LED Therapy with red, blue and near-infrared light to reduce acne and inflammation and speed recovery
LED emits specific wavelengths of light that generate no heat and do not damage the skin. Blue light at 415 nm suppresses acne bacteria, red light at 633 nm stimulates collagen and reduces inflammation, and near-infrared at 830 nm reaches deeper to speed healing.
How LED works
The principle is called photobiomodulation. Light at the right wavelengths is absorbed by the mitochondria in skin cells, which then produce more ATP energy and function better. Fibroblasts produce more collagen, immune cells release fewer inflammatory mediators and capillaries dilate to bring more blood to the area. Blue light is absorbed by porphyrins produced by C. acnes bacteria, generating reactive oxygen that destroys the bacteria without affecting skin cells. LED is not a laser: the energy is low and diffuse, so there is no heat, no downtime, and it suits every skin type, including darker skin.
Choosing the light colour for your concern
| Colour / wavelength | Depth | Main effect | Used for |
|---|---|---|---|
| Blue ~415 nm | Upper skin | Suppresses acne bacteria, slightly reduces oil production | Mild to moderate inflamed acne |
| Red ~633 nm | Dermis | Reduces inflammation and redness, stimulates collagen | Sensitive skin, after lasers, early lines, acne redness |
| Near-infrared ~830 nm | Deep dermis to fat layer | Speeds wound healing, reduces swelling and pain | After surgery, HIFU, thread lifts or hair transplants |
| Blue + red alternating | Multiple layers | Reduces bacteria while calming inflammation | Acne with both inflamed lesions and redness |
The treatment day
Recommended number of sessions
Inflamed acne
Twice a week for 4–6 weeks alongside medication from the doctor. Most people see fewer new breakouts after 3–4 weeks
After lasers or other procedures
One session immediately after the procedure, with perhaps 1–2 more in the first week to reduce redness and swelling
Skin recovery and fine lines
1–2 times a week for 8–10 sessions, then 1–2 maintenance sessions a month
After hair transplants or surgery
As planned by the doctor, usually 1–2 times a week in the first month
Take photosensitising medication such as isotretinoin, tetracyclines or certain psychiatric drugs; have photosensitive epilepsy; have lupus or another light-sensitive condition; have an eye condition for which your ophthalmologist has advised avoiding bright light; are pregnant; or have an untreated skin cancer in the treatment area
Realistic expectations
LED is a comfortable, very low-risk supporting treatment, but results are gradual and depend on regular sessions. For moderate to severe acne, LED does not replace medication from the doctor, and for wrinkles it is clearly less effective than lasers or RF. Its strengths are that it suits every skin type, has no downtime and makes recovery from other procedures more comfortable. The doctor can tell you whether to use LED on its own or combined with another treatment.
Related treatments
Prices
| LED Therapy alone Per 20-minute session, colour chosen on the doctor's advice | [ ] |
| LED added to a treatment As a finishing step after a treatment or laser | [ ] |
| LED acne course 8 sessions within 6 weeks | [ ] |
Frequently Asked Questions
Can LED darken or burn the skin?
No. The LED light used contains no UV and is low in energy, so it neither darkens nor burns the skin, which makes it suitable for every skin type, including darker skin.
How does clinic LED differ from a home device?
Clinic devices are several times more intense and control the wavelength precisely, which is why 15–20 minutes per session is enough. Most home devices need to be used more often and for longer to deliver a similar dose of energy.
Does LED really treat acne?
It helps reduce mild to moderate inflamed acne when used regularly, by suppressing bacteria and calming inflammation. It does not directly address clogged pores or hormonal acne, so it is usually combined with medication and exfoliation.
Can I have LED too often?
It can be done as often as once a day, but there is no need. Most studies use 2–3 sessions a week, and more frequent sessions do not add a clear benefit.
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