Cold Laser FAQs

 

What is cold laser therapy?

 

Cold laser therapy involves applying low-level (non-thermal) laser light to the skin over injured or painful areas. Unlike surgical or “hot” lasers, it doesn’t cut, burn, or heat tissue. The light penetrates 2–5 cm into the skin, where cells absorb it to trigger biological processes like increased energy production (ATP), better circulation, reduced inflammation, and accelerated tissue repair. It’s also called photobiomodulation or LLLT (low level laser therapy).

 

How does it work?

 

The laser emits specific wavelengths of red or near-infrared light such as 660 nm red or 808 nm infrared. When absorbed by cells (particularly in the mitochondria), it promotes:

• Increased cellular energy and metabolism
• Reduced inflammation and pain signals
• Improved blood flow and oxygenation
• Faster healing of tissues, including muscles, tendons, ligaments, and nerves

 

It’s painless — most people feel nothing, or just mild warmth/tingling.

What conditions can cold laser therapy treat?

 

It’s commonly used for:

• Chronic and acute pain (e.g., back/neck pain, arthritis, knee pain)
• Soft tissue injuries (sprains, strains, tendonitis)
• Carpal tunnel syndrome, plantar fasciitis, tennis elbow
• Sports injuries and whiplash
• Wound healing, inflammation reduction
• Diabetic/peripheral neuropathy or joint issues

 

Results vary by condition, severity, and individual response. It’s often combined with other therapies like chiropractic care or physical therapy.

Is cold laser therapy safe?

Yes, it’s generally considered very safe. The FDA classifies many LLLT devices as non-significant risk. There are no known serious side effects for most people — no heat, no damage to tissue, and it’s non-invasive/drug-free.

Does it hurt? What does a session feel like?

 

No pain at all for the vast majority of people. Sessions are often described as relaxing. Treatment time is typically 5–20 minutes per area, depending on the device and condition.

 

How many treatments are needed?

 

It varies widely:

• Some acute issues may improve after a few sessions
• Chronic conditions often require 8–12+ sessions (e.g., 2–3 times per week initially)
• Maintenance sessions may follow for ongoing benefits

Many people notice some relief after a few treatments, but full benefits can take weeks.

Are there any side effects or contraindications?

 

Side effects are rare and mild (occasional temporary redness or slight soreness).

 

Is it the same as red light therapy?

 

They’re related but not identical. Cold laser therapy uses focused, coherent laser light (specific wavelengths/power) for deeper penetration, while broader red light therapy uses LEDs and has incoherent light.

 

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