Best supplement for increase Blood flow

Yes yes I realise that lots of people have discussed this in other forums, I just want to know about people actual experiences with different substances.

What has worked?
What hasn’t?

If you tried more than one, which worked best?

Any side effects?

Etc

Thanks for your help

I wonder if you have you visited supplements forum here. There are lots of discussions on many supplements in that forum. You can start with Supplements