How many sessions of red light therapy do I need?
Expert Answer
Most skin concerns respond within 8-12 sessions (3x/week for 3-4 weeks). Chronic pain protocols require 12-15 sessions. Hair loss treatment requires at least 16-26 weeks of consistent treatment.
About Red Light Therapy
Typical Cost
$25–$75
per session
Evidence Level
moderate7,000+ published studies
Red (630-660nm) and near-infrared (810-850nm) light is absorbed by cytochrome c oxidase in mitochondria, enhancing electron transport chain activity, increasing ATP production, and modulating reactive oxygen species signaling.
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