How LED Light Therapy Works
LED light therapy uses specific wavelengths of light to support the skin’s natural processes. Different colors of light reach the skin at different depths, which is why each setting on an LED mask can serve a different skincare purpose.
Unlike UV light, cosmetic LED devices are designed to use non-UV wavelengths. The treatment is non-invasive and does not heat or damage the skin when used correctly.
Red Light Therapy
Red light is commonly used in skincare routines focused on the appearance of:
- Fine lines
- Uneven texture
- Dull-looking skin
- Loss of firmness
Red light can support the skin’s natural renewal processes and is often used to promote a smoother, healthier-looking complexion.
Best for: anti-ageing routines, skin radiance and overall skin rejuvenation.
Blue Light Therapy
Blue light is commonly used for blemish-prone and oily-looking skin.
It is often included in skincare devices to help support a clearer-looking complexion and improve the appearance of skin affected by excess oil and visible blemishes.
Best for: blemish-prone, oily or congested-looking skin.
Purple Light Therapy
Purple light is typically created by combining red and blue light.
This allows you to combine the benefits associated with both settings in one treatment, making it a useful option for skin that looks both blemish-prone and in need of rejuvenation.
Best for: combination concerns, uneven-looking skin and blemish-prone complexions.
Near-Infrared Light
Near-infrared light is invisible to the human eye and can penetrate more deeply than visible red light.
It is commonly used alongside red light in beauty devices to support the appearance of smoother, firmer and healthier-looking skin.
Best for: advanced skin rejuvenation and supporting a firmer-looking complexion.
Why Different Light Colours Matter
Each wavelength interacts with the skin differently. That means your LED skincare routine can be adjusted depending on what your skin needs.
For example:
Red light → rejuvenation and visible signs of ageing
Blue light → blemish-prone and oily-looking skin
Purple light → combined red + blue benefits
Near-infrared → deeper skin-supporting light treatment
You do not necessarily need to use every colour in the same session. Choose the setting that best matches your current skincare goal.
How to Use an LED Mask
For best results, LED therapy is normally used as part of a consistent skincare routine.
Start with clean, dry skin. Position the mask comfortably on your face, select your preferred light setting and use the device for the recommended treatment time.
After your session, continue with your normal skincare routine, such as serum and moisturiser.
Consistency is more important than using the device for longer than recommended.
When Will I See Results?
LED skincare is not an instant treatment.
Some people may notice their skin looking brighter or refreshed relatively quickly, while improvements in texture, firmness or overall appearance can require consistent use over several weeks.
Results vary depending on skin type, routine and frequency of use.
Is LED Light Therapy Painful?
LED light therapy is designed to be non-invasive.
There are no needles, exfoliating acids or abrasive treatments involved. Most people simply experience the light from the mask during their session without significant discomfort.
Always follow the instructions supplied with your device.
Make LED Therapy Part of Your Skincare Ritual
LED technology gives you a convenient way to bring professional-inspired light therapy into your skincare routine from home.
Whether your goal is a brighter-looking complexion, smoother-looking skin or support for blemish-prone skin, choosing the right light setting allows you to personalise each session.
Discover the SULSAL LED Face & Neck Mask →
Important note
I would add a small safety section at the bottom of the page:
Safety Information:
Always use your LED device according to the supplied instructions. Do not exceed the recommended treatment time. If you have a photosensitivity condition, an eye condition, or take medication that increases sensitivity to light, speak with a healthcare professional before using an LED device.