Low-level laser therapy (LLLT, cl. 3B) and high-level-laser-therapy (HLLT, cl. 4), also called therapeutic laser or soft laser therapy, is used on small and large areas. Directly local on body parts for pain relief, inflammation reduction, wound healing, and tissue regeneration and/or on energy points e.g. ear acupuncture, body acupuncture and reflexology (cl. 3B only).

Main areas of application at a glance:

Musculoskeletal system: Osteoarthritis (e.g., knee joint), arthritis, back pain (dorsalgia, lumbar spine, neck), tennis elbow, golfer's elbow, tendonitis (Achilles tendon), muscle injuries

Wound healing: Chronic wounds (leg ulcers/open sores, pressure sores), acute cuts/abrasions, burns, diabetic foot syndrome

Dermatology: Acne, eczema, herpes simplex, psoriasis, skin lesions

Nerves & ENT: Nerve regeneration, stroke, brain demage

Dentistry: Pain reduction, tissue regeneration after procedures, gag reflex suppression

Sports medicine: Muscle regeneration, rehabilitation after musculoskeletal surgery, prevention of muscle injuries

Deep versus superficial laser irradiation, laser cl. 3B and laser cl. 4 (LightStream)

Penetration depth depends on wavelength (colour) and tissue type. Waves that are very short (below 600 nm) or very long (above 950 nm) do not penetrate deeply.
For example, 500 mW of power is reduced to about 2 mW after passing through 2 cm of tissue. To deliver 2 J to the target tissue, a therapy duration of more than 1 hour is needed. For an area of 5 cm², the therapy duration would be more than one hour. 

Caculation: 15 W provides 2 J of energy in 33 seconds, which equates to a therapy duration of 2 minutes for an area of 5 cm².  

Conclusion: Low power is not suitable for delivering an effective amount of energy to deep target tissue (depth effect) since the exposure time would be too long.  

In the longthe therapist needs both laser types cl. 3B as LaserPen and Physiolaser (small areas, spots and acupuncture points) and cl. 4 as LightStream (large areas, deep penetration in shorter time). 

Laser acupuncture (body acupuncture and ear acupuncture, auriculotherapy) is a gentle, painless alternative to traditional needle acupuncture. There are three main approaches to ear acupuncture: French, German, and Chinese, as well as hybrid forms. Acupuncture points on the ear are stimulated by a laser beam (low-level laser). 

In auriculomedicine (e.g., according to Nogier or Bahr), specific laser frequencies are used to target different tissue layers or functional disorders: 

Nogier frequencies: Regulation of organ functions and tissue layers (ectoderm, endoderm, mesoderm).

Bahr frequencies: Used, among other things, for locating sources of disturbance (e.g., scars or teeth) and for deeper energetic regulation. 

RAC diagnostics: Therapists often use the auriculocardiac reflex (pulse testing) to determine the appropriate points and frequencies for the laser. 

With a professional therapy laser (e.g., the RJ original LaserPen), the frequency sequences should be pre-programmed and accessible at the touch of a button. The acupuncture points can be stimulated with fiber optics (laser needle), the LightNeedle with 12 outlets is recommended.

Buy therapeutic laser devices:

The origional LaserPen cl. 3B

Physiolaser cl. 3B

LightStream cl. 4

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