Encapsulated particles comprising one or more particle cores of silicon-containing material, wherein the one or more particle cores are encapsulated in a waxy lipid shell comprising:a) two lipidic components comprising from 55% to 95% of the total encapsulated particle weight；b) a surfactant comprising from 0.1% to 5% by weight of the total encapsulated particle weight；c) a co-surfactant comprising from 0.01% to 1% by weight of the total encapsulated particle weight；d) a regulator of metastable state from 0.1% to 5% by weight of the total encapsulated particle.Also related compositions and methods.
