Clear, balanced-looking skin relates to healthy cell function, a stable skin microbiome, and regulated oil production. When these systems are out of balance—due to hormones, stress, or environmental factors—pores can clog and breakouts can appear. Light therapy offers a gentle, non-invasive approach that supports the skin’s natural processes as part of a cosmetic routine.
How does light therapy work?
Light therapy uses specific wavelengths to interact with the skin via photobiomodulation (PBM) and visible-light mechanisms. Red/blue LEDs are the most studied for cosmetic acne care.
Blue light (~415–470 nm): Acts near the surface and interacts with C. acnes porphyrins; clinical studies and RCTs show improvements in inflammatory lesions with blue or blue+red regimens (Papageorgiou et al., 2000).
Red light (~630–660 nm): Penetrates more deeply, supporting cellular metabolism and calming visible redness; often combined with blue light for complementary effects (Goldberg & Russell, 2006).
Red+Blue combination: Multiple clinical studies report cosmetic improvements with alternating/combined 415 nm + 633/660 nm LED protocols (Lee et al., 2007; Papageorgiou et al., 2000).
Together, these wavelengths provide a layered cosmetic approach—blue light focuses on surface balance, while red light supports deeper calming and overall skin appearance (Pei et al., 2015).
Applications for clearer skin
Light therapy can be integrated into home care or cosmetic studio routines to support a clearer, calmer, more balanced-looking complexion.
Common cosmetic applications include:
Active breakouts: Combined red+blue LED regimens have shown improvements in the appearance of inflammatory lesions (Lee et al., 2007; Goldberg & Russell, 2006).
Oily or congested areas: Blue light sessions can help maintain visible clarity in blemish-prone zones (Papageorgiou et al., 2000).
Overall tone & texture: Consistent use of red and/or blue light may support a smoother-looking skin surface over time (Pei et al., 2015).
Key benefits at a glance
When used regularly in a cosmetic routine, LED light can help support skin balance, comfort, and a more uniform appearance.
Non-invasive and contact-free
Supports a clearer, more balanced-looking complexion (Lee et al., 2007)
Suitable for individuals seeking to improve the cosmetic appearance of blemish-prone or uneven skin. Can be integrated into at-home routines or professional cosmetic care.
How to use it in practice
Face: 10–20 minutes with combined red+blue light, 3–5 times per week (Lee et al., 2007).
Localized areas: 5–10 minutes focused exposure on zones with visible congestion.
Maintenance: 2–3 sessions weekly once skin looks balanced and comfortable.
Blue and red LEDs are among the most studied ranges for cosmetic acne care. Clinical trials show benefits of blue (≈415 nm) and combined blue+red (≈415/633–660 nm) on inflammatory lesions and overall appearance (Papageorgiou et al., 2000; Goldberg & Russell, 2006; Lee et al., 2007), supported by reviews/meta-analyses (Pei et al., 2015). Mechanistic PBM reviews describe mitochondrial and anti-inflammatory pathways relevant to red-spectrum LEDs (de Freitas & Hamblin, 2023).
These findings provide cosmetic and educational context and do not imply therapeutic outcomes.
Why redtreat
At redtreat, we design devices to deliver precise, comfortable, and consistent light exposure across research-aligned cosmetic wavelengths.
Targeted wavelengths (≈415–660 nm) addressing different skin depths
Balanced irradiance for gentle, comfortable sessions
Swiss engineering for reliability and ease of use
Disclaimer
The studies referenced here are for educational and informational purposes only. They summarize general research on light–skin interaction and do not constitute clinical or therapeutic claims for redtreat products.
Dr. med. Wiebke Gruber - Medical specialist in internal medicine
We tested the SolisPanel 3000 in our clinic over several weeks. Some patients with skin problems such as neurodermatitis and severe fatigue underwent regular sessions of 20 minutes 2–3 times a week during this period. After just ten treatments, they reported a significant improvement in their symptoms, either in the form of soothed skin or increased energy in their everyday lives.
MSc, BEng, Dina Holzapfel - Co-Founder red. house of Collagen
When it comes to purchasing red light therapy devices, it’s essential to understand the specifications and to trust that the manufacturer delivers on their promises. That’s why redtreat is my top recommendation in Switzerland. The founders have a deep scientific understanding of the therapeutic principles behind red light therapy and go above and beyond with their customer service and education. I’m very impressed with their expert guidance and ongoing support to ensure you choose the right product for your needs and achieve the results you’re looking for.
Dr. med. Christian Fahe - Specialist in nephrology and internal medicine FMH
We have been using SolisHead for some time now in our clinic for aesthetic treatments. Patients with skin problems such as blemishes, redness, or swelling after procedures have undergone 2–3 sessions per week, each lasting approximately 15–20 minutes. After just a few applications, there was a visible improvement in skin appearance, faster regeneration after aesthetic treatments, and an overall fresher appearance of the skin.
