What is LED light therapy

LED (Light-Emitting Diode) therapy is a skincare treatment that uses specific wavelengths of light to stimulate biological processes within the skin. Unlike UV light, LED light is non-invasive, non-thermal, non-damaging, and completely safe for regular use.

Each colour of LED light targets different skin concerns, from acne to wrinkles to redness, making LED therapy a versatile, full-spectrum treatment for healthier skin.

Understanding Wavelengths and Their Functions

Different wavelengths penetrate to different tissue depths, allowing targeted treatment:

  • Blue Light (~415 nm)
    Primarily impacts the epidermis. Blue light generates a photodynamic reaction that destroys Cutibacterium acnes bacteria, reducing acne lesions without irritating the skin barrier.

  • Red Light (~630-660 nm)
    Penetrates into the dermal layer. Red wavelengths stimulate fibroblasts, increase collagen production, reduce fine lines, improve texture, and support overall dermal repair.

  • Near-Infrared (~830–850 nm)

Reaches the deepest tissue levels. Near-infrared light reduces inflammation, enhances circulation, accelerates wound healing, and supports structural integrity of the dermis.

  • Amber/Yellow Light (~605 nm) Targets superficial dermal layers. Known for reducing erythema, improving lymphatic flow, and calming reactive or redness-prone skin.

How LED light wavelength works and why it matters. How different light has different effects to the skin and penetrates in the different level by showing the skin layers and wavelength penetration

How LED Technology Works in Treatment

Here’s what happens during an LED session:

  1. Your skin absorbs the light energy.
    LED diodes emit precise wavelengths that penetrate the skin without heat or discomfort.
  2. Cells convert light into fuel.
    Light energy increases ATP (adenosine triphosphate) — the skin cell’s “energy currency.”
  3. Cellular activity increases.
    Your cells work harder to repair damage, reduce inflammation, and boost collagen.
  4. Skin begins to renew itself.
    With consistent use, you’ll see clearer, brighter, firmer, and healthier-looking skin.


These changes occur without heat, pain, or downtime, making LED therapy a safe long-term treatment.