He simply said that he was interested in conducting the experiments.
here is one clip where he said he's interested in testing Verteporfin in a completely bald area: https://youtu.be/-5yn_v6AeWw?t=1055.
I also remember it being discussed in this video, but it's too long to find the exact timestamp, maybe some other members remember the exact timestamp: https://www.youtube.com/watch?v=ydyvBRa3GI4