SumLab Blog

SumLab Blog

Coal Tar vs. Salicylic Acid for Scalp Psoriasis: Which Shampoo Ingredient Should You Use?

by SumLab Editorial Team on Oct 19 2026
Coal tar and salicylic acid do different things for scalp psoriasis. A clear breakdown of when to reach for each — and how Tarsum® and Keralyt® fit.