The short answer: Mitolux is a multi-spectrum light therapy device for home use that combines three distinct wavelengths — UVB narrowband, red light, and near-infrared — in a single unit.
The longer answer requires understanding why that combination matters, and what problem it was built to solve.
The problem Mitolux was designed to address
The human body evolved under full-spectrum sunlight. For hundreds of thousands of years, regular sun exposure was not optional — it was the default. Sunlight regulated circadian rhythms, triggered vitamin D synthesis in the skin, and delivered wavelengths studied in relation to cellular energy and tissue repair.
The modern world changed that equation. The average American spends roughly 90% of their time indoors. Office workers and remote professionals in particular can go weeks with minimal meaningful sun exposure — especially in northern latitudes during winter, where UVB intensity drops to near zero from October through March.
Mitolux was built to restore the biological inputs that indoor living eliminates. Not as a substitute for healthcare. As a wellness tool for people whose daily environment no longer provides what their biology expects.
The three spectrums and what they do
UVB Narrowband (295–315 nm): The same wavelength range responsible for vitamin D synthesis in the skin. When UVB photons contact the epidermis, they trigger the conversion of 7-dehydrocholesterol into pre-vitamin D3 — the starting point for the body's natural vitamin D production pathway. This is a photochemical process, not a supplement. The body produces what it produces based on exposure, skin type, and other factors. (Wacker M, Holick MF. Sunlight and Vitamin D. Dermatoendocrinol. 2013. https://pubmed.ncbi.nlm.nih.gov/24494042/)
Red Light (630–660 nm): Red light in this range has been studied in relation to cellular energy production, specifically its interaction with cytochrome c oxidase — an enzyme in the mitochondrial electron transport chain. This research area, known as photobiomodulation, is an active field of scientific inquiry. (Hamblin MR. Mechanisms and applications of the anti-inflammatory effects of photobiomodulation. AIMS Biophys. 2017. https://pubmed.ncbi.nlm.nih.gov/28748217/)
Near-Infrared (810–850 nm): NIR penetrates deeper into tissue than visible light. It is studied in the context of mitochondrial function, tissue wellness, and biological recovery processes. (Karu TI. Mitochondrial mechanisms of photobiomodulation. Photomed Laser Surg. 2010. https://pubmed.ncbi.nlm.nih.gov/20374019/)
Why combining all three in one device matters
Most light therapy devices do one thing. SAD lamps provide bright white light to support mood during darker months — but they don't emit UVB and don't support vitamin D synthesis. Red light panels target cellular energy but do nothing for vitamin D. Traditional sunlamps emit UV but often include UVA, the component most associated with photoaging.
The Mitolux BTS2 is, to our knowledge, the only consumer device that combines UVB narrowband (without UVA), red light, and NIR in a single accessible unit. That combination allows a single daily session to address multiple biological inputs that the modern indoor lifestyle eliminates.
Who built it and why
Mitolux was founded by Gerardo "Guti" Gutierrez, a professional photographer who spent two decades studying light — first as an artistic medium, then as a biological one.
In 2020, Guti was experiencing chronic fatigue, depression, and a complete loss of energy. On instinct, he began spending time in direct sunlight every morning — no shirt, no sunglasses, no sunscreen. In days, something shifted. In weeks, his energy returned. In three months, he was off medication.
He spent the following years studying over 7,000 peer-reviewed papers on light, photobiology, and human health. The result was the Mitolux device line and a book — "Rewired by Light" — designed to make that research accessible to anyone who couldn't access the sun.
Pricing, guarantee, and how to get it
The Mitolux BTS2 is priced at $799. Financing is available from $66/month through Affirm or Splitit.
Every purchase includes a 30-day risk-free guarantee. If you don't feel a difference in the first 30 days of consistent use, Mitolux will refund your purchase.
The device ships to the United States, United Kingdom, Australia, UAE, and the DACH region.
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.