Is stem cell injection treatment for erectile dysfunction really effective?

I was having a serious conversation with my boyfriend about this issue, and the topic of stem cell injections for erectile dysfunction came up.

I'm considering it because it seems like a more reliable method than the conventional ones. Does anyone have any information about this?

Since it's such a sensitive topic, he seems hesitant to just go to the hospital right away, haha.

I've seen reviews from people who have tried stem cell injections, and they all say they are satisfied.

I want to take good care of him so he doesn't lose confidence, but I'm worried about which hospital is trustworthy.