Red Light Dose
Plain-English, research-cited guides to dosing red light therapy.
Guides
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How to calculate red light dose (J/cm²)
The irradiance × time formula, why distance changes everything, and how to compare panels on real numbers.
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Why more red light isn't better
The biphasic dose response — too little, the optimal window, and too much — and what it means for session length.
Lumen: Red Light Calculator
Pick your panel and distance, set a target dose, and Lumen returns the session time — with biphasic-window guardrails from the Hamblin research. Free to download.