You should never use big words on parts salespeople. Employers usually pick the people with the minimal amount of skills for that job.
The MoS2 dry lube is often available in automotive suppliers in pressurised cans as a spray-on dry lubricant for doorlocks and cables.
You don't have to specifically use Moly-Mist, I just pulled up that site link because it was informative, and their product appeared to fill the bill nicely.
It's a sad fact of life that often an informative website shows a useful product, that no-one stocks locally.