To provide an angiotensin-converting enzyme (ACE) inhibitory compound for one or more of the uses of pharmaceuticals, health food, and cosmetic products.SOLUTION: An ACE inhibitory compound is a decomposition product of elastin or a chemically synthesized compound corresponding thereto, with a molecular weight of 100 to 2,000 exclusive, and is represented by one of the following amino acid sequences. (VAPGVG) n[nis an integer of 1-4]; VAPGVGVAPGVG; nA[nis an integer of 2-8]; XXP[Xor X=one of amino acids represented by I, C, M, D, N, E, Q, H, K, F, Y, W]; GXX[Xor X=one of amino acids represented by A, I, S, T, C, M, D, N, E, Q, H, K, R, F, Y, W]; XAA[X=one of amino acids represented by V, I, T, C, M, N, E, H, R, F, Y, W].SELECTED DRAWING: Figure 1【課題】医薬品,健康食品,化粧品,これらのいずれか又は複数の用途で用いられるアンジオテンシン変換酵素(ACE)阻害化合物の提供。【解決手段】分子量が100から2,000未満である、エラスチンの分解物若しくはこれに相当する化学的に合成された化合物であって、以下のいずれかのアミノ酸配列で示されるACE阻害化合物。(VAPGVG)n1[n1は1~4の整数];VAPGVGVAPGVG;n2A[n2は2~8の整数];X1X2P[X1又はX2=I,C,M,D,N,E,Q,H,K,F,Y,Wのいずれかで表されるアミノ酸];GX3X4[X3又はX4=A,I,S,T,C,M,D,N,E,Q,H,K,R,F,Y,Wのいずれかで表されるアミノ酸];X5AA[X5=V,I,T,C,M,N,E,H,R,F,Y,Wのいずれかで表されるアミノ酸]【選択図】図1