Not explicitly verboten as such but definitely a faux pas in certain parts of the business. You will get short-listed for firing if they let people go. I have after many years in my industry never seen a single NW2+ entry-level employee. 90% are perfect NW1s. You probably won't find anyone that says it matters but if it doesn't then why do they not hire any bald guys?
Anyway
@Crystalclear12 says he has lurked this forum for years but apparently he hasn't picked up much. He is just repeating the same boring arguments that dozens of others have made before him. Get ripped, bic and tan, it's all in your confidence. Urgh.
What's funny is that not a single one of these posters has been living proof of what they claim is true. None of them have actually been bald and successful with women as a single man. It's always 1) they have hair, 2) they're bald, single and not getting laid, 3) they're bald and getting laid but in a committed relationship with somebody they met while having hair.
The bald guys who have actually been successful usually have a balanced viewpoint and acknowledge their disadvantage, like
@WhitePolarBear and Marco.
This guy is a NW2.5, not even noticeable hair loss to most women, and to top it off he's married. LOL at him claiming he's "slaying".
I quintupled my partner count with a ridiculous elaborate combover yet women supposedly hate that for some reason and would prefer me bald.
What a waste of space. To those on the fence; I urge you to actually observe the lives of the bald men around you. That's what I did and it made a pretty convincing case for keeping my hair.