How it works
Mechanism before marketing.
In a randomized study of mild-to-moderate acne, 415 nm blue light and combined 415/660 nm light were evaluated over repeated sessions. More recent at-home research also uses 415 nm blue light with or without 660 nm red light.
KONKA’s documented blue range is 440–450 nm and LAYOR’s is 430 nm. Wavelength difference, output, dose, and treatment area mean these products cannot be assumed equivalent to the acne devices in those studies.
What controls the exposure
The variables that change the biology.
What the evidence supports
Blue and combined red/blue light can support inflammatory-acne care in tested protocols. Evidence varies by device, lesion type, and study design.
What we cannot assume
Research has boundaries.
None of the three current products is marketed here as an acne-treatment device. Persistent, painful, scarring, or sudden acne deserves professional assessment.
Practical use
Use the technology thoughtfully.
- Do not use a device over open, picked, or actively irritated lesions unless its validated instructions explicitly allow it.
- Keep contact surfaces clean between sessions.
- Use proven acne care and professional guidance rather than relying on LED color alone.
Primary and regulatory sources
Read the research.
Educational information only. This material does not diagnose a condition or replace care from a qualified healthcare professional.