criteria for selecting pressure sensitive adhesive polymer.

Compatibilities between the adhesive system and other formulation excipients

Compatibility with skin,

Physical/chemical stability of the total formulation and components

Skin adhesion performance (initial and long-term adhesion)

Residue after removal should be minimum amount.

Non sensitive to skin

Silicones, acrylates, or polyisobutylenes are generally used as adhesive.