I have a springer that had a cruciate repair, a lurcher with anxiety, and my working dog struggles with stiffness. They each get a scoop of PEA over the course of the day. The cruciate dog, is defining the odds of needing the second one done (touch wood), the anxious one was a habitual licker and had what started as a hot spot for 15 months, and it has now cleared and healed up, and my working dog moves notably easier since he started on it.
It's a wonder powder!!