San VasoFlow (brand) is a multi enzyme formula containing LArginine. It is by far the best quality LA we've found. Costly yet effective.
As for which is working? Ha! Well, all or maybe one. My guess, subjective as it is, is all in combination are having a synergistic effect. Hang in there. Paul is a good example of what an outcome may be using a multimodality approach. Gotta go....