In addition to the dozens of effects included with Adobe Premiere Pro, many effects are available in the form of plug‑ins, which you can purchase from Adobe or third‑party vendors, or acquire from other compatible applications. For example, many Adobe After Effects plug‑ins and VST plug-ins can be used in Adobe Premiere Pro. However, Adobe officially supports only plug‑ins that are installed with the application.
Any effect is available to Adobe Premiere Pro when its plug‑in file is present in the language subfolder of the Plug‑ins folder, which is in the Adobe Premiere Pro folder by default. Using the installer for a plug-in is the best way to make sure the plug-in and its related files are installed in the right place. If you purchased additional effects, purchased Adobe Premiere Pro as part of a hardware package, or removed files from the Plug‑ins folder, you may have a different set of effects than those described in Adobe Premiere Pro Help.
For a current list of third‑party plug‑ins, go to www.adobe.com/go/learn_dv_plugins.