![Twist-off capsule](https://www.drugdevelopment-technology.com/wp-content/uploads/static-progressive/nri/pharma/clients/Softigel/twist%20offnew.jpg)
A twist-off capsules’ shell is composed of two pieces, a body and a cap.
The cap of a Twist-off can be removed, enabling the insertion of a measured dose. These are used for topical and oral applications.
Capsules can contain formulations with a variety of physical properties, from dry solids to non-aqueous solutions.