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Dihydroxyacetone, recognized as DHA, is a common additive used in spray tans responsible for providing pigmentation to the skin similar to a UV tan via the set of mechanisms known as the Maillard Reaction. When exposed to UV light, chemicals may experience reduced stability and form free radicals, reactive species commonly associated with toxicity. In order for spray tans to be considered safe by Health Canada, DHA should remain stable when irradiated by UV light. This report aims to determine whether DHA is capable of exhibiting signs of toxicity when exposed to UV light by assessing the literature examining DHA stability in the presence of UV light. While the evidence presented suggests a potential source of toxicity induced by UV-degraded DHA, further studies must be conducted to examine the correlation between the concentration of DHA and the concentration of free radicals and hydrogen peroxide formed. This may allow for a greater understanding of its toxicity to humans and improve consumer safety. Dihydroxyacetone, reconnu comme le DHA, est un additive courant utilise dans les autobronzants charges de fournir de la pigmentation a la peau semblable a un bronzage UV via l’ensemble des mecanismes connus comme la reaction de Maillard. Lorsqu’ils sont exposes a la lumiere UV, les produits chimiques peuvent eprouver la stabilite reduite et former des radicaux libres, des especes reactives couramment associes a la toxicite. Pour que les bronzages UV soient consideres sur par Sante Canada, le DHA devrait rester stable lorsqu’il est irradie par la lumiere UV. Ce rapport a l’intention de determiner si le DHA est capable de presenter des signes de toxicite quand expose a la lumiere UV en evaluant les etudes qui ont examine la stabilite du DHA en presence de la lumiere UV. Bien que de la preuve a ete trouve suggerant une source potentielle de la toxicite induite par la degradation UV du DHA, d’autres etudes doivent etre menees pour etudier la correlation entre la concentration de DHA et la concentration des radicaux libres et le peroxyde d’hydrogene forme. Cela peut permettre une plus grande comprehension de sa toxicite au genre humain et d’ameliorer la securite des consommateurs.

An Analysis of the Toxicity of Dihydroxyacetone in Spray Tanners when Exposed to Ultraviolet Radiation