It is allowed to penetrate the solution 2 having a predetermined efficacy in A skin within 1 Improved skin Te or a self-injection device for achieving cosmetic, with a space 11 for containing a solution 2 therein, a suction port 12 for sucking only air at one end, the solution 2 is discharged at the other end a housing portion 10 having an outlet 15 which is opened as is coupled to communicates with the discharge port 15 of the housing portion 10, a pumping comprise airless pump 21 for discharging the solution 2 in the up and down movement in the center Parts 20 and is characterized in that it comprises a are coupled to be communicated with the airless pump 21 of the pumping unit 20, an injection unit 30 which penetrate the discharged solution 2 skin 1 by vertical movement . stamp type of lightweight, thin, are formed in a simple structure, it is possible to reduce the manufacturing cost, it is possible to use more easy and convenient at home with inexpensive cost, and inserting the needle into the epidermis and dermal layers of the skin condition in direct solution was uniformly injected, there is an effect that exerts the greatest efficacy with minimal losses of the solution.【解決手段】肌1内に所定の効能を有する溶液2を浸透させて肌の改善又は美容を図るための自己注入器具であって、内部に溶液2を収容するための空間11を備え、一端に空気のみを吸入する吸入口12を、他端に溶液2が排出されるように開放された排出口15を備える収容部10と;前記収容部10の排出口15と連通されるように結合され、中央に上下運動で溶液2を吐出するエアレスポンプ21を備えるポンピング部20と;前記ポンピング部20のエアレスポンプ21と連通されるように結合され、上下運動で吐出された溶液2を肌1内に浸透させる注入部30と;を含んでなることを特徴とする。スタンプ型の軽量、薄型、簡単な構造で形成され、製造コストを低減でき、低廉な費用で家庭でより簡単便利に使用でき、肌の表皮層と真皮層にニードルを挿入した状態で、直接溶液を均一に注入して、溶液の損失を最小限に抑えながら最大の効能を発揮する効果を奏する。
