To provide a hair transplantation product having low load to the environment and capable of being used practically for automobile application, etc.
The pile for hair transplantation comprises a polylactic acid fiber having 0.3-31 μm pile diameter and 0.1-3 mm pile length. The hair transplantation product comprises a pile for hair transplantation. In the hair transplantation product, a level capable of being used practically in touch, napped feeling, coloring property, etc., is obtained. A polylactic acid fiber alone or sea-island type containing other polymer as a sea component or a core-sheath type containing other polymer as a sheath component may be used as the polylactic acid fiber.
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