Protein Protectant PF-8 (Protein Stabilizer) possesses both hydrophilic and hydrophobic structures. Through the affinity of its different molecular segments for the respective phases, it is recognized by both phases as a constituent. The molecules arrange themselves at the interface between the two phases, effectively causing the surface of each phase to transition into the molecular interior, thereby reducing surface tension.Protein Protectant PF-8 can reduce protein-protein interactions and enhance protein stability. Its effectiveness has been validated across various products, including multiple types of antibodies, fused small molecules, proteins, and peptides.