“I am able to read, write, and do homework during attacks.”
Ava Fulton
520 nm Green Light Therapy
$79
-
520 nm: the migraine wavelength, not a tinted bulb
-
Light you can read by, mid-attack
-
One touch. No phone, no app, no bright point to look at
-
Through an attack, or as a nightly session
Backed by science.
Peer-reviewed
Multiple published studies, 2016 to 2025, with population, dose and duration. Footnoted and linked, so you can read them yourself.
Soothe headaches in seconds.
..and that is why Zalune is the light you can stand on a migraine day.
60-day guarantee
Try it on your next migraine. If it does not work for you, send it back within 60 days for a full refund. 100% risk-free.
Description
How to use
Science and tech
Shipping and returns
Shipping rate and delivery window are shown at checkout.
60-day money-back guarantee: try it on your own migraines and send it back within 60 days if it does not work for you. Full terms in the returns policy.
520 nm Green Light Therapy
$79
The room on a bad day
When the lights hurt, the room stops being yours
-
The overhead light is the first thing to go Ordinary white light and screens can feel like too much during an attack. Most people reach for the switch.
-
Then the dark takes the rest A dark room is easier on the eyes, but you cannot read in it, work in it, or help with homework in it.
-
The plans go next Cancelling is its own kind of awful, and the people around you rarely see why. -
And the green bulb is not 520 nm A hardware-store green bulb is a white LED behind green plastic. Wrong band, wrong brightness, wrong place in the room. Your head can tell the difference.
The bad hour, and what 520 nm green light therapy does about it
In plain words
The problem
Ordinary light hurts. The overhead goes off, the blinds come down, and the room stops working. You cannot read in the dark, work in it, or get a child through homework in it.
Green is the one colour a migraine can take
Harvard researchers showed white, blue, green, amber and red light to 41 people mid-migraine. Green was the one colour that did not make the headache worse, and at low brightness it was the one that helped.¹
Why 520 nm, not just green
Red light therapy only works at the right red, 630 to 660 nm. Green light therapy only works at 520 nm. That is the wavelength the migraine studies used, low and close, from a light you sit beside. Zalune is built on it.
Why a $20 bulb does not work
A hardware-store green bulb is a white LED behind green plastic: broad spectrum, fixed brightness, on the ceiling. Not 520 nm, not narrow-band, not what the studies used. Zalune is.
What changes
The room comes back. Read, work, get the homework done, sit with the people you were about to cancel on. Through an attack, or as a nightly session.
What you get
The 520 nm light, dimmable from a glow to reading light, one-touch control on the base, and a guarantee window to try it on your own worst days.
How a session works
Placement. Brightness. Duration. Three decisions, then you get on with your evening.
Place it
Put the light on a desk or nightstand a few feet from where you will sit, so the room is lit by it and not by anything else.
Set the brightness
Start low. Bring it up until you can see what you need to see. On a bad day that may be a faint glow. On a better day, enough to read by.
Stay as long as you need
Use it through an attack, or as a nightly session. The studies ran one to two hours a day. Stay as long as you need.
What to expect, starting tonight
Tonight: a light you can finally sit near
Switch it on, dim it down, and the room is yours again. Low, green, beside you. The first light since the attack started that your head does not fight.
Noseda et al., Harvard, 2016 ¹
This week: a session every evening
Same spot, same low setting, an hour or two with the other lights off. Exactly how the studies used it: in sessions, in a dim room, alongside whatever else you take.
Martin et al., 2021 ² · Lipton et al., 2023 ³
Over the weeks: fewer dark hours
The studies followed people for four, six and ten weeks with daily diaries, and that is where the bigger changes showed up. Keep the routine. Four to ten weeks is the timeline the research used.
Mahmood et al., 2025 ⁴ · all four footnoted under The science, below
Four peer-reviewed studies, footnoted under The science below. Zalune uses the same 520 nm band.
Why 520 nm
Not just another green light. 520 nm.
Color
Harvard researchers showed five colours of light to people mid-migraine. Green was the one their heads could take.
Intensity
Same colour, wrong brightness, and it hurts. The studies used low levels. Zalune dims to a glow and comes up only as far as you want.
Exposure
A tinted bulb on the ceiling is not a session. A narrow-band light you sit beside for an hour is. The studies measured the second. Zalune is the second.
520 nm
Like 630 to 660 nm for red light therapy, 520 nm is the number that makes green light therapy work. The migraine studies used it. Zalune is built on it. A hardware-store bulb never prints it.
The science behind a light you can stand
Every colour of light sends a signal from your eye to your brain. Harvard researchers recorded those signals in people with migraine. Green sent the smallest.¹
Everyday light
- Sends your brain a bigger signal
- Makes a migraine headache worse
Zalune 520 nm
- Green sends your brain the smallest signal
- At low brightness, the one colour that helped
¹ Noseda et al., Brain, 2016. Signals recorded in migraine patients between attacks, with green at 530 ± 10 nm. Illustration, not to scale.
The science
Four peer-reviewed studies, footnoted on this page
2016
Researchers at a Harvard-affiliated lab showed white, blue, green, amber and red light to 41 people mid-migraine. Green was the one colour that did not make the headache worse.¹
2021
In a University of Arizona study, 29 people used green light (525 ± 10 nm) for one to two hours a day in a dark room for ten weeks, alongside their usual care.²
2023
Researchers at Albert Einstein College of Medicine and Harvard Medical School followed 181 lamp owners through six weeks of diaries: two-hour sessions at 520 ± 10 nm, positioned a few feet behind or above the user.³
2025
A randomized trial at Riphah International University gave people green light (525 ± 10 nm) for one hour, five days a week, for four weeks, alongside prescribed medication.⁴
Sources
¹ Noseda et al., Brain, 2016 — academic.oup.com. ² Martin et al., Cephalalgia, 2021 — pmc.ncbi.nlm.nih.gov. ³ Lipton et al., Frontiers in Neurology, 2023 — frontiersin.org. ⁴ Mahmood et al., Brain Sciences, 2025 — pmc.ncbi.nlm.nih.gov. Zalune is built on the same 520 nm band these studies used.
The same 520 nm band
Research-backed 520 nmWhat changes is the room
A light you can stand turns a dark hour into an ordinary evening.
With a light you can stand, you can:
-
Read
a book, a screen on the green filter, the homework sheet
-
Work
at the desk instead of on the couch with your eyes shut
-
Stay
in the room with the people you were going to cancel on
A usable room, for
- $79
Zalune: 520 nm green light therapy, built on the published migraine studies.
Spec for spec
520 nm vs. "green"
A $20 green bulb is not green light therapy. Here is the difference, spec for spec.
| Feature |
Zalune
|
Generic green bulb
|
Allay
|
|---|---|---|---|
| 520 nm narrow band | Yes | No — a white LED behind green plastic | Yes |
| Sits beside you, at eye level | Yes | No | Yes |
| Adjustable brightness | Yes | No | Yes |
| Made for migraine light sensitivity | Yes | No | Yes |
Free shipping
On every order in the US
No-hassle returns
60-day money-back guarantee
1-year warranty
Free replacement for any device issue
Questions people ask before they buy
Ask us anythingHow does 520 nm green light therapy work?
Colour, brightness and exposure are three different things. Harvard researchers compared five colours of light on people mid-migraine, and green was the one their heads could take. The green that works is 520 nm, the same way red light therapy only works at 630 to 660 nm. Zalune gives you 520 nm at a brightness you control, starting at a glow, from a light you sit beside.
How is this different from a green bulb?
A hardware-store green bulb is a white LED behind green plastic. It is not 520 nm, it is not narrow-band, it is not dimmable, and it lights the room from the ceiling. The studies tested a narrow band, low, beside you. That is what Zalune is built to do.
What does the research say?
Green light therapy has multiple published studies behind it, from Harvard to the University of Arizona, 2016 to 2025, all footnoted on this page with links. They tested 520 nm green light in sessions of one to two hours, in a dim room, alongside usual care. Zalune is built on the same 520 nm band.
How do I use it?
Place it on a desk or nightstand a few feet from where you will sit, turn the other lights off, and touch the base to switch it on. Start at a glow and bring it up until you can see what you need to. Use it through an attack or as a nightly session, eyes open, for as long as you need. The studies ran one to two hours a session.
How soon will I feel it?
The moment it is on. The room comes back and your head stops fighting the light, so you can read, work or sit with people instead of waiting in the dark. Over the weeks, the studies tracked people for four to ten weeks of nightly sessions, and that is where the bigger changes showed up.
Can I keep using what already works for me?
Yes. Keep everything that helps and add the light. The studies ran green light alongside people's usual care, and that is how to use it: the room gets a light you can stand, the rest of your plan stays.
Can I read, work or use a screen with it on?
Yes. Reading and homework by green light are exactly what people in the research described doing. Screens are their own light source, so turn the screen down and put the green filter on while the Zalune light does the room.
520 nm Green Light Therapy
$79
-
520 nm: the migraine wavelength, not a tinted bulb
-
Light you can read by, mid-attack
-
One touch. No phone, no app, no bright point to look at
-
Through an attack, or as a nightly session
Backed by science.
Peer-reviewed
Multiple published studies, 2016 to 2025, with population, dose and duration. Footnoted and linked, so you can read them yourself.
Soothe headaches in seconds.
..and that is why Zalune is the light you can stand on a migraine day.
60-day guarantee
Try it on your next migraine. If it does not work for you, send it back within 60 days for a full refund. 100% risk-free.
Description
How to use
Science and tech
Shipping and returns
Shipping rate and delivery window are shown at checkout.
60-day money-back guarantee: try it on your own migraines and send it back within 60 days if it does not work for you. Full terms in the returns policy.
520 nm Green Light Therapy
$79
The room on a bad day
When the lights hurt, the room stops being yours
-
The overhead light is the first thing to go Ordinary white light and screens can feel like too much during an attack. Most people reach for the switch.
-
Then the dark takes the rest A dark room is easier on the eyes, but you cannot read in it, work in it, or help with homework in it.
-
The plans go next Cancelling is its own kind of awful, and the people around you rarely see why.
-
And the green bulb is not 520 nm A hardware-store green bulb is a white LED behind green plastic. Wrong band, wrong brightness, wrong place in the room. Your head can tell the difference.
The bad hour, and what 520 nm green light therapy does about it
In plain words
The problem
Ordinary light hurts. The overhead goes off, the blinds come down, and the room stops working. You cannot read in the dark, work in it, or get a child through homework in it.
Green is the one colour a migraine can take
Harvard researchers showed white, blue, green, amber and red light to 41 people mid-migraine. Green was the one colour that did not make the headache worse, and at low brightness it was the one that helped.¹
Why 520 nm, not just green
Red light therapy only works at the right red, 630 to 660 nm. Green light therapy only works at 520 nm. That is the wavelength the migraine studies used, low and close, from a light you sit beside. Zalune is built on it.
Why a $20 bulb does not work
A hardware-store green bulb is a white LED behind green plastic: broad spectrum, fixed brightness, on the ceiling. Not 520 nm, not narrow-band, not what the studies used. Zalune is.
What changes
The room comes back. Read, work, get the homework done, sit with the people you were about to cancel on. Through an attack, or as a nightly session.
What you get
The 520 nm light, dimmable from a glow to reading light, one-touch control on the base, and a guarantee window to try it on your own worst days.
How a session works
Placement. Brightness. Duration. Three decisions, then you get on with your evening.
Place it
Put the light on a desk or nightstand a few feet from where you will sit, so the room is lit by it and not by anything else.
Set the brightness
Start low. Bring it up until you can see what you need to see. On a bad day that may be a faint glow. On a better day, enough to read by.
Stay as long as you need
Use it through an attack, or as a nightly session. The studies ran one to two hours a day. Stay as long as you need.
What to expect, starting tonight
Tonight: a light you can finally sit near
Switch it on, dim it down, and the room is yours again. Low, green, beside you. The first light since the attack started that your head does not fight.
Noseda et al., Harvard, 2016 ¹
This week: a session every evening
Same spot, same low setting, an hour or two with the other lights off. Exactly how the studies used it: in sessions, in a dim room, alongside whatever else you take.
Martin et al., 2021 ² · Lipton et al., 2023 ³
Over the weeks: fewer dark hours
The studies followed people for four, six and ten weeks with daily diaries, and that is where the bigger changes showed up. Keep the routine. Four to ten weeks is the timeline the research used.
Mahmood et al., 2025 ⁴ · all four footnoted under The science, below
Four peer-reviewed studies, footnoted under The science below. Zalune uses the same 520 nm band.
Why 520 nm
Not just another green light. 520 nm.
Color
Harvard researchers showed five colours of light to people mid-migraine. Green was the one their heads could take.
Intensity
Same colour, wrong brightness, and it hurts. The studies used low levels. Zalune dims to a glow and comes up only as far as you want.
Exposure
A tinted bulb on the ceiling is not a session. A narrow-band light you sit beside for an hour is. The studies measured the second. Zalune is the second.
520 nm
Like 630 to 660 nm for red light therapy, 520 nm is the number that makes green light therapy work. The migraine studies used it. Zalune is built on it. A hardware-store bulb never prints it.
The science behind a light you can stand
Every colour of light sends a signal from your eye to your brain. Harvard researchers recorded those signals in people with migraine. Green sent the smallest.¹
Everyday light
- Sends your brain a bigger signal
- Makes a migraine headache worse
Zalune 520 nm
- Green sends your brain the smallest signal
- At low brightness, the one colour that helped
¹ Noseda et al., Brain, 2016. Signals recorded in migraine patients between attacks, with green at 530 ± 10 nm. Illustration, not to scale.
The science
Four peer-reviewed studies, footnoted on this page
2016
Researchers at a Harvard-affiliated lab showed white, blue, green, amber and red light to 41 people mid-migraine. Green was the one colour that did not make the headache worse.¹
2021
In a University of Arizona study, 29 people used green light (525 ± 10 nm) for one to two hours a day in a dark room for ten weeks, alongside their usual care.²
2023
Researchers at Albert Einstein College of Medicine and Harvard Medical School followed 181 lamp owners through six weeks of diaries: two-hour sessions at 520 ± 10 nm, positioned a few feet behind or above the user.³
2025
A randomized trial at Riphah International University gave people green light (525 ± 10 nm) for one hour, five days a week, for four weeks, alongside prescribed medication.⁴
Sources
¹ Noseda et al., Brain, 2016 — academic.oup.com. ² Martin et al., Cephalalgia, 2021 — pmc.ncbi.nlm.nih.gov. ³ Lipton et al., Frontiers in Neurology, 2023 — frontiersin.org. ⁴ Mahmood et al., Brain Sciences, 2025 — pmc.ncbi.nlm.nih.gov. Zalune is built on the same 520 nm band these studies used.
The same 520 nm band
Research-backed 520 nmWhat changes is the room
A light you can stand turns a dark hour into an ordinary evening.
With a light you can stand, you can:
-
Read
a book, a screen on the green filter, the homework sheet
-
Work
at the desk instead of on the couch with your eyes shut
-
Stay
in the room with the people you were going to cancel on
A usable room, for
- $79
Zalune: 520 nm green light therapy, built on the published migraine studies.
Spec for spec
520 nm vs. "green"
A $20 green bulb is not green light therapy. Here is the difference, spec for spec.
| Feature |
Zalune
|
Generic green bulb
|
Allay
|
|---|---|---|---|
| 520 nm narrow band | Yes | No — a white LED behind green plastic | Yes |
| Sits beside you, at eye level | Yes | No | Yes |
| Adjustable brightness | Yes | No | Yes |
| Made for migraine light sensitivity | Yes | No | Yes |
Free shipping
On every order in the US
No-hassle returns
60-day money-back guarantee
1-year warranty
Free replacement for any device issue
Questions people ask before they buy
Ask us anythingHow does 520 nm green light therapy work?
Colour, brightness and exposure are three different things. Harvard researchers compared five colours of light on people mid-migraine, and green was the one their heads could take. The green that works is 520 nm, the same way red light therapy only works at 630 to 660 nm. Zalune gives you 520 nm at a brightness you control, starting at a glow, from a light you sit beside.
How is this different from a green bulb?
A hardware-store green bulb is a white LED behind green plastic. It is not 520 nm, it is not narrow-band, it is not dimmable, and it lights the room from the ceiling. The studies tested a narrow band, low, beside you. That is what Zalune is built to do.
What does the research say?
Green light therapy has multiple published studies behind it, from Harvard to the University of Arizona, 2016 to 2025, all footnoted on this page with links. They tested 520 nm green light in sessions of one to two hours, in a dim room, alongside usual care. Zalune is built on the same 520 nm band.
How do I use it?
Place it on a desk or nightstand a few feet from where you will sit, turn the other lights off, and touch the base to switch it on. Start at a glow and bring it up until you can see what you need to. Use it through an attack or as a nightly session, eyes open, for as long as you need. The studies ran one to two hours a session.
How soon will I feel it?
The moment it is on. The room comes back and your head stops fighting the light, so you can read, work or sit with people instead of waiting in the dark. Over the weeks, the studies tracked people for four to ten weeks of nightly sessions, and that is where the bigger changes showed up.
Can I keep using what already works for me?
Yes. Keep everything that helps and add the light. The studies ran green light alongside people's usual care, and that is how to use it: the room gets a light you can stand, the rest of your plan stays.
Can I read, work or use a screen with it on?
Yes. Reading and homework by green light are exactly what people in the research described doing. Screens are their own light source, so turn the screen down and put the green filter on while the Zalune light does the room.