The former. You shouldn't require a device unless you have major problems. Facepulling with contraptions is bad imo. Manual or with a belt/plastic bag is a lot easier and safer.

@krollic so you can do it even after puberty? Or like at the age of 15-16

You can do it at any age. As far as I can tell (relatively speaking) it's easy for teens, easier for kids and challenging for adults but still entirely possible.

/community/community/case-discussions/your-success-story/

go have a look through there. nearly all cases are over 23 y/o

No placebos for me. Last time I measured I got:

• 6 mm of intermolar width increase.
• Also from seeing my face mirror against mirror the asymmetries have gone down a bit . 
• My chin has also advanced as well.
• My cheekbones actually project now and I thought they never would.
• My forehead seems to be getting flatter and less sloped but this one I think may be because of my better posture and not any bone changes.
• My eye support has increased tremendously below and above my eyes
• My lower third has gained height
• My upper lip has advanced ahead of my lower one

Nowhere near where I want to be yet I know my face has gotten better. 

how long have you been in the game, @eddiemoney

also, how have people reacted to you that know you

Posted by: krollic

how long have you been in the game, @eddiemoney

also, how have people reacted to you that know you

Since November of last year. 

As far as people noticing , I have been seeing the same people continuously since then every day so the changes wouldn't seem apparent to them. That being said a friend I hadn't seen since November did comment that my face looked much fuller in a good way and less gaunt (I have historically had a very narrow face). 

just watch mews push swallow videos and try to focus on having great tongue posture and just as important good head posture!