The present invention describes improved compositions comprising aggregates having a higher adaptability, or deformability, owing to the inclusion of certain hydrophilic additives, including suitable organic ionic compounds. The disclosed compositions demonstrate superior adaptability and stability over otherwise similar compositions lacking the disclosed additives. The invention furthermore provides methods for manufacturing said aggregate preparations, wherein the resulting preparations are useful for applications such as receiving an aggregate payload with active ingredients, for biological agent delivery, and for a noninvasive targeted treatment of localised body regions at or below the application site of said aggregates.