There was a wonderful 10min video that was once on YouTube but was deleted due to Eli Lilly. It was titled
"How to Reconstitute Retatrutide | Step-by-Step Guide to Filtering Into a Pen Cartridge" (Peptide Critic, Nov 11, 2025, 10:05)
https://www.youtube.com/watch?v=Bdh3NTir03w

It was a wonderful video and I was very sad to see that the whole channel was wiped from YouTube. Can you please re-upload it here?