Rose oils are extracted from the Rosa damascena (Bulgarian) and Rosa centifolia (Moroccan) also known as 'rose de mai'. Rose Otto is the essential oil steam distilled from fresh roses.

Rose concrete a solvent extraction of fresh roses. Rose absolute is extracted from the rose concrete using alcohol. Rose Otto is distilled from the Bulgarian rose or Rosa damscena. The Otto is an almost clear pale yellow liquid. When it is very cold it solidifies but it is easily warmed to liquid again.

Rose Otto smells rich, floral, warm and spicy with honey undertones. The smell of fresh roses becomes more apparent at when the Otto is diluted. Rose Otto is the most expensive extract of roses. Rose concrete from Rosa damscena is a deep orange colored mass of a jam-like consistency, can be greenish yellow.