Heads up about that online 'master class' for advanced chemical peels

I just dropped $450 on a digital course that promised to teach the latest techniques for medium-depth peels, you know, the kind you need extra training for. The sales page made it sound like you'd get hours of real client footage and step-by-step mixing guides. What I actually got was basically a rehash of the basic safety info from esthetics school, plus a slideshow of stock photos. The 'expert' instructor never even showed their face or gave their real name, which feels shady now. I spent a whole evening going through it hoping to find something new, but it was a total bust. Honestly, I could have learned more from a free webinar or just asking my old teacher. Has anyone found a legit, hands-on training for this stuff that's actually worth the cash?