Running Facebook Ads for adult traffic is challenging due to strict policies against pornographic or suggestive content, which can lead to frequent ad disapprovals or prohibited. While targeting options may be limited, some niches that follow the guidelines may still perform well. Success requires you to use strong accounts trusted by Facebook, use techniques to hide images and wrap links carefully. If you've seen good results with TikTok and Instagram, Facebook may be worth exploring with caution, but the risks are higher.