LED light therapy has become a popular addition to at-home skincare routines. If your EMS Facial & Neck Massager combines EMS with red, blue and green LED light, you may be wondering what each colour is designed to do.
The key difference between LED colours is their wavelength. Different wavelengths interact with the skin in different ways, and research is strongest for certain wavelengths — particularly red and blue light.
🔴 Red LED — Skin Renewal & Radiance
Red LED light is one of the most researched forms of LED photobiomodulation in skincare.
Research has investigated red light for its potential to support the appearance of skin texture, firmness and signs of ageing. It may also support processes associated with collagen production and skin repair. (Ref: Wunsch A, Matuschka K. A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase. Photomed Laser Surg. 2014;32(2):93–100.)
Think of red LED as your skin-renewal mode.
Red LED may help support:
· Smoother-looking skin
· Firmer-looking skin
· A refreshed complexion
· Skin radiance
Results from LED devices are generally associated with consistent use over time, rather than a single treatment.
🔵 Blue LED — Blemish-Prone Skin
Blue LED has been studied particularly extensively for acne and blemish-prone skin.
Clinical research has investigated blue wavelengths, commonly around 414–445 nm, with studies reporting improvements in inflammatory and non-inflammatory acne lesions with regular LED use. (Ref: Papageorgiou P, Katsambas A, Chu A. Phototherapy with blue (415 nm) and red (660 nm) light in the treatment of acne vulgaris. Br J Dermatol. 2000;142(5):973–978.)
For an at-home skincare routine, blue LED can therefore be used as a blemish-focused mode.
Blue LED may help support:
· Clearer-looking skin
· Blemish-prone skin
· A more balanced-looking complexion
It's important to distinguish cosmetic LED devices from medical acne treatment. An LED device should not be presented as a replacement for professional assessment or prescribed treatment where these are required.
🟢 Green LED — A Gentle Addition to Your Routine
Green LED is commonly included in multi-colour LED devices, but the scientific evidence for green light is less established than the evidence for red and blue wavelengths. Current literature does not yet provide the same level of robust clinical evidence as exists for red and blue wavelengths.
Rather than claiming that green light treats pigmentation or removes dark spots, it is more appropriate to consider it an additional complexion-focused mode within an overall skincare routine.
If uneven pigmentation is a concern, one of the most important evidence-based steps remains daily broad-spectrum SPF, alongside appropriate skincare.
EMS + LED: Two Different Technologies
If your device combines LED with EMS (electrical muscle stimulation) and facial massage.
These technologies work differently:
LED → uses specific wavelengths of light.
EMS → uses mild electrical stimulation.
Massage → provides mechanical movement across the skin.
The combination can make your regular skincare routine feel more like an at-home facial treatment.
When using EMS, follow the manufacturer's instructions and use the recommended water-based conductive product if required.
How to Use
A simple routine is:
1. Cleanse
Start with clean skin and remove makeup.
2. Apply your conductive serum or gel
If using EMS, follow the device instructions regarding conductivity.
3. Select your LED mode
Choose red, blue or green according to your skincare routine.
4. Massage gently
Move the device according to the manufacturer's recommended technique. Avoid excessive pressure or repeatedly treating the same area.
5. Finish your skincare routine
Apply your moisturiser and, during the daytime, finish with SPF.
Always follow the specific instructions supplied with your device, particularly regarding treatment duration and frequency.
References
1. Wunsch A, Matuschka K. A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase. Photomed Laser Surg. 2014;32(2):93–100.
2. Papageorgiou P, Katsambas A, Chu A. Phototherapy with blue (415 nm) and red (660 nm) light in the treatment of acne vulgaris. Br J Dermatol. 2000;142(5):973–978.