Brand from Japan: AOI. 100% high quality pig hair is used. The bristles of the brushes are made of boar bristle (India) and pig bristle (China).Both bristles are made from edible animals that would otherwise be discarded.They are not killed to harvest the bristles.The oil content in the pig hair makes it easier to manage hair.The brushing effect gently stimulates the scalp and makes hair shiny and beautiful.Densely bristled bristles are soft and gentle to the scalp. 100% natural hair brush. （100% natural hair bristles (not killed to harvest the bristles).Static electricity is not generated easily and prevents hair breakage and shedding damage caused by static electricity.Brush from the hairline to the crown of the head. Massage the entire scalp from various angles. Recommended for those who prefer gentle scalp stimulation.