The present invention provides a container for holding a crystalline L-carnosine zinc complex, wherein the container for holding the crystalline L-carnosine zinc complex is characterized in that a portion for contacting the crystalline L-carnosine zinc complex is formed from a resin having at least one polar group, selected from the group consisting of a cyano group, a hydroxyl group, and an ester group, in the molecule.藉由本發明,可提供一種結晶性L-肌肽鋅錯合物之保存容器,其係保存結晶性L-肌肽鋅錯合物之容器,其特徵為與該結晶性L-肌肽鋅錯合物相接之部分係由在分子內具有選自氰基、羥基及酯基所組成之群組之至少1種極性基之樹脂所形成。