These are unique polyalkalene glycols which have excellent stabilizing effect on emulsions. Having a high capacity to absorb water and oil, a relatively low percentage is needed in cosmetic formulations. The stabilizing effect is not obtained by thickening, allowing for low viscous stable emulsions to be achieved. As nonionic copolymers, Elfacos® ST 9 and Elfacos® ST 37 polyalkylene glycol derivatives are hydrolytic, pH and electrolyte stable over a very wide temperature range. In decorative cosmetics, they act as binders for powders and provide improved color and payoff in lipsticks and similar products.
For more information about Elfacos ST 9, please contact our technical experts. We look forward to hearing from you.