Comparison

Red Light Therapy vs Genesis Laser

Red light therapy calms inflamed skin but cannot clear a visible capillary. The Genesis laser heats blood and fades fixed redness. How to pick for rosacea.
Written & medically reviewed by the Dermapedia team
At a Glance

Red light therapy can calm inflamed, reactive skin. It does not heat blood, so it will not clear a broken capillary you can see in the mirror. The Genesis laser does heat blood, and that is what fades standing redness and shrinks small vessels. It runs as a course of clinic visits, and no trial has put the two against each other.

Red light therapy
Also called LED therapy, low-level light therapy, photobiomodulation, red light mask
Genesis laser
Also called Laser Genesis, Cutera Genesis, excel V, 1064 nm Nd:YAG

What it is

LED light you can barely feel

Rows of small red and near-infrared diodes, usually 630 to 850 nm. Nothing is heated, and nothing is damaged.

A 1064 nm laser passed over the skin

The handpiece is swept back and forth in repeated passes, warming the skin gradually rather than firing at one spot.

What it aims at

Cells, not blood

The light is absorbed inside skin cells and dials down the inflammation that drives flushing and irritation.

Blood inside the vessel

The laser is absorbed by haemoglobin. The vessel heats, collapses and is cleared away by the body.

What it is best at

Calming a reactive, irritated face

Burning, stinging and the general sense that your skin is always annoyed. Best used alongside the rest of your rosacea care.

Fading fixed redness and vessels

Diffuse facial redness and fine visible capillaries, especially around the nose and cheeks.

What it will not do

It will not erase a capillary

A vessel you can trace with a fingertip is a physical structure. Non-heating light leaves it exactly where it was.

It will not stop rosacea coming back

The laser clears what is there now. The underlying tendency to flush is unchanged, so redness slowly returns.

How long until it works

Weeks of near-daily use

Most protocols are around ten minutes, most days. Stop for a month and the benefit fades.

A course of four to six visits

Spaced roughly three to four weeks apart. Change builds across the course rather than after one visit.

How long it lasts

Only while you keep using it
Months, then top-ups
Both
Neither one is a cure. Rosacea is a long-term condition, and both are maintenance rather than a finish line.

What it feels like

Warmth and bright light

You wear eye protection. There is no sting and no pain.

A building hot prickle

Heat rises over successive passes until the skin feels hot. Most people manage it without numbing cream.

Downtime

None

You can use it before work.

Pink for a few hours

Mild redness and slight puffiness that usually settles the same day. Make-up the next morning is fine.

Skin tone

No pigment target at all

Safe across every skin tone, because nothing in the light is aimed at melanin.

The safer laser for deeper tones

At 1064 nm, less of the energy is absorbed by melanin than at shorter wavelengths. That makes it one of the more forgiving vascular lasers, not a risk-free one.

Cost

One purchase, then nothing

A panel or mask is bought once. Cheap devices and expensive ones look similar and are not.

Priced per session, sold as a course

Ask for the total cost of the course, and what a maintenance visit costs after it.

The at-home or drugstore version

The home version is the product

There is no clinic version that is fundamentally different. Clinic panels are bigger and stronger, so sessions are shorter, but the mechanism is identical.

There isn't one

No home device delivers laser energy at this power. A red light mask marketed for redness is a fraction of the output and never reaches the vessel.

The two are doing different jobs

Red light therapy works on inflammation: The light is absorbed inside skin cells and quietens the inflammatory signals that make skin flush, sting and stay irritated. Nothing gets hot, so nothing gets destroyed.

The Genesis laser works on blood vessels: The light is absorbed by haemoglobin, the vessel heats up, and the body clears the damaged vessel over the following weeks. Something gets hot, and something is destroyed on purpose.

That difference decides which one you need: Redness that comes and goes with heat, alcohol or stress is inflammation. Redness that is there every day, in the same place, is vessels.

What the evidence actually shows

Red light therapy has small, mostly positive studies: They report less redness, less burning and less itching after a course of sessions. The studies are small, they use clinic-grade equipment, and consumer masks are not the same devices.

The 1064 nm laser has a longer track record for redness: Published work on this wavelength for facial redness and visible vessels goes back years, and it is used routinely in dermatology for exactly that. The Genesis brand name has less of its own published work than the wavelength does.

Nobody has run them against each other: They are not really rivals, so there has been little reason to.

If your main problem is visible vessels

A laser is the honest answer, and it may not be this one: The Genesis mode is gentle by design, which is part of its appeal. For a strong, well-defined capillary, a pulsed dye laser or the 532 nm setting on a vascular platform usually clears it in fewer visits.

Ask which setting is planned and why: A clinic that owns a vascular laser can normally offer more than one mode. Matching the mode to your problem matters more than the name on the machine.

Before you buy or book

Decide first whether your redness is flushing or fixed vessels. They need different treatments.

If you buy a panel, look for the wavelength and the output power in the specification. A device that will not state them is telling you something.

Ask the clinic how many sessions are planned, what the course costs, and what happens after it.

Keep the rest of your rosacea care going. Neither of these replaces a prescription cream that is working.

Do not book a laser within a few weeks of a sun holiday.

Related

Questions people ask

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Does red light therapy get rid of rosacea redness?
It can reduce the flushed, irritated kind of redness, and studies report less burning and stinging after a course. It does not remove a visible broken capillary, because it does not heat blood.
Is Laser Genesis better than a red light mask for rosacea?
For fixed redness and visible vessels, yes. The laser heats blood and clears the vessel; the mask does not. For a face that flares and stings but has no visible vessels, the mask may be enough.
How many Laser Genesis sessions do you need for redness?
Usually four to six, spaced about three to four weeks apart. Most people then need a top-up every few months, because the tendency to flush has not changed.
Does Laser Genesis hurt?
It builds a hot prickling feeling as the handpiece passes over the same area again and again. Most people manage it without numbing cream, and the heat stops as soon as the pass does.
Can I use a red light mask if I have deeper skin?
Yes. Nothing in red or near-infrared light is aimed at melanin, so it carries no risk of pigment burns at any skin tone.
Is Laser Genesis the same as excel V?
Not quite. excel V is a Cutera vascular laser platform, and Genesis is one gentle heating mode it can deliver at 1064 nm. The same platform can also fire at 532 nm, which is stronger on well-defined vessels.