Essential oil is extracted by steam distillation of selected oleo gum resin. The young trees furnish the most valuable gum, the older yielding merely a clear, glutinous fluid, resembling coral varnish. To obtain the Frankincense, a deep, longitudinal incision is made in the trunk of the tree and below it a narrow strip of bark 5 inches in length is peeled off. When the milk-like juice which exudes has hardened by exposure to the air, the incision is deepened. In about three months the resin has attained the required degree of consistency, hardening into yellowish 'tears.' The large, clear globules are scraped off into baskets and the inferior quality that has run down the tree is collected separately. The season for gathering lasts from May till the middle of September, when the first shower of rain puts a close to the gathering for that year.
Properties - Anti-inflammatory, antiseptic, astingent, carminative, cicatrizant, cytophylactic, digestive, diuretic, emmenagogue, expectorant, sedative, tonic, vulnerary.
Cautions - non toxic, non-irritant, non-sensitizing.