I've never heard of this formula, but the study results look positive: published in a peer reviewed journal and included in PubMed, so the study results look legitimate. I didn't look far enough to find out how or where one finds the stuff or how it is taken (herbal teas, pills, where can you order, etc.) but it might be worth finding it. The study results were presented in a familiar way and used standard things like 6 minute walk and CAT scores in the data analysis.