A novel amphiphilic peptide; a peptide amphiphilic lipid micelle; a process for producing a peptide amphiphilic lipid micelle comprising an amphipathic peptide and a phospholipid and optionally containing a cargo molecule; and a method of use.新規の両親媒性ペプチド;ペプチド両親媒性脂質ミセル;両親媒性ペプチドとリン脂質を含み、所望によりカーゴ分子を含むペプチド両親媒性脂質ミセルの作製プロセス;並びに、使用方法。