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Briogeo Scalp Revival MegaStrength+ Dandruff Relief Shampoo ($34, originally $42)

If your scalp gets extra flakey during the winter time, the Briogeo Scalp Revival MegaStrength+ Dandruff Relief Shampoo will deliver much-needed relief. The weekly shampoo treatment is formulated with salicylic acid and charcoal to help keep excess oil production at bay and deeply cleanse and exfoliate the scalp.