Mitolux Review: Can LEDs Really Boost Vitamin D?

The Better than Sunshine lamp from Mitolux is one of the most exciting new vitamin D lamps to hit the market! Of course, as usual, we checked the UVB and infrared output with our lab-grade spectrometers, so you know exactly what you’re getting!

I also tested my vitamin D results, which were not what I expected… jump to those here.

Let’s jump right in!

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My verdict

Mitolux BTS2 Vitamin D Sunlamp

The Mito Lux is designed to mimic natural sunlight exposure, emitting infrared before and after UVB. While it offers a well-thought-out design with a proximity sensor for safety and multiple modes for different skin types, my month-long test only resulted in a modest 1.5 ng/mL increase in vitamin D. It may still provide some benefit for those looking to supplement sun exposure, with the added perk of red/infrared light therapy. However, based on my experience, expectations for vitamin D production should be tempered until more testing is done.

• Pro: Dynamic UVB + infrared cycle is very innovative
• Pro: Doubles as a red light therapy panel
• Pro: The proximity sensor is a nice touch

• Con: Slightly more expensive than the Sperti
• Con: I was unable to raise my vitamin D levels significantly, I'm unsure as to the reason

Mitolux store

See the lab results

Ir only 12 in · measured Jun 27, 2026

11,950lux

Brightness

Spectrum

10

Near-infrared630 nm

400500600700800900

Wavelength (nm)

Spectrum chart. Mitolux BTS2 Vitamin D Sunlamp, melanopic DER 0.01.

Flicker, as published

01

20406080100

Time (ms)

Chart by time. Mitolux BTS2 Vitamin D Sunlamp.

The Mitolux Vitamin D Lamp

The Mitolux is a vitamin D lamp with a unique twist. Unlike traditional broadband fluorescent UV lamps, it utilizes 295nm narrowband UVB LEDs for a more precise and efficient effect. (in theory)

But that’s not all—it also mimics the Sun by incorporating healthy doses of red and infrared light before and after UVB exposure, improving its safety. This comes in the form of 590nm, 630nm, 830nm, and 850nm LEDs that can help prepare and heal your skin during a session.

This is a perfect pairing for anyone who wants to produce vitamin D without worrying about irradiating their skin with UVA or getting a tan.

The Mitolux feels like a quality product! It weighs 3 lbs, has an all-metal and glass body, and features an onboard fan to keep the electronics cool during use.

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Using the Mitolux

To use the Mitolux, select a “mode” and press the power button.

Ten power levels are available depending on your skin type and tolerance to UVB light. There is also a red/infrared-only mode. A small proximity sensor on the front will beep and warn you when you get too close (13 inches) while using the UVB mode.

The back of the Mitolux includes a table with the recommended modes for each skin type.

If you’re unfamiliar with skin types, here’s a chart:

To give you an idea of the area, this lamp lights up 15 inches away; it’s pretty decent!

Session Durations

So, how long are the UVB sessions?

P1: 3 min
P2: 4 min
P3: 5 min
P4: 7 min
P5: 8 min
P6: 9 min
P7: 10 min
P8: 12 min
P9: 13 min
P10: 15 min

Infrared runs the entire session. However, UV is only turned on in the middle of each session. Below is a graph of the emissions for each UV mode:

I’m not sure what’s going on with P5 here…

The Glasses

The Mitolux comes with two pairs of glasses that completely block UVB. The amber pair lets most of the infrared through, while the black pair cuts down on it quite a bit.

Here’s an example of what they block from the Mitolux:

Testing the Mitolux

Here is where I tested the actual spectral output using our spectrometer!

Spectral Output

Below is a nice colored graph of the Mitolux’s spectrum.

Just as advertised, you can see that 295nm UVB diodes are present here. We also see those amber/red and infrared diodes.

Here’s an average from 15 inches away:

It doesn’t look like a lot of UV light, does it? Let’s look a little closer at that, though…

UV Output

Believe it or not, the Mitolux has a maximum light intensity similar to the Sperti lamp. However, unlike the Sperti, it only puts out UVB.

According to this 2017 study, diodes between 290 and 300nm seem the most effective at producing vitamin D in human skin. Since the Mitolux is primarily this type of UV without all the extra UVA, I can see this being “safer” than the Sperti. More bang for your buck, let’s say.

Again, this is theory for me, because I didn’t get a huge increase.

Infrared Output

Selecting H on the Mitolux turns on the infrared-only mode, which runs for 10 minutes. Mitolux recommends using this mode at a distance of 6-12 inches.

Here’s a close-up of the spectrum of just the infrared portion at 6 inches:

Here is a chart showing the total irradiance in mW/cm² from 1-12 inches:

This is a decent output and should be enough light to be effective anywhere in this range.

Flicker Testing

I was curious about any flicker, so I tested this as well.

There’s a small amount of high-frequency flicker here, but not much.

EMF Testing

I detected no magnetic fields from this Devi e however there are significant electrical fields within the area of use <15 inches, if that concerns you.

I measured around 60-70 V/m at 15 inches

Vitamin D Testing

Finally, let’s talk about my test results… they’re not good.

Mitolux recommends using the lamp for 6 weeks before testing, but I only did 30 days because I wanted to directly compare the results to my DIY test.

However, I did use the lamp almost every day, while Mitolux recommends every other day, so maybe that makes up for it!

I’m a skin. type 3, so I followed their schedule for that, here is my exact schedule (I missed a few days)

Unfortunately, my vitamin D levels only went up 1.5ng/mL over that 30-day period, here are my test results:

This is in stark contrast to the results I got from my DIY vitamin D lamp, in which I increased my levels by 16.2ng/mL over a 30-day period.

Either narrowband UVB doesn’t work as well as broadband UVB/UVA, or it doesn’t work very well for me, not sure

Overall Thoughts

I think this is a cool product. I love the attempt to make a more “natural” and safer vitamin D lamp by mimicking the solar cycle of infrared and UVB.

The build quality and programming are very well done! I’m just disappointed it didn’t seem to work for me 😔

I’d love to see if anyone else has done testing with this and what your results were!

10% off with link

My verdict

Mitolux BTS2 Vitamin D Sunlamp

• Pro: Dynamic UVB + infrared cycle is very innovative
• Pro: Doubles as a red light therapy panel
• Pro: The proximity sensor is a nice touch

• Con: Slightly more expensive than the Sperti
• Con: I was unable to raise my vitamin D levels significantly, I'm unsure as to the reason

Mitolux store

See the lab results

Ir only 12 in · measured Jun 27, 2026

11,950lux

Brightness

Spectrum

10

Near-infrared630 nm

400500600700800900

Wavelength (nm)

Spectrum chart. Mitolux BTS2 Vitamin D Sunlamp, melanopic DER 0.01.

Flicker, as published

01

20406080100

Time (ms)

Chart by time. Mitolux BTS2 Vitamin D Sunlamp.