How to attach a sex doll's body hair
If you are looking to implant hair, you might find this tutorial helpful:
You can use any hair, such as wig hair, human hair, or synthetic hair found in the crafts section of the stores. For a stronger hold, you can use a PVA glue.
You will need a tool like this: Amazon link.
If you need more information, you can find it at https://www.dollforum.com/forum/viewtopic.php?f=215&t=86268