The absorption rate of Osteo-MAX after consumption occurs in a few hours. To see an impact on your horses movements / performance will usually take 3-14 days.
The variance in time is based on several factors:
a) the amount of HA that is being replenished
b) the severity of the problems, if any;
c) the horses disposition to feeling better
d) willingness of your horse to work harder, especially if these problems have been ongoing
e) any other underlying issues, known or not