For the majority of us, a type of fungus – Malassezia spp. – naturally lives on our skin1.
Various natural and environmental factors such as oil glands secretions, Malassezia spp. overgrowth, individual vulnerability, and interactions between these factors, all contribute to the origin and development of dandruff and seborrheic dermatitis1.
Possible causes of dandruff & seborrheic dermatitis1,2
Malassezia spp. overgrowth
Higher numbers of Malassezia spp. relates to the appearance of the condition.
The higher the number of Malassezia spp. detected, the more severe the seborrheic dermatitis.
Oil Gland Activity
Excess rich oil production allows Malassezia spp. to thrive, leading to overgrowth.
Individual Vulnerability
Contributing factors include:
Emotional Stress
Skin Barrier Integrity
Genetics
Neurogenic Factors
Nutrition
頭皮屑最常見的原因–皮屑芽孢菌，它是一種自然存在於皮膚表面的真菌， 如果真菌過度生長，會產生更多的皮脂，使舊的皮膚細胞脫落得更快，就可看到頭皮屑。
