LED Light Therapy: What Each Colour Does and When to Use It
- Greta Ryan

- Feb 9
- 4 min read
We don't offer LED light therapy at Skin Ritual, but we do believe in educating clients on evidence-based technologies commonly used alongside advanced skin treatments.
Understanding how LED works - and when it’s most useful - helps you make informed decisions about your skin journey.
What Is LED Light Therapy?
LED (Light Emitting Diode) Light Therapy uses specific wavelengths of light to interact with the skin at a cellular level. LED is non-invasive, painless, and does not damage the skin barrier.
Different colours of LED light penetrate the skin at different depths, each targeting specific concerns such as inflammation, acne, healing, or skin rejuvenation. For this reason, LED is often used as a supportive treatment, rather than a standalone corrective solution.
LED Light Therapy is commonly recommended for all skin types, including sensitive skin, and is frequently used after professional treatments to calm the skin and support recovery.
Red Light Therapy: Skin Rejuvenation and Healing
Red LED light is best known for its role in skin rejuvenation and repair.
It is commonly used to:
Support collagen production
Reduce inflammation
Improve circulation
Assist with post-treatment healing
Red light is often incorporated after treatments such as chemical peels or skin resurfacing to help calm the skin and promote recovery. It may also support improvements in skin texture, hydration, and overall radiance over time.
Because red light is gentle and non-irritating, it is frequently chosen for sensitive or compromised skin.
Blue Light Therapy: Acne and Bacteria Control
Blue LED light is most commonly associated with acne management.
It works by:
Targeting acne-causing bacteria on the skin
Helping reduce active breakouts
Supporting congestion-prone skin
Blue light is often used as part of a broader acne treatment plan rather than on its own. While it can help reduce bacterial activity, it does not address underlying causes such as oil production, inflammation, or skin barrier health - which is why professional guidance is important.
Yellow Light Therapy: Calming and Restoring the Skin
Yellow LED light is typically used for calming and strengthening the skin.
It is often recommended for:
Redness and sensitivity
Compromised skin barriers
Post-treatment recovery
Yellow light is commonly used after treatments like peels to help reduce visible redness and support the skin’s natural healing processes. It is well suited to sensitive or reactive skin types.
Near-Infrared Light: Deep Repair and Recovery
Near-infrared light penetrates deeper into the skin compared to visible LED wavelengths.
It is often used to:
Support cellular repair
Improve elasticity
Enhance healing after advanced treatments
Near-infrared light is commonly included in professional LED devices as part of recovery-focused protocols rather than cosmetic treatments alone.
When and How LED Light Therapy Is Used
LED Light Therapy is typically used in one of two ways:
As a standalone supportive treatment for calming, acne management, or skin maintenance
As an add-on after professional treatments such as chemical peels or advanced facials
In clinical settings, LED is often recommended once or twice weekly for a set period, depending on skin goals. However, LED works best when combined with treatments that actively improve skin function and structure.
At Skin Ritual, our focus is on clinically proven treatments such as BioRePeel, Vitamin A peels, and customised skin plans that deliver long-term improvements - with supportive technologies used where appropriate.
👉 Learn more about our approach to skin health here: Treatment Plans
Aftercare and Ongoing Skin Benefits
LED Light Therapy requires little to no downtime. After treatment, it’s generally recommended to:
Keep the skin hydrated
Wear SPF daily
Avoid aggressive exfoliation for 24–48 hours if used after a peel
While LED can support skin comfort and recovery, long-term results depend on consistent skincare, professional treatments, and a personalised plan.
Why LED Light Therapy Is Often Used in Skin Clinics
LED Light Therapy is valued because it is:
Non-invasive and gentle
Suitable for most skin types
Helpful for calming and recovery
Easily combined with other treatments
However, LED should be viewed as supportive, not corrective. The most meaningful skin changes come from treatments that actively stimulate renewal and address underlying skin function.
Frequently Asked Questions
How often should LED Light Therapy be done?
In professional settings, LED is often recommended one to two times per week for a short course, depending on the skin concern. Frequency varies based on skin type and goals.
What colour LED light is best for acne?
Blue LED light is most commonly used for acne because it targets acne-causing bacteria. It is usually combined with other treatments for best results.
Can LED Light Therapy be done after a peel?
Yes. LED is often used after treatments like chemical peels to calm the skin and support healing.
How long do results from LED treatments last?
LED supports skin function rather than creating permanent change on its own. Results are best maintained when combined with professional treatments and ongoing skincare.
Is LED Light Therapy suitable for sensitive skin?
Yes. LED is generally well tolerated and is frequently used for sensitive or post-treatment skin.
What’s the difference between red and blue LED light?
Red LED focuses on healing, inflammation reduction, and rejuvenation, while blue LED targets acne-causing bacteria.
Final Thoughts
LED Light Therapy can be a useful supportive tool in professional skin treatment plans - particularly for calming, recovery, and acne management. However, it works best when paired with treatments designed to actively improve skin health and function.
At Skin Ritual, we prioritise evidence-based treatments and personalised plans that deliver meaningful, long-term results.
👉 Book a skin consultation to find the right approach for your skin.



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