Styrax tonkinensis  安息香Ān xī xiāng   Benzoin resin   
- Siam Benzoin is obtained from Styrax tonkinensis, found across Thailand, Laos, Cambodia, and Vietnam- contains benzoic acid. More used in the flavor and fragrance industries, such as incense-making and perfumery because of its sweet vanilla-like aroma and fixative properties.
- Sumatra Benzoin is obtained from Styrax benzoin and Styrax paralleoneurus which grows predominantly on the island of Sumatra- contains cinnamic acid in addition to benzoic acid- more commonly used in pharmaceutical preparations.
Nature- neutral   FLAVOR: Bitter, pungent, acid   CHANNEL:  Heart, Liver, Spleen
FUNCTIONS
GROUP: Aromatic Stimulants
1. Open up orifices,[1,2] wake up spirits.
2. Promote Qi circulation,[1,2] activate Blood,[1,2] relieve pain.
INDICATIONS
1. Sudden fainting, apoplexy, abdominal pain, convulsion in children.
2. External application as astringent and antiseptic.
PREPARATIONS: Dried resin prepared as powder or pills  0.3-0.5 g.[2]


DESCRIPTION: Resin, that is tapped from at least 5 years old trees in Summer.
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.