Class IV Laser Therapy has become a highly regarded option for non-invasive pain management and therapeutic treatments. As this technology grows in popularity, many patients wonder about its safety and potential side effects. This post explores how Class IV lasers work, common and rare reactions, and Aspen Laser’s commitment to safe, effective treatment.

What Does a Class 4 Laser Do?

Class 4 lasers are powerful devices designed to penetrate deeply into tissues, promoting healing and reducing pain through photobiomodulation. They deliver concentrated light energy to cells, stimulating cellular activity, enhancing blood flow, and reducing inflammation. Unlike lower-powered lasers, which target surface-level issues, Class 4 lasers can treat deep-seated conditions like joint pain, muscle strains, and neuropathy. To learn more about the science behind Class IV lasers, read Aspen Laser’s guide on laser therapy systems​​.

Example of a Class 4 Laser: The Aspen Laser Series

Aspen Laser Systems offers several high-performance Class 4 laser devices through our Summit, Ascent, and Apex laser series. These systems utilize multiple wavelengths for optimized therapy, with the Apex Laser Series achieving up to 47 watts across wavelengths  635nm, 810nm, 980nm, and 1064nm. Aspen’s lasers incorporate adjustable settings and innovative dose-dependent treatments for each individual patient, which allow practitioners to adapt treatment for patient comfort and effectiveness precisely.

Where Are Class 4 Lasers Used?

Class 4 lasers are commonly used in clinical environments, including physical therapy, chiropractic care, wound care, traumatic brain injury and cognitive decline, aesthetics, and sports medicine, to reduce inflammation, alleviate pain, and accelerate healing. They’ve proven effective for sports injuries, post-surgical recovery, and chronic pain conditions, making them an essential tool in non-invasive healthcare settings focused on pain management and recovery.

Is Class 4 Laser Therapy Considered Low-Level?

No, Class 4 lasers are not low-level. Unlike Class 3B or low-power lasers commonly used in Low-Level Laser Therapy (LLLT), Class 4 lasers, high level laser therapy (HLLT), operate at much higher power levels (greater than 500 mW). This increased power enables them to penetrate deeply into tissues, making them more suitable for treating musculoskeletal and deep tissue issues. Their powerful effects have made Class 4 lasers a preferred choice for clinicians seeking efficient, effective therapeutic solutions​​. What makes Aspen unique from most Class IV lasers is its ability to bypass the normal thermal response that other lasers create, which allows us to treat all clients directly on the skin. Most class IV lasers have to hold that laser away from the skin because they are so hot, which loses much of the effectiveness and dosage. Not Aspen. We can even treat directly on the skin, on a tattoo – something most LLLT lasers cannot even do.

Are Class 4 Lasers Safe? Potential Side Effects

Safety is paramount in the design of Class 4 laser systems. When used correctly and with standard safety protocols, these devices are safe and effective, with minimal side effects.

Common Side Effects

Redness and Warmth: A slight warmth and temporary redness may occur during and after treatment, as increased blood flow is a sign of the body’s response to therapy. These are mild and expected reactions that often fade quickly.

In general, serious side effects are uncommon, and most patients report little to no adverse reactions. Proper training and adherence to safety protocols are essential in preventing these issues, ensuring that Class 4 lasers remain safe.

Aspen Laser’s Approach to Safety and Efficacy

Aspen Laser’s FDA-cleared devices reflect a commitment to safety and clinical excellence. Here’s how Aspen ensures safe and effective treatments with Class IV lasers:

1. SmartMode Controls: Aspen’s SmartMode feature allows practitioners to fine-tune laser frequency, intensity, and duration. This precision control allows each individual patient to get an appropriate dose for them on each particular day.
2. PowerDose Diodes: The PowerDose Diodes provide a stable, high power output, avoiding sudden intensity spikes that could lead to burns or irritation.
3. Wavelength Multiplexer Technology: This feature enables multiple wavelengths to penetrate different tissue depths, enhancing the therapy’s impact while reducing the risk of overtreatment in a single area.
4. Built-In Safety Protocols: Aspen Laser devices are designed with built-in safety settings, protective eyewear, and patient-response protocols to safeguard practitioners and patients. 

Clinical Research and Positive Reviews for Class IV Laser Therapy

Research supports Class IV laser therapy as an effective treatment for pain relief and tissue healing, especially for chronic and acute injuries. Studies show significant improvements in pain reduction and mobility. According to OSHA’s guidelines on Class IV lasers, these lasers are safe and effective with proper protocols. Aspen Laser’s commitment to Class IV laser therapy research ensures that providers can access top technology and protocols.

Class IV laser therapy is a safe and powerful tool for non-invasive pain management and inflammation reduction, backed by research and technological innovation. With minimal side effects and advanced safety features, Class IV lasers enable healthcare providers to deliver tailored, effective treatments that meet individual patient needs.

For healthcare providers looking to elevate their practice, Aspen Laser’s Class IV systems offer advanced technology, stringent safety features, and a proven track record of positive patient outcomes. Patients can experience faster recovery, deep tissue healing, and significant pain relief with the assurance of Aspen Laser’s dedication to safety and quality.