this workflow is the one i'm using with mild changes for the kegantNAIXL checkpoint in comfyui. it contains an initial latent, an upscaler, and a face detailer, as well as a custom save node that integrates nicely with metadata preservation, a lora stacker to make lora injection easy, and a few preview nodes.

you will need to download the following files, and place them in your comfyui install, eg:

./models/ultralytics/bbox/face_yolov8m.pt

./models/sams/sam_vit_b_01ec64.pth

these can be downloaded from here:
https://huggingface.co/Bingsu/adetailer/blob/main/face_yolov8m.pt

https://huggingface.co/datasets/Gourieff/ReActor/blob/main/models/sams/sam_vit_b_01ec64.pth

if you have further questions pertaining to this workflow, you can leave a comment directly on the workflow model itself here (preferred because it may help others), or if you prefer DM me here on civit, or in the civitai discord under the same username of skyger