Some Help with character customization(textures, body hair, eyebrow, make ups and tattoos)

thanks, for the replay.

yeah i know about it, i’m thinking in do the beards and mustaches in the same way or hair, extra meshes, my big issue is really in the “others hairs” like brows, and body hair like that:https://youtube.com/watch?v=TUyMZDcnOZo
this is what i means add or change type and color of that sort of body hairs and also add things like wet, wound, tattoos to the mesh.

i’m planning in the future in making a sims style game with a heavy/complex customization system almost close as possible as for exemple Black Desert Online (what a dream!!! :D:D:D:D)
but so far my only knowledge toward it is about morph targets and clothing, now i need to learn more about that details part, of customization, which normally is worked on the texture and masks and instances this is where i’m very clueless.

but thanks for the tips anymore tips are very welcome.