‘A Grown Man Using GATSBY Hair Wax?’ — NanJ Users Wage a Hair Care Civil War

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The story

A post reading “A grown man still using GATSBY or Mandom hair wax lol” set off a sprawling hair-care discussion on the NanJ (Livejupiter-style) board. GATSBY and Mandom are long-running staple brands mostly associated with teens and twenty-somethings, and there’s a running joke about still using them in your 30s and 40s. While plenty of users reported switching products as they aged — “I ended up with hair oil,” “I use Yanagiya pomade” — opinions split sharply over whether hard-hold wax actually harms scalp circulation and clogs pores, and the thread devolved into a fight over who had any real evidence.

What people said

1AnonymousSep 23, 2026 20:52
That's only a thing until you're pushing 30…
6AnonymousSep 23, 2026 20:54
Wait, you still HAVE hair at your age? For real?
8AnonymousSep 23, 2026 20:55
Ended up settling on Cool Grease G1
Best bang for your buck
9AnonymousSep 23, 2026 20:55
You're still using hair product at your age?
13AnonymousSep 23, 2026 21:00
Tried all kinds of stuff, ended up with hair oil
15AnonymousSep 23, 2026 21:02
Once I buzzed it all off, there was no going back
16AnonymousSep 23, 2026 21:03
Re: #1
You've got something on your chin 🥺🫵
19AnonymousSep 23, 2026 21:07
I'm 37 and I've stuck with GATSBY Moving Rubber Extreme Mat this whole time… guess that's not okay…
So what ARE you supposed to use once you hit a certain age?
20AnonymousSep 23, 2026 21:08
Like anyone on NanJ actually uses hair product
Even the ones with hair have a messy mop and never trim their eyebrows either
24AnonymousSep 23, 2026 21:10
Because eventually you won't need hair product anymore…
27AnonymousSep 23, 2026 21:12
Used to wax my hair trying to look like Mokkun (actor Masahiro Motoki), but I quit styling altogether before I turned 30
33AnonymousSep 23, 2026 21:17
Re: #27
Can't help it once you go bald
38AnonymousSep 23, 2026 21:20
I'm also pushing 40 and still slicking it down with GATSBY's hard-hold stuff,
but as I've gotten older my hair's gotten seriously stiff and won't cooperate at all
I'm guessing pomade's the answer — somebody tell me what a middle-aged guy is actually supposed to use
44AnonymousSep 23, 2026 21:28
Re: #38
Trust me on this, drop the hard-hold wax
45AnonymousSep 23, 2026 21:28
Re: #38
GATSBY's fine for an old guy like you
46AnonymousSep 23, 2026 21:28
Re: #44
I hear that sometimes, but why?
49AnonymousSep 23, 2026 21:29
Re: #46
Either you're confusing it with spray
or you're applying it wrong
56AnonymousSep 23, 2026 21:30
Re: #49
Wait, spray is bad!?
I use it to lock in my style after setting it with wax…
54AnonymousSep 23, 2026 21:30
Re: #44
I get why the stiffness makes it useless for styling,
but is there actually anything dangerous about it besides that?
59AnonymousSep 23, 2026 21:33
Re: #54
You're locking it into an unnatural position, so of course scalp circulation gets worse
64AnonymousSep 23, 2026 21:35
Re: #59
Locking hair in an unnatural position hurts scalp circulation????
What are you even talking about? There's no evidence for that
65AnonymousSep 23, 2026 21:35
Re: #59
Does it actually affect your pores?
Even facial hair you don't touch gets stiffer with age too — isn't that just body type and aging?
Though I guess if it's weakening the hair, fine, that's different
57AnonymousSep 23, 2026 21:31
It's not that your hair got coarse from aging — it's that hard-hold product wrecked it and made it frizzy and rough.
That damage doesn't come back, so if you don't want to pile on more damage and go bald, quit the hair product
61AnonymousSep 23, 2026 21:33
Re: #57
Don't put it on your scalp
Even short-term use will make you bald down the road
58AnonymousSep 23, 2026 21:32
Re: #56
That way of using it is fine
It's guys like Re: #53 trying to do it with spray alone
who end up looking like they think they're in a band
63AnonymousSep 23, 2026 21:34
Re: #58
That startled me
Thought I was gonna go bald down the line

Though with grandpa and dad both bald, guess it's only a matter of time anyway
67AnonymousSep 23, 2026 21:37
Re: #61
Don't put it on your scalp????
What are you even talking about
Styling product on your scalp doesn't make you bald
Seriously, NanJ's nothing but old men these days
If you don't know, why act like you do?
Quit spouting half-baked nonsense
71AnonymousSep 23, 2026 21:39
Re: #67
Listen
your scalp breathes
and you know what happens when you seal it up with styling product (oil), right?
That's exactly why bald guys' heads are so shiny
76AnonymousSep 23, 2026 21:42
Re: #72
Which is basically the same as putting super glue on your scalp
And these days styling products use a liposome-like mechanism to set naturally, penetrating deep into the cells — you get what that means, right?
84AnonymousSep 23, 2026 21:45
I use Yanagiya pomade though
91AnonymousSep 23, 2026 21:48
Re: #84
My dad used that green tonic in the square bottle — Yanagiya
85AnonymousSep 23, 2026 21:45
So what's an old guy actually supposed to use then
You're a working adult, you're gonna use some kind of hair product
If there's damage involved, recommend me something with as little damage as possible
98AnonymousSep 23, 2026 21:51
Re: #85
A heavier hair oil is good
Holds your style nicely and doesn't damage your hair
101AnonymousSep 23, 2026 21:54
Re: #85
You're not getting a 1,000-yen cheap cut, are you? Just ask your stylist
I mean, they always walk you through styling methods during the consultation
For a grown man a proper cut runs about 7,000 yen — if you've only ever been to cheaper salons than that, hair product is the least of your problems, nothing's gonna help
90AnonymousSep 23, 2026 21:48
In the first place, don't slather product on so thick it's getting on your scalp
100AnonymousSep 23, 2026 21:52
Re: #90
This, exactly
'Sorry, I was using it wrong' would've settled it fine
but no, gotta keep making excuses lol
that's why you go bald
94AnonymousSep 23, 2026 21:49
Re: #87
My hair's super thick and straight, so if I cut it too short it sticks up everywhere,
so I keep it as short as possible without it standing up — a safe 7:3 part with the bangs raised a bit
and lately GATSBY's stopped working for that
96AnonymousSep 23, 2026 21:50
Re: #94
Mix Cool Grease with the purple GATSBY and work it in, that's the move
102AnonymousSep 23, 2026 21:54
Re: #98
So it really is oil-based products then
I'll give that a try, thanks for the tip

Background and Key Points of This Discussion

The relationship between hair styling products and thinning hair comes up regularly even within the beauty industry, but there’s little medically established evidence that using wax or spray directly causes hair loss. The explanations flying around the thread — that “the scalp can’t breathe” or that products “penetrate via a liposome effect” — aren’t backed by rigorous cosmetic-science evidence either, and it’s worth noting the discussion proceeded with personal anecdotes and hearsay mixed in throughout. That said, stylists do point out that slathering product all the way down to the scalp, or failing to rinse it out thoroughly, can clog pores and worsen scalp conditions — so the “it’s a usage problem” point raised later in the thread was on the mark. Given that GATSBY and Mandom have long been marketed as brands for teens and twenty-somethings, the original poster’s underlying question — whether you should “graduate” from them as an adult — reflects the brands’ historical positioning.

*This article is excerpted and summarized from the 5channel (NanJ / Livejupiter) thread “A grown man still using GATSBY or Mandom hair wax lol.”

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