Miscellaneous ingredients include Galactomyces, along with oils fermented by other various microorganisms. Fermented oils are included based on their fatty acid composition. Below is a brief overview on the connection between Galactomyces and Malassezia yeasts.

The aryl hydrocarbon receptor (AHR) is a nuclear receptor that modulates the response to environmental stimuli. It has been implicated in many diseases driven by immune and inflammatory processes. ¹ AhR activation has also been identified as having a positive influence on the mediation of reactive oxygen species (known commonly as free radicals).²

Certain strains of Malassezia have been detected in diseased skin as producing potent chemicals that activate the AhR. Substantially increased AhR activation has been linked to certain skin diseases and the synthesis of highly potent AhR inducers by Malassezia yeasts could have a significant impact on skin.³

As Malassezia has already been implicated in diseased skin with excess AhR activity, those suffering from Malassezia related diseases may wish to avoid other AhR inducers as a precaution. Galactomyces fermentation filtrate is an AHR-stimulant generally used in cosmetics. Galactomyces and variations of it are included in Sezia's database.