"All 3 love their Rose-Hip Vital, to the point that they lick each other's faces clean after their meals"
My 3 dogs have been on Rose-Hip Vital now for approximately 3 years. I started them all on it as a preventative but now use it differently for each dog.
Digger, my black Lab is now 12.6 years old and only this winter has been showing signs of slowing down due to some arthritis. I upped his dosage to become more of a treatment and he is back to his normal goofy self, running around and keeping up with the others.
Dodger, my Jack Russell is 11.2 years old and although he has had several Mast Cell Tumors removed this year, he shows no sign of slowing down whatsoever.
My other dog Jackie, a yellow Lab is only 3.11 years old and I put her on it purely because being a Lab she didn't want to miss out on what she thought was food.
All 3 love their Rose-Hip Vital, to the point that they lick each other's faces clean after their meals just incase there is some there (there usually is on the Jack Russell). Two days a week they all get chicken frames for dinner and on those nights I just scoop out the RHV and give it to them on spoons, they gobble it down.
I don't let my dogs get fat or overweight (which is hard to do with Labs) and they all get plenty of exercise as we live just a 10 minute drive from a deserted beach. Together with regular exercise, being the correct weight for their breed and Rose-Hip Vital Canine, they are all still happy, healthy dogs.