I don’t know if this counts as a pheromone, but babies definitely emit _something_. As a recent father, I have had numerous people remark on how wonderful babies smell after smelling my child. I can’t smell anything. People who can smell this particular smell seem very perplexed that I can’t smell it.
For serious? The top of my kids heads smelled intoxicating for the first 6-9 months. There is still a special scent but not quite the same. And I smell it on other babies, too. It’s like smelling breast milk, but emanating from the Fontainelle
I always just assumed it was some transition from vernix covered skin to skin with healthy bacteria which we distinguish as “no smell” but almost certainly has a smell. Baby skin is pretty awesome though, as alpha male as it sounds it definitely made me want extra cuddles /s