I use riaflex as when I compared it to the supplement the vet supplied (synequin?) it had very similar composition. They also sell boswellia, so makes ordering easier!
As above, the benefit of joint supplements is mostly protective, so the earlier the better (bank balance permitting!).
No downsides to starting now, the core ingredients like Glucosamine, Chondroitine, MSM & HA actively protect the joints from future wear & tear and I feed all my horses a high specification joint supplement from day one regardless.
When I spoke to my vet about joint supplements she advised that with an already compromised joint the best thing is a supplement high in Boswellia as this actively targets inflammation whereas the other ingredients are more about protecting the joint going forwards.
Bestflex HA is one of the best, I did a lot of research at one point into them comparing ingredients etc. and it came out in the top 3, with PP Performance Flex Plus being the other one, but this worked out extortionately expensive to feed.
I’ve used Rowen Barbury Supple Plus for the last year and like it a lot, it has all the key ingredients plus Bosweilla and it’s £32 a kg so very affordable
