http://skeptvet.com/Blog/2015/07/update-renavast-banned-by-the-fda-due-to-illegal-claims/ excerpt from blog below, click on link for full article
Posted on July 14, 2015 by skeptvet
Last year, I wrote about a supplement marketed for dogs and cats with kidney failure, RenAvast. AT the time, the Bottom Line conclusion for this supplement was this:
The ingredients in RenAvast™ are deliberately not disclosed by the company beyond the fact that they are amino acids and some sort of peptide. Therefore, it is impossible to evaluate the plausibility of the proposed mechanisms of action or any preclinical research on these ingredients.