Not sure there really are any?? Plenty of ice to start with on box rest. Follow vets rehab programme. Maybe arc equine might help though there is no substitute for time.
Forage Plus do a supplement called Jiaogulan which might work. It is a Chinese herb used in the treatment of laminitis to help improve blood flow which is also beneficial for damaged ligaments and tendons that often don’t receive a good supply. It has to be fed with another supplement but if you have a look at the website it explains it far better than I can.