The Protamate series offer a wide range of HLB values making them useful as primary and auxiliary nonionic surfactants. Besides their emulsification properties, the lower molecular weight PEG esters are effective pigment wetters in make-up products and solubilizers for fragrance in various personal care products. The higher molecular weight PEG esters act as viscosity boosters, opacifying agents and skin and hair conditioners for shampoos, cream rinses, lotions and creams. An important characteristic of PEG esters is that they are neither eye nor skin irritants and safe for use in baby products.