Petitgrain is produced by steam distillation of the leaves and twigs of the bitter orange tree (the blossom of which gives neroli oil). Petitgrain is great for treating depression, being particularly useful for anxiety, insomnia and migraines (caused by stress). It is often overlooked which is unfortunate as it is extremely beneficial. Useful for the treatment of congested, oily skin and can also be used to treat fluid retention caused by PMS and digestive problems. Blends well with rosemary, neroli, grapefruit juniper, fennel and lavender.