Health is an important factor in life. Light is one of the elements used for medical treatment from the past few decades. The use of light as a treatment method is evolving and improving with time, along with the treatment techniques. Red Light Therapy is one of the safest and advanced technology in which particular infraRed Light wavelength used for human body treatments.

Red Light Therapy (RLT)

Red Light therapy is unique in the treatment with no harmful side effects, used for the benefits of the human body or to help the human body from some pain or other issues. i.e., it is a method to treat skin, muscles, tissues, and other parts of the human body by using light technology.

This therapy uses infrared (low-level frequency) or Red Light rays, which is part of the electromagnetic spectrum and is invisible to the human eye. And the main advantage is the light can quickly penetrate through the more in-depth and different layers and parts of the skin without any side effects.

The Red Light therapy has different names like

  • Photobiomodulation (PBM) Therapy,
  • Lower Level Laser (Light) Therapy (LLLT),
  • Soft-Laser Therapy,
  • Cold-Laser Therapy,
  • Bio-stimulation Therapy,
  • Photonic-Stimulation Therapy,
  • Lower-Power (LP) Laser Therapy (LPLT).

These names are after the light and method used for this therapy.

Process or treatment

Red Light treatment, the human body, or a particular part of the body made to expose to the Red Light. The Redlight penetrates through the skin and reaches the cell’s power generator called mitochondria. It soaks in that light, which helps to increase its energy to function faster. Thus these mitochondria produce more ATP (adenosine triphosphate), which carries energy molecules. Therefore with these more quickly creating ATPs’s the cell in the body can regenerate and repair themselves at a faster rate than the standard time, leading to more rapid production of cells.

Red Light therapy is a natural one with no pain and no invasive. Red Light is harmless to skin. It doesn’t cause any damage to any cells, tissues, or muscles. This light penetrates up to 5 millimeters of skin without stimulating the skin.

Benefits of Red Light

Infrared (low level) light is helpful in human body cells and tissues to regenerate and repair them, and also low-level infraRed Light also improves the circulation of oxygen-rich blood in the body.

In a study, some particular wavelength in infrared is useful for the human body. Like 830nmand 633nm is the specific wavelength give benefits to the human body, i.e., is mainly on skin cell and muscles.

Some following are some of the main benefits of this Red Light therapy

  • Wrinkles and skin complexion

This therapy is effective in treating skin color complexion, especially face and reducing wrinkles in different parts of the body, also helpful in treating fine lines on skin and signs of aging. In this, the area of the skin which require recovery made to expose to the Red Light treatment. It also removes age spots, stretch marks, and dark spots on the skin surface.

  • Dental issues

It is common to have dental issues like gum disease and pain at some time. The use of Red Light for the treatment of gum disease, dental pain like cold sores, and also fights with bacteria is remarkable recoveries. Also, exposure to Red Light helps in whitening the teeth in strengthening the gum of teeth.

  • Cardiovascular health

This therapy also uses for improving Cardiovascular health by increasing the production of vital signaling molecules, i.e., nitric oxide, which helps is better blood circulation without clotting or other issues in circulation. With this, the injured tissues get more oxygen and nutrients to repair themselves.


  • Wound healing and tissues repairs

When the light penetrates the skin, it helps the cells to work faster. When the cells work more quickly than the cell production increases and also heal the wound by covering the wounded part with new cells; thus, it’s also repair tissues in the same way.  Also treat cuts bruises, bites.


  • Hair growth issues

Hair loss is a secondary side effet often caused due to ailing health issues., e.g., androgenic alopecia or other body issues. This therapy helps in improving hair growth by strengthening the weak cells in the scalp tissues. By cell functioning improvements, hair growth increases.

  • Dementia

Red Light therapy is an excellent aid in dementia by reduces oxidation stress and aid memory. It also helps in preventing early-stage memory decline and rescued late-stage memory deficits. This light also helps patients with better sleep and circadian rhythm.

  • Inflammations and pain

Tendon (the thick and fibrous, a cord that attach the muscles to bone), sometimes suffer from the irritation, which causes pain, occur at any part of limbs.  These inflammations are treatable using Red Light therapy. The light penetrates through the muscles, bone and helps the repair by increasing the circulation in the skin and make more oxygen and nutrients available at that part of the skin.

  • Scar removal

Many people suffer from pain often caused due to a minor accident and remain as scars on the skin for a longer time. Such injury it is possible to get rid of the pain and scars using the Red Light therapy. It also helps in treating sunburns and the effects of UV rays on the skin.

  • Psoriasis

Red Light therapy is useful in treating psoriasis disease and heals the skin with healing the cells of the skin and cure itchiness and irritation. This therapy also used for cellulite and acne.

  • Osteoarthritis

A study proved that with the help of this Red Light therapy, the pain related to osteoarthritis reduces by 50%.

  • Short term treatments

Many diseases cause any side effects and pain during the development from the initial stage to the final step. This Red Light therapy helps to treat some of those issues and helps the patients to suffer less pain and side effects. Example like carpal tunnel syndrome, diabetic, rheumatoid arthritis, some cancer treatments

  • Potential cancer cure

This therapy is also helpful in treating the cell, which may develop to cancer cells, one of the best methods to remove cancer cells in the initial stage


Risks or side effects

In this Red Light therapy, there aren’t any risks or side effects. Using this therapy is safe, natural, and painless. A specialist has alerted that using this Red Light, might cause health risk or thermal or heat burns without proper knowledge. And pregnant, sick person and heart patients can not undergo this therapy  However there may be an issue when

  • Skin exposed to that light for too long
  • Misusing the equipment
  • Maintain issues of equipment
  • Less awareness of equipment

There is only one risk in this therapy that is human eye cannot be exposed to this Red Light, so the user should wear eye protection while undergoing this Red Light therapy.


Red Light therapy is the safest and simple method. These days, Red Light therapy employed in many places like spa, salon, home, hospitals, etc. This therapy is much famous for skincare. The red Light treatment gives promising results to the users. The market host plenty of such gadgets for this therapy and also available online. This Red Light therapy is significantly chemical-free and drug-free. In this, the light wavelength and exposure time are the main factors in the treatment, which changes with the type of body part is undergoing the therapy. Whoever wants to use or undergo therapy should consult a doctor or dermatologist. Only after the doctor’s approval can use, so that no regrets later. One must remember it is not advisable to expose oneself too long to the Red Light.