Daavlin products solve the problems of over-exposure to ultraviolet light by maximizing the delivery of narrow-band UVB radiation (in the 311-312nm range, the most beneficial component of natural sunlight) while minimizing exposure to superfluous UV. This allows patients to receive photo therapy treatments with less risk of severe burning or pathogenic exposure to more harmful wide band radiation ranges. UVB narrow-band also avoids the adverse side effects of the psoralen drugs used in conventional PUVA therapy, since UVB treatment requires no supplemental drugs.

Narrow Band UVB light is at a wavelength of 311nm, most other products emit the older, more dangerous radiation in the wide band spectrum. Narrow band UVB is much safer than full spectrum UVB, and the output is reduced by well over 97%. Narrow band UVB is the exact wavelength that vitiligo responds to best. Why bombard your skin with unneeded light radiation? If you imagine sun exposure to natural sunlight is equal to 100% UV radiation exposure, using a narrow band UV light is roughly 1% UV radiation exposure (powerful and targeted treatment).