Question

Difference between microspheres and microcapsules

Answer 1

- A microcapsule has a liquid core and a solid shell.

- A microsphere is a matrix with an active principle dispersed inside.

Answer 2

A microcapsule has an inner core & an outer shell. The core can be either liquid (oil or water) or solid and typically contains the active ingredient while the shell is usually a polymer or wax.  

A microsphere is  a solid matrix particle & the active ingredient in the matrix is usually dissolved or melted in it before processing.