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Illuminating Beauty - The Potential Benefits of Light Therapy...

 


The Potential Benefits of Light Therapy on Facial Skin (main colours)




                                               (image: lumivisage.com) 




 

Light therapy colour wavelength

(measured in nanometres - nm)

 

Potential benefits 

(for facial skin)       

 

Red light typically has wavelengths ranging from 620 to 750 nm. This spectrum allows for deep penetration into the skin, reaching the dermal layers where collagen and elastin are produced.​

 

     (Image: www.zwivel.com

 

  • Collagen Stimulation: This results in improved skin elasticity and a reduction in fine lines, wrinkles and an overall improvement in the texture of the skin.

  • Anti-Inflammatory Effects: providing a reduction in conditions such as rosacea and promoting an overall uniformity in skin tone.

  • Enhanced Circulation: By improving blood flow, this promotes a healthier complexion.​

 


Yellow light operates within the 570 to 590 nm range, penetrating the skin to a depth that influences both the epidermis and upper dermis.​

 


       (image: https://peachclinics.com)

 

 

 

  • Redness Reduction: making it beneficial for conditions like rosacea and broken capillaries.​ This colour of light is particularly suitable for sensitive skin.

 

  • Skin Rejuvenation: It stimulates collagen production, contributing to the reduction of fine lines and improving skin elasticity.​

  • Lymphatic Stimulation: By promoting lymphatic drainage, yellow light helps in detoxifying the skin and reducing puffiness.​

 

 

Green light has wavelengths from 520 to 560 nm, penetrating the skin to a moderate depth, targeting melanocytes.  These are cells responsible for pigment production.​

 

 

 

  • Hyperpigmentation Reduction: Green light inhibits excess melanin production, aiding in the fading of dark spots, freckles, and age spots, leading to a more even skin tone.​

 

  • Calming Effect: It has a soothing impact on the skin, reducing redness and irritation.​

  • Skin Rejuvenation: green light contributes to a brighter and more youthful complexion.​

 

 

 

 Blue light operates within the 405 to 470 nm range. It primarily affects the epidermis, the outermost layer of the skin.

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  • Acne Treatment: Blue light has antibacterial properties and can help to regulate sebaceous gland activity by decreasing excessive oil.  Both of these advantages can help to reduce acne formation.​

 

  • Skin Calming: Blue light has a soothing effect, reducing redness and inflammation associated with acne breakouts.

 

      

Other colours

Some masks and hand-held devices include other pigments eg purple (a mixture of blue and red light).  This colour would potentially produce skin benefits associated with blue and red colours.


Integrating Light Therapy into Skincare Routines

Home devices have made this technology accessible to incorporate light therapy into your skincare routine.  To achieve the best results requires consistency (eg 2-3 times per week) plus adherence to important recommended guidelines of use.  Most light therapy masks have a built-in timer of approximately 10 minutes per colour. It is advisable to use your home device for not more than 30 minutes on the face in 1 session. For example a device with 3 colours could be for used for up to 30 mins (10 minutes for each colour or 2 colours of 20 mins or just 1 colour of 10 mins. Users need to adopt a responsible mindset when using light therapy home devices.


Targeted treatments

Most people tend to purchase a home light therapy device to work on a specific issue eg rosacea, or the desire for a more even tone.  If you are new to light therapy if would be advisable to concentrate on your primary skin concern by using the the most appropriate colour for 10 minutes per session and then after a few weeks build up 20mins (ie maybe the same colour twice or use 2  different colours to start working on a different skin issue as well as your primary skin concern (ie 1 colour after the other). It is not advisable to subject your facial skin to the same colour of light for more 30 minutes in 1 session.


Variation of results

The wavelength of each colour given in the above table is given as a range. This is because the wavelength and effectiveness on the skin may vary, possibly due to certain criteria including:
  • the brightness of the LED bulbs
  • the amount of LED bulbs
  • an individual's genetics and overall skin health. 

In light therapy clinics, clients usually sit or lie underneath devices that are unsurprisingly likely to be more powerful (eg increased intensity and amount of LED bulbs) than a home mask or device could ever claim to be. However with consistency and proper use, home light therapy devices have the potential to produce a level of positive visible results.

After using light therapy, particularly during the day-time (in order to maximise the results), use an SPF (designed for face) daily (in all weathers), but especially in the spring and summer months.


See article: My Light Therapy Devices - Pros & Cons

🌐 Further Reading

Explore these expert insights and trusted sources to deepen your understanding of light therapy, its origins, and skin-enhancing benefits:

  • NASA Research on LED Therapy — Learn how space missions pioneered red light therapy for wound healing and tissue repair.
  • PURE Spa Wellness Journal — Discover real-world applications, clinical studies, and the science behind professional LED treatments.
  • Zwivel Dermatology Hub — Gain clarity on red light’s role in collagen stimulation and anti-inflammatory effects.
  • Peach Clinics — Uncover how yellow and green light therapies aid with pigmentation, redness, and lymphatic drainage.
  • The Dermatology Institute Melbourne — Find research-backed insights into blue light’s ability to reduce acne and regulate oil production.


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