Why Do Eyebrows Disappear During The Super Saiyan 3 Transformation?

[Sovran Nila]

Was it ever stated as to why the eyebrows disappear during the Super Saiyan 3 transformation?

 

[Pocket-Gog~]

When the screen briefly flashes white, Goku whips out a razor and shaves. You never see it cuz its too fast

 

[Papasmurf]

Design choice. But honestly it just makes the form look uglier.

 

[Alin]

Pretty obvious to make them appear more primal and ape like.

 

[Warmmedown]

The better question is how do they grow back and how does his hair shrink when he stops being ssj3

 

[ScottyFamalam]

There's no in-universe reason, but Toriyama intended for the transformation to make Gokuu look scary. Fat Boo says that Gokuu looks scary when he first sees Super Saiyan 3. Zenoh also says that Super Saiyan 3 looks scary. Plus, Vegeeta has the same face in Ultra Ego; Gokuu nicknamed that form "Freaky Face".

But I think SS3 was modeled a bit after Oh-zaru, which also lacks eyebrows. One of Toriyama's concept sketches of SS3 featured a tail:

And we see Oh-zaru during the transformation in the anime; Gokuu even looks SS4-ish at one point (I'm pretty sure Toei got the idea to make SS4 from this):

Gokuu looks like a Neanderthal in SS3, which makes him look like he's returned to an earlier state in human/Saiyan evolution.

 

[Hector]

Mandela effect.

 

[Warmmedown]

Mandela effect how? The eyebrows aren't there.

 

[TheVocalsmith]

The eyebrows dont actually vanish

they just become flesh