Just the dried herb instead of liquid like no bute/ devils relief etc. I know there is a bit of debate over long term use of dried devil claw but iv seen no negative effects in the years iv used it and my mare is now 20 yrs with ringbone and going strong. When I stoped it like I have twice before I really saw a big difference and I had to stop ridden work until it was back in her system again. Def works for my mare
I am on my second tub of vetroflex and have seen an improvement in my boy, he was previously on Riaflex which was quite good, but I think the vetrofex is working better!