New salts or ion pair complexes obtained by a reaction between boswellic acids or selectively enriched 3-O-acetyl-11-keto-.beta.-boswellic acid (AKBA) or 11-keto-.beta.-boswellic acid (KBA) compounds obtained through a new improved process, and an organic amine, more particularly with glucosamine. These salts or ion pair complexes are useful in nutraceuticals and in food supplements for anti-inflammatory and analgesic treatment of joints and cancer prevention or cancer therapeutic agents. These salts or ion pair complexes could also be used in cosmetic or pharmaceutical composition for external treatment of body parts or organs to treat inflammatory diseases or cancer.