[jstarfish]

Try being more aggressive with your marketing-- don't wait for people to go to your site, go herd them there yourself.

Use your tool to scan high-profile Instagram photos and for anyone with >n degree of baldness, market hair restoration products to them. I recommend the indirect approach: subtly comment on peoples' photos with stuff like "oh man, I remember when my hair started thinning..." Don't do this to people's wedding and engagement photos unless you're trying to be Evil.

Don't even suggest they are balding, just remind them that baldness happens to people of their age and let their own vanity and insecurity do the rest. Followers will see that as well and since so many fashion themselves after influencers, you'll appeal to their insecurities too. Engage a sibling comment or two for legitimacy and then steer people to your site to check for themselves. Then you recommend hair growth solutions.

You technically could just spam every account like this, but targeting accounts where baldness is an actual threat will keep the scheme covert for longer. Attempting this on anybody with a full set of luxurious locks will blow your cover.

You could also sell your own product. Private label some Latisse sourced from India or something. That stuff is marketed for eyelash growth but would probably make hair grow on a piece of sheet metal. The retail US price is exorbitant.