Sodium Hydroxide is suspected of causing asthma. This list is a compilation of various sources including those that "may cause sensitization by inhalation" and includes some agents that are identified according to the Association of Occupational and Environmental Clinics (AOEC) as asthmagens or chemicals of concern for their potential to cause asthma.
Sodium Hydroxide has been restricted in cosmetics use by the European Union.
It is not on any of GoodGuide’s lists of toxic chemicals which cause suspected or recognized health effects.
It has not been detected in human tissue or urine.