Chemical preparations for medical, pharmaceutical, nutraceutical, dietetic and veterinary use, namely, for the treatment of diabetes, of infectious diseases, of skin disorders, of intestinal bacteria, and used as dietary supplements; plant extracts for medical, pharmaceutical, nutraceutical, dietetic and veterinary use, namely, in the treatment of dermatological affections, in the treatment of hair loss, hair dryness, hair brittleness, and hair fineness, and in the treatment of animal coat ha...