Hexaethylene glycol monotetradecyl ether is a nonionic surfactant characterized by a hydrophilic head and a lipophilic tail. Belonging to the polyethylene glycol (PEG) ethers, it finds widespread application in various industrial and research settings. Its unique properties make it suitable for use in emulsions, detergents, and solubilizers. Particularly valuable in membrane protein studies, it stabilizes and dissolves proteins for structural analysis techniques. Additionally, due to its moisturizing and emulsifying capabilities, Hexaethylene glycol monotetradecyl ether is utilized in personal care and cosmetic products.