Abstract: Polyglycerol esters of natural oils fatty acids, which can be from a large variety of sources, e.g., olives, and of castor seed, which can be, e.g., polyricinoleic acid, which have water-in-oil emulsifier properties, processes of preparing the above compounds having water-in-oil emulsifier properties and the use of these polyglycerol esters as water-in-oil emulsifiers and/or dispersing agents for cosmetic, skin care and pharmaceutical formulations.

Abstract: The present disclosure relates, according to some embodiments, to a cold process emulsifier composition comprising: at least one acrylic polymer, wherein the at least one acrylic polymer is neutralized after polymerization by at least one basic solution; a hydrophobic continuous phase comprising at least one solvent, wherein the at least one solvent has a polarity index from about 3 millinewtons per meter (mN/m) to about 30 mN/m; a hydrophilic discontinuous phase comprising water; at least one emulsifier, wherein the at least one emulsifier has a hydrophilic-lipophilic balance from about 2 to about 5; and at least one inverting agent, wherein the at least one inverting agent has a hydrophilic-lipophilic balance of at least about 10; wherein the cold process emulsifier composition is configured to form a cold process oil in water emulsion when the cold process emulsifier composition is contacted with a hydrophilic continuous phase comprising at least one aqueous solvent.