What a Dermalux LED Facial Actually Does for Your Skin
Written by Becky Lumsden, founder of PURE Spa & Beauty · July 2026
LED facials are everywhere right now — on your feed, in every celebrity's routine, glowing away in the corner of the treatment room. But what does the light actually do? Here's the honest, straightforward answer: what each colour works on, what you'll feel, and how many sessions it really takes to see a difference.
The short version: a Dermalux LED facial floods your skin with clinically proven wavelengths of light. Blue (415nm) is clinically cleared to treat mild-to-moderate acne, red (633nm) is clinically cleared to soften fine lines and wrinkles by switching your collagen back on, and near-infrared (830nm) calms redness and speeds recovery. One session gives an instant glow; a course gives clearer, calmer, firmer skin. At PURE it's £45 for 30 minutes on the medical-grade Dermalux Flex MD.
First, what is an LED facial?
LED light therapy uses specific, calibrated wavelengths of visible and near-infrared light to trigger real responses in your skin cells — no needles, no heat, no acid, no abrasion. It started life in NASA research and is now a fixture in dermatology clinics and serious spas. The key thing to understand is that different colours of light do different jobs, because each wavelength penetrates the skin to a different depth and speaks to a different process. A good device lets your therapist combine them for your skin on the day.
At PURE we use the Dermalux Flex MD — a registered medical device (CE Class IIa, FDA-cleared), not a beauty gadget. That matters, and we'll come back to why.
What each light does for your skin
| Wavelength | What it works on | What you'll notice |
|---|---|---|
| Blue · 415nm | Clinically cleared to treat mild-to-moderate acne — targets the bacteria behind breakouts | Fewer breakouts, calmer, clearer skin over a course |
| Red · 633nm | Clinically cleared to soften fine lines and wrinkles — stimulates collagen and elastin | Plumper, firmer, smoother-looking skin; a lit-from-within glow |
| Near-infrared · 830nm | Reaches the deepest — calms the look of redness and supports recovery | Less visible redness, faster bounce-back after peels or needling |
Most Dermalux facials blend these. A breakout-prone skin leans on blue and near-infrared; a skin chasing firmness and radiance leans on red and near-infrared. You don't have to work this out yourself — your therapist reads your skin and sets the light accordingly.
The wins you can expect
Clearer skin. If you're fighting breakouts, blue light is the part of the treatment doing the heavy lifting — and because acne clears with consistency, this is where a course really earns its place.
Smoother, firmer skin. Red light nudges your skin to make more of its own collagen and elastin. Over a course, that reads as fine lines looking softer and skin feeling firmer and bouncier.
Radiance, fast. Even after one session, most people walk out visibly brighter and plumper — which is exactly why it's the go-to before a wedding, a shoot or a big night.
Calmer, happier skin. Near-infrared calms the look of redness and supports your skin's recovery, which is why we love it as a finish after a peel, microdermabrasion or a course of needling.
What a session actually feels like
Undramatic, in the best way. You lie back, the light comes close, and it's warm, bright and genuinely relaxing — most people describe it as a power nap for their face. A standalone session is 30 minutes (£45); added to a facial it's the glowing finale. There's zero downtime: no redness, no peeling, no "recovery". You can wear make-up and head straight back to your day.
How many sessions will you need?
One session for an instant, event-ready glow. For lasting change — clearer, calmer, firmer skin — a course of six is the sweet spot, because both acne and collagen respond to consistency. At PURE a course of six 30-minute sessions is £225 (£37.50 a session) versus £45 as a one-off. After that, many clients keep a session in the diary every few weeks as a top-up.
Why in-spa Dermalux beats a home mask
Home LED masks have their place, but they're not the same treatment. The medical-grade Flex MD delivers far higher light output and true clinical wavelengths — which is why it can be cleared to treat acne and soften lines where a low-powered mask can only promise a glow. Add a trained therapist tailoring the light to your skin, and you're in a different league. We've written a full comparison here: in-spa Dermalux vs at-home LED masks →
Ready to try it?
A single Dermalux LED session is £45 for 30 minutes, or add it to any facial. Prefer to commit to results? A course of six is £225 (£37.50 a session). Book at any of our seven Flex MD spas across Aberdeen, Edinburgh, Glasgow, Coventry and the Cotswolds.
Book an LED session from £45 → Explore Dermalux LED →
Dermalux LED facials — your questions answered
What does an LED facial do for your skin?
It uses clinically proven wavelengths of light to work on several concerns at once: blue (415nm) is cleared to treat mild-to-moderate acne, red (633nm) is cleared to soften fine lines by stimulating collagen, and near-infrared (830nm) calms the look of redness and supports recovery — for clearer, calmer, brighter, firmer-looking skin, with an instant glow after one session.
How long does it take and is there downtime?
A standalone session is 30 minutes (£45), or add LED to a facial. It's non-invasive, warm and relaxing, with zero downtime — wear make-up and go straight back to your day.
How many sessions do I need?
One for an instant glow; a course of six (£225, £37.50 a session) for lasting, clearer, firmer skin, because acne and collagen results build with consistency.
Is it safe for all skin types?
Yes — LED is gentle and suits all skin tones and types, including sensitive skin, as it uses light not heat or acid. A few situations (such as pregnancy or certain photosensitive conditions/medications) call for caution; your therapist checks before your first session.
Read next: in-spa Dermalux vs at-home LED masks → · the science of LED light therapy → · or explore the full Dermalux LED guide →.
