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Light therapy for hair.
A non-surgical option.

Low-level light therapy may help some people with pattern hair thinning. Find out how it works and whether it fits your hair-care plan.

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Illustrative consultation scene: a dermatologist shows a patient an unbranded hair light-therapy cap.
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WHAT IS LLLT?

Light applied to the scalp.

A low-level light source above the scalp directs light towards skin containing existing hair follicles.

Low-level light therapy, often called LLLT or photobiomodulation, uses a device to deliver selected wavelengths of light to the scalp. Devices can use lasers, LEDs or a combination.

The aim is to support the activity of existing follicles. Studies have found improvements in hair density for some people with pattern hair loss, although responses and devices vary.

This is different from hair-removal laser treatment. It does not transplant follicles or replace a diagnosis of the cause of your hair loss.

IS IT FOR ME?

Who may benefit?

Common hair concerns including crown thinning, a widening part and increased shedding.
  1. 01

    Gradual pattern thinning

    Most research concerns male or female pattern hair loss. Your dermatologist checks whether that is the reason for your thinning.

  2. 02

    Existing follicles to support

    This approach works with the hair follicles already present. It cannot provide new follicles in a scarred area or offer the coverage of a hair system.

  3. 03

    A routine you can maintain

    Regular use over months is usually needed. Consider the device instructions, your schedule and the plan for reviewing progress.

  4. 04

    A health and medicine check

    Tell your doctor about scalp disease, light sensitivity and all medicines. Suitability and precautions depend on your health and the specific device.

BENEFITS AND LIMITS

What can light therapy offer?

Treatment without injections

Light is applied from outside the scalp. The treatment itself does not involve collecting blood or moving hair grafts.

An option within a wider plan

It may be considered alongside other care for pattern hair loss. Your doctor can help decide whether adding it is useful for you.

Gradual, variable improvement

Some people see thicker-looking hair, while others see little change. Regular photographs help judge whether the approach is worthwhile.

OUR PROCEDURE

How treatment works.

STEP 01

Check the cause and choose the device

  • Assess the scalp

    Your dermatologist looks at the thinning pattern and may suggest tests if the cause is unclear.

  • Agree a practical plan

    Discuss the device, its intended use and evidence, the schedule and any eye-protection instructions. Do not assume that all red-light devices are equivalent.

A scalp examination with a magnifying lens.
STEP 02

Use the device as directed

  • Position it correctly

    The scalp is exposed to the device in the way described by its instructions. Requirements differ between caps, combs and clinic systems.

  • Keep to the prescribed exposure

    Follow the agreed duration and frequency. Extra time or a stronger setting is not automatically more effective.

  • Report discomfort

    Tell the clinician about irritation, headache, unusual heat or any unexpected symptom. Avoid looking directly into the light source.

Light directed towards existing scalp follicles.
STEP 03

Continue care and review progress

  • Follow your hair-care plan

    Continue any other care as directed. Ask before changing prescribed medicines or combining the device with additional treatments.

  • Compare progress over months

    Use photographs with consistent lighting and hair positioning. Your doctor can help decide whether to continue, adjust or stop if there is no useful response.

A calendar representing regular use according to the individual device plan.
WHAT TO EXPECT

Regular use and realistic goals.

A calendar showing an individual treatment routine, not a fixed session prescription.

Hair changes slowly. Light-therapy studies usually follow people for several months, so one session cannot show whether the treatment is helping.

Ongoing use may be needed to maintain benefit. Decide in advance how progress will be measured and when your plan will be reviewed.

  1. 01

    Check the evidence for the device

    The results from one studied device do not establish the same benefit for every cap or light source.

  2. 02

    Keep safety instructions close

    Follow cleaning, fitting and eye-safety guidance. Contact your clinician if treatment causes persistent irritation or other concerns.

YOUR HAIR-CARE OPTIONS

Explore other approaches.

A hair shaft and its follicle beneath the scalp.

Hair fall assessment

Understand possible causes of shedding and thinning before choosing a procedure.

Explore hair fall care
A blood sample is separated and platelet-rich plasma is used in selected scalp areas.

PRP hair treatment

A blood-derived treatment that may be considered for selected patterns of thinning.

Explore PRP
A donor follicular unit collected for transplantation.

Hair transplantation

A surgical option that moves donor follicles to selected areas of hair loss.

Explore transplantation
THE JOURNEY, IN PICTURES

Hair density & recovery results

Original before-and-after cases showing hair density improvement across the Layers network. Individual results vary.

Let’s talk about your goals

Individual results vary. Photos show specific cases and do not guarantee the same outcome. Your doctor can explain what may be possible for you.

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IN OUR PATIENTS’ WORDS

Patient reviews

Related hair-care experiences at Layers, including PRP, GFC and thinning care. These are not light-therapy-specific reviews.

MEET THE PEOPLE BEHIND YOUR CARE

Meet our doctors

FAQs

Common questions

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01Is this the same as laser hair removal?

No. Hair-growth light therapy uses different devices and settings from laser hair removal. Never use a hair-removal device to try to grow scalp hair.

02Will it work for all hair loss?

No. Evidence is strongest for selected cases of pattern hair loss. Sudden shedding, patches, inflammation or scarring need a diagnosis and may require different treatment.

03Can I use a cap at home?

Some devices are designed for home use. Ask your dermatologist about the intended use, evidence and safety instructions for the exact device before starting.

04How often should I use it?

The schedule depends on the device and your plan. Follow those instructions rather than copying another person’s routine. More exposure is not automatically better.

05Does light therapy hurt?

It is generally well tolerated and does not involve injections. Irritation or other symptoms can still occur. Stop and seek advice if you develop unexpected discomfort.

06Can I combine it with other hair treatments?

Sometimes. Your dermatologist can advise whether adding it to medicines or another treatment makes sense for your diagnosis and scalp health.

07Does it replace a hair transplant?

No. It aims to support existing follicles. Transplantation moves follicles from a donor area and has a different role in hair restoration.

BOOK A CONSULTATION

Understand your hair loss.
Choose your next step.

Talk with our team about your scalp, your goals and the care that may suit you.

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Illustrative consultation scene: a patient and dermatologist discuss a hair-care plan.

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Patient story

Video from Layers Clinics on YouTube. Individual experiences and results vary.