Jun 2025
My face doesn’t look like it has fluid
...I had a knot in my neck it has massaged it out in two days and I can see difference in my face. My face doesn’t look like it has fluid in it. I love my HIZOO
Lateshia H. Verified buyer
How it works
Why is your face still puffy when you've done everything right?
The fluid in your face drains down through your neck and out just above your collarbone. When the muscles in your neck are tight, it drains more slowly. It sits in your face overnight, and that's the puffiness you see when you wake up.
Hizoo loosens those muscles while you lie back for 10 minutes. The fluid drains, and you wake up looking like yourself again.
Free shipping in the US30 days to try it2-year warranty
10Minutes a day, lying downOver 100,000 customers
The problem
Does any of this sound like you?
If it does, a lot of what you see in the mirror is fluid. It collects in your face while you sleep, and it can only leave one way.
Why it happens- You wake up puffy, but look normal by lunchtime.
- You've lost weight, but your face hasn't changed at all.
- You're lean everywhere else, but your face still looks bloated in photos.
- You've cut back on salt and wine, and you still wake up puffy.
- You tilt the camera up before every video call.
- People ask if you're tired, even after a good night's sleep.
Why it happens
Why is your face puffiest when you wake up?
Your body is always moving a little fluid through your face. It seeps out of tiny blood vessels, and then it drains away again as lymph.1
Lymph has no heart pushing it. It moves when your muscles move, when you breathe, and with gentle pressure.1
When you sleep, you lie flat and barely move for hours. Fluid drifts up toward your head, and less of it gets pushed along.2 So it sits in your face overnight. That's why the puffiness is worst in the morning, and why it goes down once you're up and moving.
Astronauts get an extreme version of this. In space nothing pulls fluid down toward their feet, and NASA calls the result "puffy face".3
What else makes it worse?
A salty dinner or a few drinks
Both make your body hold on to water, and it often shows in your face first the next morning.4
A short night
In a sleep study, people looking at photos rated faces as having more swollen eyes after a short night.5
Sitting still all day
Lymph moves when your muscles move. Long hours at a desk or on the sofa give it very little help.1
Your period
In a study of 62 women, fluid retention felt worst on the first day of their period.6
Getting older
Research suggests lymph moves more slowly as we get older.7 A daily habit helps it along.
A tight neck
The fluid from your face drains through your neck. When the muscles there are tight, it drains more slowly.
Why your neck matters
Where it goes
The fluid in your face drains down through your neck.
Your face doesn't have a drain of its own. Fluid from your cheeks, under your eyes and along your jaw first moves into small lymph nodes in front of your ears and under your jaw. Then it runs down a chain of nodes on the side of your neck. It leaves just above your collarbone, where it goes back into your blood.8
Gray's Anatomy, the textbook doctors learn from, says all the lymph vessels of the head and neck drain to that chain on the side of your neck.8 When researchers mapped those vessels, they found them packed together on the side of the neck and spread thin across the face.10 So your neck works like the narrow end of a funnel.
300
Lymph nodes sit in your head and neck. That's about a third of all the lymph nodes in your body.9
Stop 1
Your face
Fluid collects under your eyes and along your jaw, most of all overnight.
Stop 2
In front of your ears and under your jaw
Small lymph nodes here collect the fluid first.
Stop 3 · where it slows down
Down the side of your neck
A chain of nodes runs under the long muscle that turns your head. A tight neck slows the fluid here.
Stop 4 · the way out
Just above your collarbone
The fluid goes back into your blood here. Lymphatic therapists call this spot the terminus, and it's where they start.
Why your neck matters
When your neck is tight, the fluid in your face drains more slowly.
The chain that drains your face runs right under the long muscle on each side of your neck, the one that turns your head.8 Lymph vessels are soft, and they rely on movement to keep fluid flowing.1
Most of us spend hours looking down at a phone or a laptop, and a lot of us carry stress in our neck and shoulders. Those muscles stay tight, so the fluid in your face drains out more slowly. More of it is still there when you wake up.
In one published case, a woman had lived with swelling in her face for four years. Her doctors worked on her neck first, along that muscle, and a month later the swelling had gone down a lot.11
"When you spend all day looking down at phones or screens, the SCM shortens and tightens."
Dr. Brandon Bridgeman, sports chiropractor
The SCM is that long muscle on each side of your neck.
What customers noticed
Oct 2026
Relieve stress and swollen cheekbones
I love this massager on my neck and it helps relieve stress and swollen cheekbones
Steven R. Verified buyer
What the professionals do
Before a lymphatic therapist touches your face, they start at your neck.
Every bit of fluid in your face leaves through the same spot above your collarbone. So therapists clear that spot and the sides of your neck first. Then they move the fluid in your face down toward it. If you push fluid toward a way out that's still blocked, it just backs up.
Cancer hospitals teach their patients this order,12 and so does the NHS.13 Esthetician training teaches it too.16
MD Anderson, the NHS and the other sources on this page aren't affiliated with Hizoo.
"So we always start at the neck, because right below the neck is the last place the fluid drains back to the heart."
"Empty the lymph nodes... at the neck, ears and collar bone."
"Be as light as a feather."
Doctors have measured it
In a 2025 study, 46 people had their wisdom teeth taken out. The ones who had lymphatic drainage that started at the collarbone had less swelling in their face, measured with 3D scans.14 An earlier study found that drainage on the neck alone brought swelling in the face down.15
Sources
Where these facts come from
None of these sources are affiliated with Hizoo. Each link opens the original page.
- How lymph moves: Solari E. et al., Biology, 2020. The lymph system has no central pump, and moving muscles push lymph along. Link. Cleveland Clinic, Lymphatic system. Link
- Fluid shifts toward the head and neck when you lie down: Redolfi S. et al., 2011, summarized by ScienceDaily. Link
- NASA Space Station blog, January 22, 2019. Link
- Lisa Levitt Gainsley, certified lymphedema therapist, in mindbodygreen, 2025, on alcohol and puffiness and on light pressure. Link
- Sundelin T. et al., Sleep, 2013. How faces look after a short night. Link
- White C.P. et al., Obstetrics and Gynecology International, 2011. Fluid retention across the menstrual cycle. Link
- Lymph and age: Nagai T. et al., Microcirculation, 2011, in rats. Link. Kataru R.P. et al., Frontiers in Aging, 2022, in mice. Link. Shiseido research on human skin, 2020. Link
- How the face drains: Deep cervical lymph nodes, citing Gray's Anatomy, 42nd ed. Link. Superior deep cervical lymph nodes. Link. TeachMeAnatomy, Lymphatics of the head and neck. Link
- Lymph node counts: Sakr M., Cervical lymphadenopathy, Springer, 2016. Link. Tactile Medical, Head and neck lymphedema. Link
- Pan W.R. et al., Plastic and Reconstructive Surgery, 2011. The lymph drainage pattern of the head and neck. Link
- Jay R., Rodger J., JAAD Case Reports, 2022. One patient. Link
- MD Anderson Cancer Center, manual lymphatic drainage patient video transcript. Link
- Calderdale and Huddersfield NHS, head and neck self lymphatic drainage leaflet. Link
- Ulu M. et al., BMC Oral Health, 2025. Lymphatic drainage after wisdom tooth surgery, 46 patients. Link
- Szolnoky G. et al., Lymphology, 2007. Link
- WA Master Esthetician study guide, manual lymphatic drainage. Link
- Jin H. et al., Nature, 2025. A lab study in mice on light and heavy pressure over the lymph vessels in the neck. Link
What Hizoo does
Hizoo loosens the muscles in your neck so the fluid in your face can drain.
Hizoo is a heated neck massager you lie back on. Two tall, rounded prongs cradle the back and sides of your neck, and four kneading nodes work the muscles there while the warmth helps them relax. After 10 minutes it turns itself off. Use it before bed, and you wake up less puffy.
It works the back and sides of your neck, the same place lymphatic therapists start.
Warmth up to 42°C (107°F) helps tight neck muscles relax.
The Gentle setting is the one for puffiness. In a 2025 lab study, light strokes over the neck moved more fluid through it, and heavy pressure squeezed the vessels narrow.17
You lie back for 10 minutes and it turns itself off, so it's fine to fall asleep on it.
Afterwards, 30 seconds of light strokes down the sides of your neck helps the fluid on its way. See the hand finish.
Try it for 30 days. If you're not happy with it, send it back for a refund. Free shipping in the US.
Before and after
What do three weeks of 10 minutes a night look like?
Drag the slider across each photo. Both were taken first thing in the morning, three weeks apart.
Her eyelids are less puffy, and her eyes look more open.
Woman, 47 · Morning photos 3 weeks apart
His face looks slimmer along the jaw and under the cheeks.
Man, 45 · Morning photos 3 weeks apart
Quick check
Is it puffiness, or is it fat?
Fluid comes and goes during the day, while fat stays about the same. Answer these three questions to see which one you're mostly looking at.
For an even clearer answer, take a photo the moment you wake up and another one in the afternoon, by the same window.
Is your face puffier when you wake up than it is by the afternoon?
Does it look worse after a salty dinner, a few drinks or a short night?
Does your face look sharper on some mornings than on others?
It sounds like a lot of it is fluid.
That's the part that changes during the day, and it's the part Hizoo helps drain. Use it for 10 minutes before bed, then take a photo when you wake up.
Shop HizooTry it for 30 days. If you're not happy with it, send it back for a refund.
Your face sounds pretty steady from morning to night.
That can mean less of what you see is fluid. Puffiness is also easy to miss when you see your own face every day, so check it with two photos, one when you wake up and one in the afternoon. You can also try Hizoo for 30 days and compare your morning photos.
See Hizoo
Your first few weeks
What will you notice, and when?
You feel your neck loosen the first night. Of the reviewers who said when they noticed a difference in their face, most said within about a week. After a few weeks, other people start to see it too.
The first night
Your neck feels looser.
A lot of people fall asleep before it turns off. Some see a difference in their face the next morning.
Aug 2026
A difference in my jawline the next day
This immediately worked for me. Worked through tough knots and I could see a difference in my jawline the next day.
Ellie B. Verified buyer
Aug 2026
Immediately relaxed and fell asleep
Once I read through ALL of the instructions the machine was awesome. I adjusted the settings to low and immediately relaxed and fell asleep. It has only been a few days but my neck is already feeling much better.
Alan L. Verified buyer
The first week
Your mornings look different.
Of the reviewers who said when they noticed a difference in their face, most said within about a week. Under the eyes and along the jaw come up most.
Mar 2026
My face seems less puffy
My face seems less puffy after 1 week of use.
Kristina C. Verified buyer
Dec 2025
Noticing my face slimming down
So far so good. The device itself is well-built and feels and works like an expensive product. It gets deep into your neck muscles and may not be for everyone. I bought this to help with face puffiness, and after about eight or so uses, I can say I am noticing my face slimming down. ...
Brett S. Verified buyer
A few weeks in
Other people start to notice.
Keep going with 10 minutes most days. Customers tell us this is when friends and family start asking what they've changed.
Mar 2026
My neck & face are slimmer
I absolutely love my HiZoo!! I've only been using it for a couple of weeks but I'm already feeling & seeing results. My neck & face are slimmer & I feel like my posture is better. ...
Lynn S. Verified buyer
Mar 2026
Jaw definition I wanted
Really happy with my Hizoo Head and Neck Massager. Gives me so much needed release of tension and relaxes my stiff neck. I use it everyday and like just advertised it somehow releases the lymphatic drainage along my sternocleidomastoid muscle for tgat jaw definition I wanted.
Romeo L. Verified buyer
Questions
What people ask about how it works
Can't find yours? See the full FAQ, or email support@hizoo.co. A real person on our team will answer.
How can a neck massager change how my face looks?
Your face drains through your neck. When the muscles in your neck loosen up, the fluid in your face can drain out the way it's meant to. You see the change in your face, even though Hizoo works on your neck.
How soon will I see a difference?
You'll feel your neck loosen the first night. Of the reviewers who said when they noticed a difference in their face, most said within about a week. You have 30 days to try it, which is plenty of time to see it in your own morning photos.
Isn't lymphatic drainage supposed to be really light?
Yes, and that's why you use the Gentle setting for puffiness. Gentle pressure moves lymph better than hard pressure. The light part is your 30-second hand finish: a few soft strokes down the sides of your neck after the 10 minutes.
Does it press on the front of my neck?
No. Hizoo works the muscles on the back and sides of your neck, and nothing presses on the front. It's made to be used every day, and it turns itself off after 10 minutes.
I've tried gua sha and rollers. Why would this be any different?
Rollers and gua sha work on your face. The fluid in your face still has to drain out through your neck, and your neck is where Hizoo works. If you like your roller, keep it and use it after Hizoo. And if Hizoo isn't for you, you have 30 days to send it back.
Does it work for men too?
Yes. Everyone's face drains through the neck in the same way. Men who write to us about their face often mention their jawline, and a lot of men use Hizoo after the gym or after a long day at work. See how it works for men.
What changes
After a few weeks, the face in the mirror looks like yours again.
It starts with 10 minutes on your neck before bed. Within about a week your mornings look different, and after a few weeks the change shows up in the moments you used to dread.
Your eyes look open in the morning.
You look in the bathroom mirror first thing, and the face looking back is rested and familiar.
You stop tilting the camera.
On video calls you turn the camera on and get on with the meeting.
You stay in the group photo.
You stop offering to be the one who takes the picture.
Your jawline shows again.
You can see it from the side again, in photos and in the mirror.
Someone asks if you've lost weight.
It might be your partner over breakfast, or a friend you haven't seen in a while.
You look rested at work.
You look lean in photos, and your face finally matches the work you put in at the gym.
Mar 2026
I looked like me again
For about 5 years, I've had constant, pronounced under eye puffiness. It makes me look much older than I am and has made me very self conscious. I tried everything - changing my diet, greatly increasing my water intake, cutting way back on sugars/salts, eye creams, face yoga, more sleep, allergy meds - but absolutely nothing worked. ... Within about a week, I looked like me again, and I felt so much better too. ...
Dominique B. Verified buyer
Feb 2026
The most skeptical person in the world
...Too often social media ads embellish the truth and overstate products’ values. That is NOT the case with my Hizoo massager! It provided a fantastic massage, and I definitely noticed the visible effects in my face from the lymphatic drain. I was the most skeptical person in the world until I tried Hizoo for myself. ...
Trent M. Verified buyer
Lie back for 10 minutes before bed and see how your face looks in the morning.
Or 4 interest-free payments of $49.75. Try it for 30 days. If you're not happy with it, send it back for a refund, minus $15 for return shipping. Shipping in the US is free.