Amosan is an oral wound cleanser manufactured in Belgium and sold under the Oral-B brand, belonging to Procter & Gamble after its recent acquisition of Gillette (2005). It is used to aid in the prevention of as well as speed the recovery from canker sores, denture irritation, orthodontic irritation, and oral injuries or after dental procedures. It is distributed in a powdered form that requires reconstitution with warm water, after which it is used as a mouth rinse. It is customarily packaged in 1.7 g envelopes and sold in boxes of 20 packets each.
A recent double-blind crossover study [1] suggests that hydrogen peroxide, which is released during the use of this product, may prevent or retard colonization and multiplication of anaerobic bacteria, such as those that inhabit oral wounds.
A similar, if not identical product, also manufactured under the Oral-B brand name, called Bocasan, was once distributed in the UK, but appears to have been discontinued some time after 2003.
Amosan was discontinued in 2010 and is no longer manufactured.
Still available from some Australian websites and dentists.