A hair thinner, or thinning shear, is a specialized hairdressing tool designed to reduce the density of hair. It features closely spaced teeth that cut individual hair strands into finer sections, resulting in a more layered and voluminous appearance.
Hair thinning has gained popularity for its ability to enhance hair texture, reduce bulk, and create a more manageable style. Historically, thinning shears were primarily used by barbers to remove excess weight in thick or coarse hair.