What it is
Malassezia species (M. restricta, M. globosa, M. furfur, etc.) are normal residents of skin that depend on lipids to grow.
They metabolize sebum into free fatty acids, some of which can disrupt the barrier and trigger an immune response in susceptible hosts.
Antifungal axes (e.g., azoles) and lipid-modulating axes target this loop from different sides.
Why it matters
It is the dominant microbial axis in seborrheic dermatitis mechanism maps.
