Dermalux MD › The Science
Explore the Science

Dermalux MD, in depth.

Dermalux MD is medical LED phototherapy — precise wavelengths of blue, red and near-infrared light that work at a cellular level to calm, heal and rejuvenate. Comfortable, relaxing, and with no downtime.

The concerns

What Dermalux MD treats

Dermalux MD is medical LED phototherapy — a Class IIa device using three precise wavelengths of light to work at a cellular level. Different wavelengths do different things: here is the science behind every concern it addresses.

Acne & Breakouts

Strong evidence

Blue light at 415nm kills acne bacteria at source

Blue light at 415nm is absorbed by porphyrins inside C. acnes bacteria, generating reactive singlet oxygen that destroys them — reducing breakouts without irritation or antibiotics.

The bacteria involved in acne naturally contain light-sensitive porphyrins. When blue light hits these, it produces singlet oxygen that destroys the bacteria from within — a highly targeted mechanism with no systemic side effects.

Red and near-infrared wavelengths add a calming, anti-inflammatory effect, settling the redness and swelling that come with active breakouts.

LED works best as part of a wider skin plan rather than in isolation.

Evidence — Clinical studies confirm significant clearing
  • Clinical studies of blue and red LED report significant reductions in both inflammatory and non-inflammatory acne lesions.
  • One controlled study showed up to approximately 77% improvement in inflammatory lesions with combined blue/red LED.
Lee et al., Lasers Surg Med, 2007; LED acne literature.
What to expect
  • Sessions: A course — often twice-weekly initially — then maintenance.
  • Downtime: None — you can return to your day immediately.
  • Timeline: Gradual clearing over the course; works best alongside good skincare.

Redness & Inflammation

Good evidence

Red and near-infrared light calm reactive skin

Red (633nm) and near-infrared (830nm) light are absorbed by the mitochondria in skin cells, boosting their energy and triggering anti-inflammatory and repair signals — soothing redness and helping irritated skin settle.

LED's anti-inflammatory wavelengths calm the skin without heat, acids or any aggression — making it a wonderfully gentle option for reactive skin.

It is often used as a soothing add-on after other treatments to support recovery and reduce post-treatment redness.

Evidence — What the research shows
  • LED phototherapy is well documented for anti-inflammatory effects and is widely used to calm skin and support recovery post-treatment.
LED anti-inflammatory and photobiomodulation literature.
What to expect
  • Sessions: A course, or as a soothing add-on to other treatments.
  • Downtime: None.
  • Timeline: Calming effect often felt quickly; builds over a course.

Rosacea-Prone Skin

Good evidence

A calming, anti-inflammatory option for sensitive skin

For rosacea-prone skin, red and near-infrared light offer a gentle, anti-inflammatory effect that can help reduce redness and soothe reactivity — without any heat, acids or irritation.

LED uses no heat and is calming by nature, making it well suited to skin that reacts to many other treatments.

It won't cure rosacea, but many people find it a soothing, supportive part of managing their skin alongside their usual care.

Evidence — What the research shows
  • LED's anti-inflammatory effects are well documented; it is widely used as a gentle adjunct for sensitive, reactive skin including rosacea-prone types.
LED anti-inflammatory literature.
What to expect
  • Sessions: A course, often ongoing for maintenance.
  • Downtime: None.
  • Timeline: Gentle, gradual calming over a course.

Healing & Recovery

Good evidence

How light accelerates the skin's natural repair

By energising cells and boosting circulation, red and near-infrared light accelerate the skin's natural healing — making Dermalux a valuable support after treatments or for compromised skin.

Light absorbed by the mitochondria increases cellular energy (ATP), which fuels repair processes, collagen production and new blood-vessel formation.

This is why LED is commonly used straight after microneedling, peels or other active treatments to soothe and support faster recovery.

Evidence — Photobiomodulation and wound healing
  • Photobiomodulation is well documented to support wound healing and tissue repair through increased cellular energy and circulation.
Photobiomodulation wound-healing literature.
What to expect
  • Sessions: Often used alongside other treatments, or as a standalone course.
  • Downtime: None.
  • Timeline: Supports faster, calmer recovery when used post-treatment.

Skin Rejuvenation

Strong evidence

A split-face clinical study: 36% wrinkle reduction, 19% elasticity improvement

Red and near-infrared light stimulate fibroblasts to produce collagen and elastin, gradually improving firmness, fine lines and radiance — a gentle, cumulative rejuvenation backed by strong clinical evidence.

By energising skin cells, these wavelengths encourage collagen and elastin synthesis and improve circulation, refreshing skin quality over a course.

Histology from the Lee SY 2007 study confirmed increased collagen density and activated fibroblasts — the same cellular mechanism behind more aggressive treatments, achieved gently.

Evidence — Measured rejuvenation
  • A split-face clinical study found significant wrinkle reduction (up to 36%) and improved skin elasticity (up to 19%) with LED.
  • Histology confirmed increased collagen and activated fibroblasts.
Lee SY et al., J Photochem Photobiol B, 2007.
What to expect
  • Sessions: A course for cumulative results; maintenance sessions sustain them.
  • Downtime: None.
  • Timeline: Radiance often noticed early; firming builds over the course.

Pigmentation

Emerging evidence

A supportive role in improving overall skin tone

LED can play a gentle, supportive role in improving overall skin tone and radiance, though it is not a primary pigmentation treatment on its own.

⚠ LED is not a standalone treatment for established pigmentation. We always build a full plan.

LED supports healthy skin function and complements targeted pigmentation care, helping overall tone and clarity.

For established pigmentation, it is usually combined with other targeted treatments — peels or topicals — rather than used in isolation.

Evidence — What the research shows
  • LED's role in pigmentation is supportive and emerging; it is best used alongside targeted treatments and consistent sun protection.
LED pigmentation literature (supportive role).
What to expect
  • Sessions: Usually alongside other treatments.
  • Downtime: None.
  • Timeline: Gradual, supportive improvement over time.

Psoriasis-Prone Skin

Emerging evidence

A gentle adjunct — never a replacement for medical care

Red and near-infrared light may help calm and support psoriasis-prone skin as a gentle adjunct, alongside — never instead of — appropriate medical management.

⚠ Psoriasis is a medical condition. We only ever offer LED as a gentle adjunct alongside proper medical care — never as a replacement.

LED's anti-inflammatory and repair-supporting effects may help soothe affected skin in some people.

It is a supportive option only — psoriasis is a medical condition that always needs proper medical oversight.

Evidence — What the research shows
  • Some evidence supports LED as an adjunct for inflammatory skin conditions; it should complement, not replace, medical care.
LED adjunct literature for inflammatory skin conditions.
What to expect
  • Sessions: As an adjunct, discussed individually.
  • Downtime: None.
  • Timeline: Variable; supportive only.
Before treatment

Preparing for Dermalux

LED is one of the easiest treatments to prepare for. A few simple steps ensure the light reaches your skin effectively.

FirstYour history

Tell us about you

  • Any photosensitivity or light-sensitive conditions.
  • Medications that may increase light sensitivity — some antibiotics, oral retinoids, St John's Wort.
  • Epilepsy — LED is steady, not flashing, but we always check.
  • Any active skin conditions or recent treatments you're unsure about.
On the dayCome bare-faced

Clean skin for best penetration

  • Arrive with clean skin, free of make-up, SPF and heavy products so the light penetrates well.
  • We'll cleanse your skin before treatment if needed.
  • No need to stop actives or sun beforehand — LED is gentle.
Light sensitivity matters

A few medications (including some antibiotics, oral retinoids and St John's Wort) can make skin more sensitive to light. Always tell us what you take, so we can keep your treatment safe and comfortable.

After treatment

Caring for your skin

Dermalux has no downtime at all — you can apply make-up and return to your day immediately. A few gentle habits help you get the most from your course.

The golden rules
  • Your skin may look subtly refreshed immediately; there's nothing to recover from.
  • Apply daily SPF as part of good skincare if you're heading outside.
  • Keep to your recommended course — LED is cumulative and results build session by session.
  • Maintain good skincare and hydration to support the benefits.
  • You can wear make-up immediately — there is genuinely no downtime.
Important information

Is it right for you?

Dermalux suits almost everyone — it is one of the gentlest treatments available. A few situations need checking first.

Not suitable

When LED isn't suitable

For your safety, treatment isn't possible in these situations.

  • Active light-sensitive conditions (e.g. lupus with photosensitivity, porphyria)
  • Currently taking strongly photosensitising medication (we'll advise)
  • A current cancer diagnosis or treatment without oncology guidance
  • Recent use of medication that makes skin highly light-sensitive
Discuss first

Worth a quick word first

These don't necessarily prevent treatment, but we need to know.

  • Epilepsy (LED is steady, not flashing — but we always check)
  • Photosensitivity or a history of light-triggered reactions
  • Medications such as some antibiotics or oral retinoids
  • Pregnancy (LED is gentle; we'll confirm comfort and suitability)
  • Any active skin condition you're unsure about
Manage beforehand

Before your appointment

Easily managed with a little planning.

  • Arrive with clean, make-up-free skin
  • Remove SPF and heavy products beforehand
  • Tell us about any new medications
  • Simply come ready to relax under the light

This is a guide to help you prepare — it isn't a diagnosis, and it isn't exhaustive. Your full history is always reviewed at consultation.

Begin with a consultation

Whether you're addressing breakouts, managing sensitivity or supporting a course of other treatments, every Dermalux plan is tailored to your skin.

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