A film forming solution usable for the manufacture of an allergen free hard capsule containing pullulan polysaccharide, a neutrally charged hydrophilic amide derived from an amino acid, a rheology modifier, a plasticizer, a chelating agent, and Q.S. amount of water. The film forming solution creates hard capsules that are dimensionally stable with a combination of mechanical strength, resistance to cracking and resiliency. The created hard capsules have a body and a cap that easily engage while producing an oxygen barrier for product contained in the allergen free hard capsules.