The Scalp Exfoliator and Massager
Key features: Dual teeth that the brand says clear product build-up while massaging the scalp; winged design that the brand says fits all hand sizes without slipping, even in water.
Exfoliating scrubs and silicone shampoo brushes for loosening residue and flakes.

Scalp scrubs and silicone brushes are popular for loosening flakes and product build-up and many people find them pleasant to use. Good evidence that they improve scalp health is limited, so think of them as optional extras.
Listed in no particular order of merit. As an Amazon Associate I earn from qualifying purchases.
Key features: Dual teeth that the brand says clear product build-up while massaging the scalp; winged design that the brand says fits all hand sizes without slipping, even in water.
Key features: Evenly spaced silicone bristles; easy-grip handle you slip your fingers around; described as suitable for fine or thick hair.
Key features: Circular brush with extra-soft plastic pins.
Key features: Binchotan charcoal; coconut oil; microcrystalline cellulose (exfoliant); tea tree, peppermint and spearmint oils
Key features: Piroctone Olamine; Salicylic Acid (exfoliating); Green Tea Extract
Key features: Hydrogenated castor beads (exfoliant); spearmint, sweet orange and marjoram oils