TikTok ads and Facebook ads both have their pros. TikTok is great for reaching a younger audience and has high engagement, especially with short, eye-catching videos. If your fitness product can grab attention fast, TikTok might work better. But, Facebook has better targeting options and is more established, so you can really fine-tune who sees your ads, like males 18-40. In terms of sales, it can vary. Some people get their first sale within a few days if their ad is solid, but generally, it might take a week or two to optimize and see results. Just make sure you’re testing different creatives and adjusting based on performance.