Why Greasy Hair and Dandruff Often Occur Together
Greasy hair happens when the scalp produces excess sebum. Malassezia yeast feeds on this oil and can trigger flaking. Shampoos that regulate oil while addressing fungal overgrowth can help both issues at once.
Key Ingredients to Look For
Zinc pyrithione and selenium sulfide help reduce yeast and flakes. Salicylic acid removes buildup from oily scalps. Coal tar slows skin cell turnover. Look for these actives in drugstore and clinical formulations.
How to Choose and Use the Right Shampoo
Start with a gentle clarifying shampoo if buildup is heavy, then rotate to a medicated formula with one of the ingredients above. Wash regularly, focus on the scalp, and rinse thoroughly. For more guidance on managing scalp oil and flakes, see this overview from the American Academy of Dermatology.
