Works wonderfully.
We are a new horse 4H family and just getting started showing locally. Our senior lessons horses were so overwhelmed by the excitement of the fairgrounds we were unable to ride at our first show and had to scratch. I bought Perfect Prep based on online reviews and tried it at the next show. Night and day. Calm and kids were able to handle them. Wasn't sure if it was a flux... So I tried it at the next show.... same- calm and cool. 1 more show before fair and I've already ordered enough to get us through!