Blue vs Red LED Light Therapy

LED light therapy has become a trusted part of many professional skincare routines, offering a non-invasive way to improve the health and appearance of the skin. Different wavelengths of light are absorbed by the skin at varying depths, and each colour of light targets specific concerns. Two of the most widely used and researched types are blue and red LED light therapy.

Whether you are struggling with breakouts, redness, or early signs of ageing, we help you choose the right light to support your skin’s natural function and healing process.

In this guide, we explore the science behind red and blue LED therapy, how each works, what skin concerns they treat, and how to know which is best for you.

What Is LED Light Therapy?

LED (light-emitting diode) therapy uses specific wavelengths of light to stimulate biological processes in the skin without causing heat or damage. The treatment is painless, relaxing and suitable for most skin types, including sensitive or reactive skin.

Different colours of light penetrate the skin at different depths. Each triggers a specific cellular response. Unlike UV light, LED does not damage skin cells. Instead, it helps regulate functions such as inflammation, cell repair, oil production and collagen synthesis.

At Eterno Clinic, we use LED therapy on its own or as part of a wider treatment plan to improve results from procedures such as microneedling, chemical peels and mesotherapy.

Red LED Light Therapy: Skin Rejuvenation and Healing

How it works

Red light, typically in the 630 to 700 nanometre range, penetrates into the dermis, the layer beneath the skin’s surface. Here, it stimulates fibroblast activity, which increases the production of collagen and elastin. These structural proteins are essential for keeping the skin firm, smooth and plump.

Red light also boosts blood circulation, bringing oxygen and nutrients to the skin cells and encouraging repair and regeneration.

Benefits of red LED therapy

• Reduces the appearance of fine lines and wrinkles
  
• Improves skin firmness and elasticity
  
• Speeds up healing after treatments such as microneedling or peels
  
• Calms redness and inflammation
  
• Brightens the complexion and improves overall tone
  

Who it is best for

Red LED is well suited to clients concerned about premature ageing, dullness, or skin recovery following in-clinic treatments. It can also help those with rosacea or mild sensitivity by supporting the skin barrier and calming inflammation.

Blue LED Light Therapy: Oil Control and Acne Management

How it works

Blue light works closer to the surface of the skin, penetrating into the uppermost layers. It targets Propionibacterium acnes (P. acnes), the bacteria that contributes to acne breakouts. When absorbed by the skin, blue light creates a reaction that destroys these bacteria without harming healthy skin cells.

It also helps regulate sebum production, which is often a key factor in persistent breakouts and oily skin.

Benefits of blue LED therapy

• Reduces active acne and inflammation
  
• Kills acne-causing bacteria
  
• Helps prevent future breakouts
  
• Balances oil production
  
• Calms red, inflamed spots and congested pores
  

Who it is best for

Blue LED therapy is ideal for clients with mild to moderate acne, oily skin or frequent breakouts. It is also beneficial for teenage skin and can be used alongside other acne treatments or prescription skincare.

Can You Combine Red and Blue LED Light Therapy?

Yes. In many cases, a combination of red and blue light therapy provides the most benefit, especially for clients with acne-prone skin that is also reactive or showing early signs of ageing.

At Eterno Clinic, we customise your LED therapy session based on your skin’s needs. A combined approach might be used to:

• Calm inflamed breakouts while also speeding up healing
  
• Prevent acne scars by supporting collagen production
  
• Strengthen the skin barrier after flare-ups or treatments
  
• Improve the overall tone and clarity of acne-prone skin
  

Treatments are comfortable, non-invasive and can be done weekly or as part of your post-treatment recovery plan.

Why Choose LED Light Therapy at Eterno Clinic?

At Eterno Clinic every session is delivered by trained skin professionals who understand how to tailor the treatment to your skin’s current condition.

Whether you are using LED to support treatment recovery, calm inflammation, manage acne or boost radiance, we ensure the right wavelength and session length for your needs.

LED is included in many of our skin treatments and it is also available as a standalone session or an add-on to facials, peels or microneedling.

Book Your Consultation

Not sure whether red or blue LED light therapy is right for you? Book a consultation at Eterno Clinic and speak with one of our experienced professionals. We will assess your skin and build a personalised treatment plan using the most effective combination of light therapy and clinical skincare.