iZotope products are supported in Logic Pro X using the "Audio Unit" component. After running the installer for that product, you should see it available within Logic Pro's Audio Effects lane on a track. If you're unable to see or use a product try the following troubleshooting steps:
- Rescan from the Plug-in Manager.
— Open the “Plug-in Manager” from within the Preferences menu.
— Use the search box or iZotope manufacturer heading to locate the plug-in.
— Select the plug-ins that fail validation by holding the Command key (⌘) and clicking each plug-in.
— Once the plugins are selected, click “Reset & Rescan Selection” and wait for the validation to complete. This could take several minutes.
— Once validation is completed, open a plugin to verify it is working properly on your system.
- Reset Logic's cache
— In the Finder press and hold the Option key and choose Go > Library. (The Library option will only appear while holding the Option key)
— In the Finder window go into ~Library/Caches/AudioUnitCache.
— Move the files from AudioUnitCache folder to the Desktop.
— Restart the computer, then open Logic Pro X. All installed Audio Unit plug-ins will be rescanned.
If you're using RX, you can read more about setting that up, in this article.