If you're looking for a lamp that supports vitamin D, the most important thing to understand isn't the brand — it's the spectrum. The difference between a lamp that works and one that doesn't comes down to a narrow band of wavelengths.
The electromagnetic spectrum and vitamin D
The sun emits light across a broad spectrum. For vitamin D synthesis, only one section of that spectrum matters: ultraviolet B (UVB), specifically the 295–315 nm range.
Here's a quick reference for the relevant spectrum zones:
— UVC (100–280 nm): Blocked by the ozone layer. Does not reach Earth's surface.— UVB (280–315 nm): The vitamin D range. Penetrates the epidermis and triggers photosynthesis of pre-vitamin D3.— UVA (315–400 nm): Penetrates deep into the dermis. Responsible for tanning and photoaging. Does not meaningfully contribute to vitamin D.— Visible light (400–700 nm): What we see as color. No UV, no vitamin D synthesis.— Red light (630–660 nm): Studied in the context of cellular energy (photobiomodulation). No UV.— Near-infrared (700–1100 nm): Penetrates deeper tissue. Studied in relation to mitochondrial function. No UV.
Why narrowband UVB (311–313 nm) is the clinical standard
Within the UVB range, narrowband UVB — specifically 311–313 nm — is considered the most effective and targeted wavelength for phototherapy. It concentrates exposure in the most biologically active portion of the UVB range while minimizing unnecessary exposure to adjacent wavelengths.
Narrowband UVB has been used in clinical dermatology for decades, and the photochemical basis for its vitamin D-producing activity is well-established. (Wacker M, Holick MF. Sunlight and Vitamin D. Dermatoendocrinol. 2013.)
Why red light and NIR panels don't produce vitamin D
Red light panels (630–850 nm) are becoming increasingly popular for their studied effects on cellular energy and tissue wellness. But their wavelengths are entirely in the visible and infrared range — no UV, no photochemical conversion of 7-dehydrocholesterol.
Using a red light panel as a substitute for vitamin D production is a common misconception driven by the overlapping marketing of "light therapy." The mechanisms are completely different.
What to look for in a vitamin D lamp
Any lamp marketed for vitamin D support should specify its UVB spectrum output. Key terms to look for: "narrowband UVB," "311 nm," or "UVB 295–315 nm." If the specifications only mention lux, lumens, or color temperature, the device does not emit UV and cannot support vitamin D synthesis.
The unique position of Mitolux BTS2
The Mitolux BTS2 is designed to combine narrowband UVB with red light and near-infrared in a single device. This allows a single session to engage the vitamin D synthesis pathway (via UVB) while simultaneously delivering the wavelengths studied in relation to cellular energy and tissue wellness.
To our knowledge, no other consumer device at this price point combines all three spectrums without UVA.
Disclaimer: Mitolux is intended for general wellness and self-care use. Individual experiences vary. This content is for informational purposes only and does not constitute medical advice. Mitolux is not intended to diagnose, treat, cure, or prevent any disease. Use only as directed. Consult a qualified healthcare professional before use if you have a medical condition, are pregnant, or take medications that increase light sensitivity.