UVB Comb vs. UVB Panel: Which Fits Your Vitiligo Pattern
This is one of the most common early confusions when buying a home UVB device: should you get a comb or a panel? The honest answer is that they are not competing products — they solve different problems, and the right choice depends entirely on where your vitiligo patches actually are.
What each is built for
UVB combs are designed specifically for the scalp. The comb teeth part your hair as you move the device across your head, allowing UV light to reach the skin directly through hair that would otherwise block it. This makes combs the right tool for scalp vitiligo, hairline patches, and other areas where hair coverage is the main obstacle to effective treatment.
UVB panels are flat or slightly curved light arrays designed to treat larger areas of exposed skin efficiently — arms, legs, torso, face, hands. They are not built to work through hair, and using one on the scalp is both inefficient and awkward compared to a comb.
How to decide
If your vitiligo is limited to the scalp or hairline, a comb is the more targeted and often more affordable choice — you are not paying for panel coverage area you do not need.
If your vitiligo is on exposed skin (face, hands, arms, torso, legs), a panel is the appropriate tool. Combs are not a practical substitute for treating larger flat areas.
If you have patches in both categories — say, scalp and hands — you may eventually want both device types, though many people start with whichever area is the higher priority and add the second device later.
Specific products
Dermfix 1000MX and Kernel KN-4003B are both solid comb options at different price points for scalp-focused treatment; Daavlin’s comb carries the same build quality its panels are known for, at a higher price.
Mid-range scalp comb
Dermfix 1000MX UVB Comb
A solid balance of price and build quality for scalp-focused treatment.
Check Price on AmazonBudget-accessible scalp comb
Kernel KN-4003B UVB Comb
A more accessible entry point into scalp phototherapy without a large upfront investment.
Check Price on AmazonClinical-grade build quality
Daavlin UVB Comb
The higher-end comb option, with the same build quality reputation Daavlin's panels carry.
Check Price on AmazonFor panels, see Kernel vs. Daavlin vs. Dermfix for a full comparison across brands and sizes.
Dosing is different too
Scalp skin and body skin do not necessarily tolerate UV exposure identically, and comb devices are typically dosed and timed differently than panels given the different application method (moving across the scalp vs. holding still against flat skin). Your dermatologist’s guidance should be specific to the device type you are using, not a generalized “UVB dose” that assumes one device category.
My take
Do not overthink this one — it is genuinely just about where your patches are. A comb will not do a panel’s job well, and a panel is impractical on the scalp. If you are unsure which category your situation falls into, describe your patch locations to your dermatologist and they can point you to the right device type before you buy anything.
