We have a horse with very early signs of high ringbone (not in the joint). Vet recommended OsPhos and I already had his feet done with a qualified farrier. 

Looking for supplements and products that can help him in any way possible. He travels sound and it was only detected by radiographs. Thanks!  

Equibone by TLC Animal Nutrition, You can call them and ask.  They were very helpful when I called.

My gelding who I had to put down had high ringbone. Went through a couple bags of equi bone with no results. Tried osphos with no results. I did see some results with actiflex. I did inject the pastern with results. 

Movex and Equithrive 

I have had good luck with Osphos so far. The trick has been to stick to the every 6 months schedule.