I have hair on my aliens. I have a program called Sims4 studio.You can make clothes and hair.I downloading costome content hair or making a base game hair and make it a hat in the sims 4 studio and when I'm finished i drag it into the mods folder.and start the sims 4 ond puts the hat on a mannequin and get my alien buy the outfit.and then you have hair to your aliens
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