There's bad news and there's good news (or, if this article is already grossing you out, just more bad news). The good news is that Pop It Pal is still available for purchase online, through their website and retailers like Amazon. The kits costs $19.99, with refill tubes of pus going for $5.99 apiece. According to numerous "Shark Tank" blogs, the company posted a $500,000 profit in June of 2021, but there seems to be no official source for this claim. If it's true, it seems like a modest figure considering Kevin O'Leary's royalty remains in effect until he personally recoups $750,000 (this is assuming O'Leary and Pop It Pal closed their deal).
In 2020, the company behind Pop It Pal attempted to run a Kickstarter campaign for their new product, the Blackhead Buddy. It came over $500 short of its relatively small $2,000 goal. It's also worth noting that their product line has seemingly remained confined to what they brought to "Shark Tank" in 2019, despite boasting the desire and capacity to extend their offerings with products such as Blackhead Buddy and new colors of pus.
This isn't the first time a niche "Shark Tank" product failed to capitalize on the momentum from appearing on the show. Beard King — a bizarre shaving apparatus that won a deal with Lori Greiner — had a similar post-tank experience.