I was wondering if anyone had thoughts on current body red light therapy for anti aging ? I've been looking into it and anecdotally there seems alot of good feedback. Not sure how much evidence there is.
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I was curious about the light intensity, a Nasa educational sight says midsummer sunlight (across whole spectrum) is about 137 mW/cm^2.
This site site says the red-light panels are usually in the range of 5 to 50 mW/cm^2 (all as red light).
https://gembared.com/blogs/musings/how-many-watts-do-you-you-need-for-red-light-therapy
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I have been using Beauty by light light therapy mask for at least a year now. I was having trouble with facial flushing. I do red for 10 mins then yellow for 10 mins. Flushing has gone. My daughter said the other day that I look younger than her. I only use a basic low irritant cleanser, moisturiser and sunscreen. The light definitely works!
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Many therapies of this sort, if they work, tend to work by causing invisible damage that triggers the body's repair processes, and the repaired skin ends up looking younger. Same deal with microneedling.
I'm not sure I buy the "boosting mitochondria" story, unless we've got some solid lab evidence and reason why that might work.
We do get exposed to plenty of red light in the normal spectrum, so at the very least it would have to be much more intense than the red component of sunlight.