The present invention relates to a proteolytic extract obtained from bromelain for the treatment of connective tissue diseases. In particular, the present invention relates to a pharmaceutical composition comprising a proteolytic extract obtained from bromelain for the treatment of diseases such as Dupuytren's disease and Peyronie's disease.

The present disclosure relates to a method of producing collagen from an animal and more particularly, the present invention relates to a method for producing collagen by applying an acid and metal fluoride combination to an animal skin.

The present disclosure relates to a method of producing collagen from an animal and more particularly, the present invention relates to a method for producing collagen by applying an acid and metal fluoride combination to an animal skin.