Keralyt 5: Beta Hydroxyacid Exfoliating Gel (2.1 oz Bottle)Get the confidence and support you need to make sure your scalp stays smooth, clean, and free of flaky residue with Keralyt 5 Anti-Dandruff Scalp Gel. These are serious maximum strength 5% salicylic acid gels, made to give focused control to specific areas with the worst scalp skin problems..