Pain, inflammation and recovery
This is where results come fastest. Many people notice reduced soreness, easier movement or better sleep after the first or second full-body session, because the effect on inflammation and blood flow is immediate. For a longer-standing problem such as tendinopathy or arthritic knee pain, trials typically show a clear benefit after six to twelve sessions over two to four weeks.
Skin
Collagen production and skin remodelling are slow processes. Trials on fine lines, texture and redness generally run for eight to twelve weeks of two or three sessions a week before measuring change, and that is a realistic expectation. Some people notice a healthier tone sooner; structural change takes months.
Hair
Where red light helps androgenetic alopecia, the studies run for 16 to 26 weeks before assessing hair count. Anyone promising visible regrowth in a few weeks is not describing the evidence.
Why frequency matters
Photobiomodulation works through a cumulative effect on cellular energy and inflammation. Sessions spaced too far apart lose that momentum, so most protocols start at three to five sessions a week and reduce to one or two once you are improving. A 20-minute NovoTHOR session delivers the full-body dose; longer does not mean better.
What a course looks like at Omnia
At our Chiswick clinic we usually suggest an initial block of three sessions a week for four weeks, review, then maintenance at one or two a week. Membership options are designed around that pattern because it is what the research uses. For a specific injury, THOR Laser can be added to target the area directly.
If nothing changes
If you have completed a four-week block with no change in the thing you came for, it is worth reassessing rather than continuing. Sometimes the issue needs physiotherapy or manual therapy alongside light, and sometimes light is simply not the right tool.