Fennel oil is produced by steam distillation of the crushed seeds. Fennel has a detoxifying effect on the body and is useful in treating cellulite. It has a balancing hormonal effect on the female reproductive system and is useful in treating a variety of menstrual and menopausal complaints. Also has a long use of increasing a nursing mothers milk flow. Fennel has a calming effect on the digestive system and is useful in treating nausea and flatulence. Fennel blends well with geranium, lavender, lemon, rose, ginger and black pepper.