Dosing parameters for Class IV laser therapy are guided by published photobiomodulation research and are individualized based on the condition, tissue depth, patient size, and skin type. The following provides a general clinical framework drawn from the evidence base.
Key Dosing Parameters
WAVELENGTHS
500–1270 nm
Near-infrared preferred for deep tissue
ENERGY DENSITY
3–60 J/cm² AT THE TARGET
Therapeutic window per Arndt-Schulz Law
SESSION INTERVALS
2–3x/week
3-6 Sessions Acute
6-10 Sessions Chronic
SESSION DURATIONS
Average 2-5 minutes per area
2-4 treatment areas per session
The therapeutic window AT THE TARGET— the range in which photons produce beneficial biological effects — falls between approximately 3 and 50 J/cm² for most conditions. Below this threshold, insufficient photonic energy reaches the target tissue. Above 80–100 J/cm², an inhibitory effect may occur.
Pre-Programmed Protocols
VLaser systems include pre-programmed, condition-specific protocols that automatically calculate power, energy density, and session duration based on clinical selection. This feature simplifies delivery and ensures consistency, particularly for less experienced operators.
