hemp, the THC content of the essential oil was not more than 0.08%. In the essential oil of five different European hemp cultivars, the dominating terpenes were myrcene (21.1–35.0 %), α-pinene (7.2–14.6 %), α-terpinolene (7.0–16.6 %), trans-caryophyllene (12.2.–18.9 %), and α-humulene (6.1–8.7 %). The main differences between the cultivars were found in the contents of α-terpinolene and α-pinene. Other terpenoids present only