A method for shaping hair by a curly hair-correction treatment or a permanent waving treatment, said method comprising a step for applying a first agent containing a reducing agent to the hair and then allowing to stand for a preset time, a step for washing off the first agent applied to the hair, a step for applying an oxidative second agent containing an oxidizing agent to the hair and then allowing to stand for a preset time, and a step for washing off the second agent applied to the hair, wherein the method for shaping hair further comprises a step for applying a gold nanoparticle-containing hair treatment solution to the hair. A gold nanoparticle-containing hair treatment solution for shaping hair, said hair treatment solution being to be applied to the hair in a treatment for shaping hair.本發明係一種捲髮矯正處理或燙髮處理之毛髮成形處理方法，其係至少具備：將含有還原劑之第1劑塗布於毛髮並放置既定時間之步驟、以及沖洗塗布於毛髮之第1劑之步驟、以及將含有氧化劑之第2劑塗布於毛髮並放置既定時間之步驟、以及沖洗第2劑之步驟之毛髮成形處理方法，且進一步具備：將含有金奈米粒子之毛髮處理液塗布於毛髮之步驟。此外，係一種毛髮成形處理用毛髮處理液，其係在毛髮成形處理中，塗布於毛髮之毛髮處理液，其係含有金奈米粒子。
