Rose oil in geraniol, the main constituent of rose oil. Some of these "rose oils" are up to 90% geranium or palmarosa to 10% rose. This is referred to as "extending" the rose fragrance. This may be done to compensate for chemotype, e.g. Bulgarian distilled rose oil is naturally low in phenylethanol, and Ukrainian or Russian rose oil is naturally high in phenylethanol. Pure rose oil should not be used directly on the skin, as it can cause allergic reactions such as red skin and spots. Rose oil Rose oil (rose otto, attar of rose, attar of roses or rose essence) is
Attar of Nishapur the natural sciences. According to Edward G. Browne, Attar as well as Rumi and Sana'i, were Sunni as evident from the fact that their poetry abounds with praise for the first two caliphs Abu Bakr and Umar ibn al-Khattāb - who are detested by Shia mysticism. According to Annemarie Schimmel, the tendency among Shia authors to include leading mystical poets such as Rumi and Attar among their own ranks, became stronger after the introduction of Twelver Shia as the state religion in the Safavid Empire in 1501. In the introductions of "Mukhtār-Nāma" () and "Khusraw-Nāma" (), Attar lists the titles