This stuff is great! Just a few drops will last forever. No more getting greasy, smelly valve oil all over your clothes, or the floor. No more asking anyone if you can borrow their valve oil when your valves start to stick, and your case is in the other room, and you have about 30 seconds to oil your valves before your next cue. Six weeks is no exaggeration, and I believe I've gone longer than that without touching the valve oil. I can't sing their praises loud enough. The only drawback is you look like a jerk when someone asks to borrow your valve oil and you have no time to explain that they would have to completely clean their instrument of any traces of other valve oil products before using your oil, or their valves would gum up terribly!

Alysin is the best stuff. When I have to put my horns up for long period of time, it stays just like I put it on the first time. The price is great.

One application provides lasting smoothness! This is by far the most effective valve lube I has ever used.

I've been using this stuff for two years. Great stuff. I was using "Fast" brand, but had to reapply almost every time I played. Alisyn lasts for weeks, and a little dab'l do ya. There may be "faster" oils out there, but I'd rather have an oil that I know won't dry out at the wrong time, and it's always the wrong time, right? If you make the switch to Alisyn, be sure to do a 100% thorough cleaning and removal of all traces of the valve oil you previously used.

My repair guy suggested Alisyn synthetic for my euphonium. Bingo! It keeps going on and on and gives the valves a more solid feel.