One of the most effective ways of using facebook ads are re-targeting. You might not have enough trafic on your site for it to make a big difference yet, but it's worth setting up. Also, if you want to do a "boosted" post on your page, an effective (but a bit shady) way is to first spend 5$ on a country like the philippines. People there are happy to like whatever, and the clicks are super cheap. After that, you boost to your real target audience and it works better because fb algorithm sees all that "engagement" as a good sign and even pushes it organically more.

seconded what KB said. it's a pain, but split up your budget into as many segments as you can, while still keeping a statistically significant sample size. The narrower your targeting, the better and you'll need to do a lot of testing. Men/women respond to very different things in my experience, that's the first split in your ads I'd do. Run the exact same 2 ads and target men and women separately and you'll see a big difference in data usually.

For your targeted add, try to add an age range of 35-65, college education, and 100k+ salary? Probably very expensive clicks tho, it's a premium market....

Edit: Influencer marketing is something i think would work wonders for a company like yours. Harass all tech big names and offer a free procedure or something until you can make the headlines with "Elon Musk froze his stem cells". Easier said than done of course.