Red Light & Blue Light Therapy
The purpose and effect of innovative light-based therapies.
Reading time: 3 min
Blue Light Therapy: how does it work?
Blue Light Therapy is used to treat precancerous skin diseases such as actinic keratoses, acne and in some cases depression.
The number of sessions required depends on the problem to be treated; for actinic keratoses 1 to 4 sessions are needed, for acne 4 to 6. In both cases, a number of follow-up sessions should always be planned at longer intervals.
Photodynamic therapy is effective in the treatment of pre-cancerous sun spots thanks to the combined use of photosensitive drugs. The skin will be sensitive to light for several weeks after treatment.
After a session of Blue Light Therapy the treated area will appear reddish and sore, sometimes with blistering. Healing takes about 7 days.
However, this treatment is a much less invasive approach than surgery, it is painless, generally scarless, any side effects are mild and immediate, and you can return to your activities within a week.
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Red Light Therapy: how does it work?
Red Light Therapy is a somewhat controversial therapeutic technique that uses wavelengths of red light to treat skin imperfections such as wrinkles, scars and wounds.
The origins of this therapy are quite unusual: in the 90s scientists used red light to make plants grow in space.
It was only later that Red Light Therapy was studied for its potential application in medicine, to understand how it can act on human cells.
When Red Light Therapy is used with photosensitive drugs, it is called photodynamic therapy: the sole function of the red light is to activate the drug.
The light emitted by Red Light Therapy penetrates approximately 5 millimetres below skin surface and regenerates the cells without creating surface damage.
The fields of application of Red Light Therapy are very wide, it is used to treat psoriasis, slow healing wounds, alopecia and some bone problems, from carpal tunnel inflammation to rheumatoid arthritis.
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