Why These Wavelengths?
The right wavelength, at the right depth.
Wavelength selection is the single most consequential engineering decision behind any photobiomodulation device. Here’s the optical rationale behind VITARA’s five wavelengths — individually and in combination.
The Optical Window
Tissue penetration of light depends on wavelength-specific absorption and scattering by skin, blood, and water. Foundational tissue-optics research describes a therapeutic, near-infrared “optical window” of roughly 650 to 1350nm, within which light penetrates tissue more deeply than at shorter or longer wavelengths. VITARA’s wavelengths sit within, or at the shorter edge of, this window.
Each Wavelength, Individually
630nm — Absorbed relatively strongly by superficial tissue, well suited to the epidermis and superficial dermis, including the skin cells relevant to skin quality and superficial wound processes.
660nm — Among the most extensively studied PBM wavelengths in sports-recovery and dermatology research, with a substantial body of work on muscle recovery, exercise soreness, and skin-cell processes.
810nm — Sits within the first near-infrared optical window and has been used extensively in research on muscle performance, post-exercise recovery, and the underlying cellular mechanisms of PBM.
830nm — Has a long history in musculoskeletal pain and joint-disorder research, including trials incorporated into several major systematic reviews.
850nm — Represents close to the deepest effective penetration within the first near-infrared window, and features in several emerging sleep- and wellness-related PBM studies.
Why Combine Five Wavelengths?
VITARA’s specific five-wavelength combination hasn’t itself been the subject of a dedicated clinical trial, and we don’t claim otherwise. What the literature supports is a strong evidence base for each wavelength individually, and a coherent optical rationale for combining shorter, more superficial wavelengths with longer, deeper-penetrating ones within a single session.
A multi-wavelength device can, in principle, address superficial structures like skin alongside deeper structures like muscle and joint-adjacent tissue, within one protocol rather than requiring separate devices. This isn’t evidence that the combination is synergistic or superior to individually-dosed wavelengths — that specific claim would require dedicated head-to-head trials that don’t currently exist. Our position is deliberately conservative: multiple wavelengths let us address a broader range of well-evidenced tissue targets within one convenient session.
Our Approach
Each of our five wavelengths earns its place through its own body of published research. None is there because a competitor uses it, or because more wavelengths sounds more impressive. Where the evidence stops — like any claim of synergy between wavelengths — we stop making claims too.