[Problem] To provide a composition for hemostasis that can be applied uniformly to a bleeding site and exerts a high hemostatic effect. [Solution] Provided is a composition to be applied to the subject as a spray, wherein the composition is characterized in that the spray is for hemostasis, and the composition includes a self-assembling peptide, the self-assembling peptide gelling due to self-assembly when the composition is applied to the bleeding site of the subject, and the self-assembling peptide being included in the composition in a concentration having an improved hemostatic capacity in comparison to direct application.
