With Crisalix you can simulate a lips augmentation using dedicated tools. If you want to perform a lips augmentation just by adding volume with fillers, you may prefer to read the topic for non-surgical procedures that can be found here.

This procedure assumes that you have uploaded the relevant photos and created the face 3D model.

1. From the floating simulator menu, select Face procedures .
   A new floating menu opens.
2. Select Lips procedures .
   A window opens detailing, with icons, the different regions of the lips that can be modified. Every icon conveniently has some arrows to indicate the specific change you can do. 
   

   If the Catalog option is enabled, you will have a second level of simulations to simulate the lips of some celebrities, the most demanded. If your simulator does not have the Catalog button, read the article Showing or hiding some functionalities on the simulator, or contact your Customer Success Manager.

    
3. Select, one by one, the different regions you want to modify.
   A slider becomes available.
4. Move the sliders carefully to the left or to the right.
   You may need to rotate the view of the face to properly see the simulated effect.
5. Use the Undo or Redo buttons at the bottom of the simulator floating menu to undo or redo the last changes respectively.
   Careful! If you have closed the procedures window, these actions will not take effect.
6. If needed, open the Curves tool for minor fine-tuning or definition of the surgery simulated. You may need to go back to the main simulation menu with the button back . See also Using the curves tool to fine-tune face simulations.
   

   Observe that the Curves tool is not compatible with any specific (anatomy-based) procedures tool. This means that, after having used it for your simulation, you will not be allowed to open any of the other tools.

    
7. Move and rotate the "after" 3D model to analyze the results of your simulated procedures.
8. Optionally, enable de volume areas tool to easily visualize the volume values. This will help you clearly identify the changes performed if they are small or subtle.
   For that, select Analysis  on the toolbar.
9. Compare the Before and the After images for better awareness of the procedures simulated. Read Comparing the Before and After images to know the steps.
10. Select Save on the top right corner to save the changes.

With Crisalix you can easily simulate a lips augmentation procedure and adapt it to your own practice and expertise.