Senna leaf comes from a two foot high shrub native to North Africa and Arabia. Used for centuries as a laxative, senna's leaves are medicinal, but should be used modestly and under supervision. Like cinnamon, senna comes from the cassia plant family. It can be taken in tea form.
Alleviating Skin Conditions
Senna leaf contains essential oils, resin and tannin. Its acetone and ethanol content help to fight against microorganisms that can cause skin irritations such as acne.