Abstract
Aldioxa is a heterocyclic organic compound used in cosmetic products as an astringent and skin conditioning agent. The oral LD50 for mice exceeds 23 mg/kg, and 8 g/kg for rats. All of the toxicologic parameters investigated in a 94-day subchronic feeding study in rats were similar in the test and the control group. No significant macroscopic adverse results were obtained in a three generation study in which rats were fed diets containing 10% Aldioxa. A suspension containing 25% Aldioxa was not a sensitizer when applied to the shaved backs of 3 male guinea pigs, nor when 10 animals were given intradermal injections of a 2% Aldioxa suspension on alternating days for a total of 10 applications and challenged after a 10-day nontreatment period. A hydrophilic unguent containing 4% Aldioxa was neither an irritant nor a sensitizer when evaluated on 200 human volunteers. The safety of Aldioxa has not been completely documented and substantiated. It cannot be concluded that this ingredient is safe for use in cosmetic products until the appropriate needed safety data cited in the report have been obtained and evaluated.
