New UXP Panels (Plugins)
In Photoshop, navigate to Plugins and select Beauty Retouch, MUA Retouch and/or Pixel Juggler.
If you don't see the UXP panels under Plugins in Photoshop, please open the Creative Cloud app, and navigate to Stock & Marketplace > Plugins > Manage plugins - you should see all of your installed UXP panels here.
If you don't see them here, you will need to install your panels following the installation instructions relevant to your purchased panels: Installation Guides.
Old Legacy Panels (Extensions)
In Photoshop, navigate to Window > Extensions (legacy) and select Beauty Retouch, MUA Retouch, and/or Pixel Juggler.
If you don't see the RA Panels titles in the Windows > Extensions menu, navigate to Preferences > Plug-ins in Photoshop to ensure that the Load Extension Panels option is checked (see screenshot below).
Be sure to restart Photoshop for the preference changes to take effect.