Maybe he needs it or even sort of wants someone to buy it for him. Still, save it for an everyday present and give Dad something else on Father's Day instead: maybe a cool baseball cap, if that hair loss is really an issue.
unscented foam, $29.99 for a 1-month supply, rogaine.com
Keep the grooming gifts to things that feel more luxe and pampering than hygenic and personal, like a badger shaving brush James Bond would love.
Dad's going to want to pick out the scent himself—it's a personal thing. If you want to go the toiletry route, opt for something like this travel-sized kit, a lifesaver for last minute weekend or business trip packing.
If Dad spends a lot of time in the kitchen, it might seem like a good idea. But he'll probably be more excited by a gadget like a single-cup coffee maker or a juicer or an electric BBQ fork (the last of which is pretty much the same price as an apron).
It's an understandable thought when Dad is the definition of The Man Who Has Everything. But he'd probably want something more fun to play with in his office, then, like a toy drone helicopter or a desktop record player.