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Difference Between Cold Laser & Class 4 Laser Therapy

In the world of medical technology, laser therapy has made significant strides, revolutionizing the way we approach various health issues. However, you should know that there’re different types of lasers for medical use: class-1, Class-2, Class-3R, Class-3B, and Class-4.

Class 1, 2, and 3R lasers are Low-Level or cold lasers, acting on different energy levels. Class 3B and Class 4 lasers are high intensity lasers. Both LLLT or Cold Laser Therapy in Guelph and High-Intensity Laser Therapy (HILT) or Class 4 laser offer therapeutic benefits, but they differ significantly in terms of their applications and outcomes.

LLLT or Cold Laser Therapy in Guelph

Cold Laser Therapy in Guelph often referred to as red light laser therapy, PBM, therapeutic laser, soft laser, utilizes low-intensity lasers or light-emitting diodes (LEDs) to treat a wide range of musculoskeletal conditions. This therapy has gained popularity for its non-invasive, painless, and safe approach.

Cold Laser Therapy in Guelph is commonly used for chronic and acute pain conditions, tissue repair and healing, skin rejuvenation, etc. The mechanism behind LLLT involves the absorption of light by cells, similar to photosynthesis, which triggers cellular processes, such as increased production of ATP (cellular energy) and the release of endorphins.

Class-4 High-Intensity Laser Therapy

Class 3B and 4 or HILT employs high-power lasers to deliver more intense energy to targeted tissues. Class-4 laser therapy in Guelph works by providing a stronger dose of energy to stimulate healing and reduce inflammation. It can also help improve circulation and decrease pain.

  • Zero infection risk
  • Faster healing
  • Anti-inflammatory
  • Boosts stamina and efficiency
  • Prevents secondary injuries

Conditions Treated with Class-4 Laser Therapy

When it comes to treating underlying conditions, both HILT and Cold Laser Therapy in Guelph are vital. The medical professional will suggest the ideal type depending on your condition and assessment done by him. Conditions treated with HILT include:

  • Arthritis
  • Bone spurs
  • Plantar Fasciitis
  • Tennis Elbow
  • Rotator Cuff Strains
  • Herniated Discs
  • Runner’s Knee
  • Sciatica
  • Ligament injuries
  • Hip Pain
  • Neck and back discomfort


So, before you get Cold Laser Therapy in Guelph, always consult a healthcare provider at Pacific Physio to determine which therapy is most appropriate for your needs.