Let me do that in case anyone cares about the science.
The treatment is a proprietary drug to inhibit IGF1 signaling. If applied early in life (puppy stage) this would reduce growth rates and result in smaller adult body size. Lots of data on life and health extension via trimming back insulin-IGF signaling. But to the best of my knowledge, this should not be particularly effective later in life.
Later in life (1 year old pet mouse, 5 year old dog, 60 year old human) you would want to treat with intermittent rapamycin or other mTOR-C1 complex inhibitors.
This works very well in male and female mice and is now being tested by Matt Kaeberlein and many colleagues in dogs and humans.
There is a vibrant community of biohackers—-mostly rididulously healthy and relative rich and well informed humans older than 40, who are testing rapamycin at a mean dose of about 5 mg once per week. No marked negatives except what you would expect—somewhat less vigorous immune responses. You don’t want to take rapamycin if you are a 60-year-old kindergarten teacher!
See Matt’s site: https://mkaeberlein.com/off-label-rapamycin/