This can be used as a substitute for the discontinued T-Rex Hydrolife - although this is a powder instead of a Liquid. CCF is the ultimate product for emergency feeding of ANY SPECIES. The product is a mixture of selected short chain maltodextrins (derived from corn starch) and a protein concentrate supplemented with amino acids. The protein source has been designed to match the constituents of whole egg protein.The product should be made up freshly each time.Each 100g contains 361 kcal of energy and 14.4g of protein, this aims to provide 4g protein/100kcal. Made up at 1: 2, it provides 1.4kcal/ml. The osmolality is carefully regulated to ensure absorption, it should not be used more concentrated than this.