Stop leak solutions for refrigeration systems are a last-gasp effort for when a leak is buried in a cold wall or some place where the entire thing would need replaced to fix it.
You know where your leak is, and it's on a hose. I would never recommend putting something into the system that could (and in all likelihood, would) restrict or plug the metering device (TXV). I know you don't want to, but just replace the hose, or add gas as needed to top it A/C system off. R134a is about $3/lb wholesale, and I'll bet your system holds less than 3 lbs.
You may do as you wish, but quick fixes almost never work.