A micro toothed cap device with a cavity can penetrate through a hair weave to exfoliate and stimulate the scalp. The device can be used to apply medicated products directly into the hard-to-reach areas under a hair weave to easily access the scalp. The device is small enough to penetrate to the undergrowth under the plaits, cornrows and wefts, allowing the scalp to be exfoliated, cleansed and treated properly without shifting the weft out of place.
