While there is some indication that presentation of dandruff increases in the winter, the cold seasons do not directly cause dandruff.[1] Rather, factors such as spending more inside in the presence of dry air and wearing a hat — which raises the temperature of one’s scalp — may promote conditions under which dandruff-promoting microbes thrive.
References
- ^Dessinioti C, Katsambas ASeborrheic dermatitis: etiology, risk factors, and treatments: facts and controversies.Clin Dermatol.(2013)