Collagen produced accelerant, dressing material, and method for producing collagen

The object of the present invention is to provide an agentia and a face-painting material which can accelerate the generation of the collagen, and a producing method using the agentia, wherein, the raw materials of the agentia and the face-painting material which can accelerate the generation of the collagen can be easily obtained and the biosome thereof has excellent affinity. The object can be solved by the agentia which contains the polyphosphoric acids, the salt or solvate thereof as effective ingredient and can accelerate the generation of the collagen, the face-painting material containing the agentia, and a collagen producing method including the step of giving the polyphosphoric acids, the salt or solvate thereof to the human or mammal.