Faq

Frequently Asked Questions

Got questions? We have answers. If you are an expert in red light therapy or a beginner, we are here for you every step of the way. 

What is red light therapy?

Red light therapy (RLT) uses specific wavelengths of red and near-infrared light to stimulate your cells’ natural energy production (ATP). This can help improve skin health, support joint and muscle recovery, and boost overall wellness. K2 panels bring professional-grade therapy into your home, designed using 15 years of clinical laser therapy experience.

All K2 panels feature five key wavelengths: 630, 660, 810, 830, and 850 nm (Mini has 630, 660, 810, 850 nm).

  • 630–660 nm: Skin health, collagen, surface healing
  • 810 nm: The “superpower” wavelength — deep tissue repair, muscle recovery, joint support, cellular energy
  • 830–850 nm: Enhanced deep tissue penetration and overall wellness

This combination ensures both surface and deep tissue benefits from a single panel.

Yes — K2 panels are engineered for safe home use and manufactured in an FDA-registered facility, ensuring high-quality standards.

  • UL/CSA certified for electrical safety
  • Zero EMF, stable irradiance
  • Clinically-informed wavelengths for skin, joint, and wellness benefits

While not a medical device, K2 panels are built with professional-grade standards for safe home use.

Absolutely. K2 panels are home-ready, with multiple mounting options (door, wall, or flat), user-friendly sessions (10–20 min), and safe for adults and older teens.

K2 is not recommended for:

  • Children under 12
  • Pregnant or nursing individuals
  • People with skin sensitivities, pacemakers, or epilepsy
  • Anyone with photosensitive medication

Always consult your physician if you have concerns.

K2 is not recommended for:

  • Children under 12
  • Pregnant or nursing individuals
  • People with skin sensitivities, pacemakers, or epilepsy
  • Anyone with photosensitive medication

Always consult your physician if you have concerns.

 If you have specific medical concerns, are on medications, or have chronic conditions, consulting a healthcare provider is recommended. K2 is safe for most adults, but professional guidance ensures peace of mind.

Are there side effects or risks?

Red light therapy is generally safe, with few reported side effects. Some users may experience temporary redness or warmth, which resolves quickly.

Not recommended for children under 12. Older teens can use K2 under supervision and shorter session times.

Red light therapy is generally considered safe and has very few reported side effects. Some individuals may experience mild skin redness or temporary warmth after a session, but this typically subsides within a few hours. If you experience any discomfort or persistent side effects, discontinue use and consult your healthcare provider. 

K2 is not recommended for pregnancy or nursing.

Yes — eye protection is required when using K2 panels, especially for sessions targeting the face or eyes.

  • Red and near-infrared light is safe for skin but direct exposure to the eyes can cause discomfort or potential damage.
  • Always use the provided goggles or recommended protective eyewear for every session.

Generally safe, but consult your physician if on photosensitive drugs.

Avoid if you have epilepsy, pacemakers, severe skin conditions, or are on photosensitive medications.

Can red light therapy help aging skin?

 K2 panels stimulate collagen and elastin production, reducing wrinkles and improving skin tone.

  • 630–660 nm: surface-level skin repair
  • 810 nm: deeper circulation and cellular repair
  • Safe, non-UV, professional-grade therapy at home

Red light reduces inflammation and accelerates skin healing.

  • 630–660 nm: surface inflammation reduction
  • 810 nm: deep tissue support
  • Effective for all skin types

Yes. 810 nm penetrates deep to energize hair follicles, improving circulation and follicle activity for thicker, healthier hair.

Deep-penetrating wavelengths boost ATP production and circulation, reducing soreness, easing joint discomfort, and supporting tissue repair.

  • Skin: 4–8 weeks
  • Muscles: 1–3 weeks
  • Joints: 2–6 weeks
  • Five wavelengths (630–850 nm)
  • 810 nm superpower for deep tissue
  • Zero EMF, high irradiance, 30° beam angle
  • Clinically-designed for safe, effective home use
  • Mini: small areas (face, hands)
  • A80 / A160: medium areas (arms, legs, back)
  • Pro: full-body sessions

High-output LEDs ensure consistent energy delivery every session. Lower-quality panels often underperform.

 Each wavelength targets different tissue depths for comprehensive benefits, from surface skin to deep muscle and joint tissue.

It penetrates deeply, energizes cells, and boosts muscle, joint, and overall cellular recovery, supported by clinical experience.

Technically yes, but multi-wavelength therapy maximizes benefits for both surface and deep tissue.

  • Skin: 630–660 nm
  • Muscle/joint: 810–850 nm
  • Full-spectrum: all wavelengths for overall wellness
  • 5 wavelengths vs 1–2 in most devices
  • 810 nm emphasis for deep tissue
  • Zero EMF, high irradiance, optimized coverage
  • Clinically-informed, home-friendly design

 Yes — Pro or multiple panels deliver full-spectrum coverage for skin, muscle, and joint benefits.

Yes — non-UV light is safe for all skin types when used per instructions.

  • Position 6–18 inches from treatment area
  • Sessions 10–20 minutes per area
  • Minimal clothing
  • Always wear eye protection

3–5 sessions per week; adjust by goals and area.

  • Clinically-informed design
  • Five wavelengths, zero EMF, high irradiance
  • 810 nm “superpower” wavelength
  • Safe, reliable, professional-grade home therapy
How do K2 panels deliver professional results at home?
  • High-output LEDs with stable irradiance
  • Five wavelengths for surface and deep tissue coverage
  • Zero EMF for safe home use
  • Multiple mounting options (door, wall, flat)

Expect international shipping to take approximately 6 to 12 business days, depending on your location and customs clearance at your local post office. 

  • Mini: 630, 660, 810, 850 nm
  • A80 / A160: 630, 660, 810, 830, 850 nm
  • Pro: Full spectrum, large coverage, professional-grade irradiance

Clean with a dry, soft cloth. Panels are built to last and do not require water or chemicals.

What is K2 Light Therapy?

K2 Light Therapy (RLT), also known as photobiomodulation (PBM) or low-level laser therapy (LLLT), is a therapeutic technique that uses specific wavelengths of red and near-infrared light to stimulate cellular function. These wavelengths penetrate the skin and are absorbed by the mitochondria in your cells, leading to a cascade of beneficial biological effects.

When the red and near-infrared light from K2 Light Therapy is absorbed by the mitochondria, it helps increase ATP (adenosine triphosphate) production, which is the energy currency of the cell. This enhanced cellular energy can support improved cellular repair, reduce inflammation, boost collagen production, and promote better circulation, among other benefits.

Red light and near-infrared (NIR) light differ mainly in their visibility and penetration depth. Red light falls within the visible spectrum (620–750 nm) and can be seen by the human eye. Near-infrared light (700–1,400 nm) is just beyond the visible red range and is invisible. Red light primarily affects the surface layers of the skin, while near-infrared light penetrates deeper, reaching muscles and other tissues.

Yes, K2 Light Therapy is generally considered safe when used as directed. It is a non-invasive, drug-free, and natural therapy. Our panels emit non-ionizing radiation, meaning they don’t damage DNA. However, it is always recommended to consult your healthcare provider before starting any new therapy.

  • Over-exposure to K2 Light Therapy may cause burns.

  • Using K2 Light Therapy without protective eyewear may lead to retinal damage. Always use safety glasses.

  • Unaccredited devices may emit high EMFs. Use devices that have CE, RoHS, and FDA approval.

  • Prolonged use can cause headaches in some people. Take breaks and follow the recommended session guidelines.

  • Some users may experience itching or redness. If this occurs, take a break and try again later. If it persists, discontinue use.

  • Excessive use of K2 Light Therapy does not provide additional benefits and may reduce effectiveness.

  • Very sensitive skin may experience slight redness, which typically subsides quickly.

K2 Light Therapy has been studied for a wide range of potential benefits, including:

Skin Health: Reduces wrinkles and fine lines, improves skin tone and texture, increases collagen and elastin production, and supports faster wound healing (acne, scars, burns).

Pain Relief & Inflammation: Helps reduce chronic and acute pain, decreases inflammation in joints and muscles, and can provide relief from arthritis symptoms.

Muscle Recovery & Performance: Supports faster muscle recovery after exercise, reduces muscle fatigue, and may improve athletic performance.

Mood & Sleep: Enhances sleep quality, reduces symptoms of depression and anxiety, and improves overall mood.

Hair Growth: Stimulates hair follicles for individuals experiencing hair thinning or loss.

Circulation: Promotes improved blood flow and oxygenation throughout the body.

Results with K2 Light Therapy vary from person to person and depend on the condition being treated, consistency of use, and individual cellular response. Some users may notice improvements within a few weeks, while others may require several months of regular use to see significant changes. Consistency is key!

Our K2 Light Therapy panels are designed with a focus on:

  • Optimal Wavelengths: Scientifically validated red (630 nm, 660 nm) and near-infrared (810 nm, 830 nm, 850 nm) wavelengths for maximum therapeutic benefit.

  • High Irradiance: Delivers a powerful and effective dose of light to ensure the most from each therapy session.

  • Quality Construction: Built with durable materials and advanced LED technology for long-lasting performance.

  • Ease of Use: User-friendly design for convenient home therapy.

  • Safety Features: Includes cooling systems and precise timing controls for safe use.

K2 Light Therapy combines these features to provide effective, reliable, and safe home light therapy.

K2 Light Therapy uses 5 wavelengths of light. Red light at 630nm, 660nm and non infrared light at 810nm, 830nm and 850nm. Red light is not as deep penetrating as non infrared and offers a range of benefits for skin health, including skin rejuvenation, hair growth and pain relief. Non infrared light is a deeper penetrating non visible light. These wavelengths often used in multiple studies for treating inflammation, swelling from an injury, reducing neuropathic pain, and accelerated wound healing.

Irradiance refers to the power density of light delivered to a surface, measured in milliwatts per square centimetre (mW/cm²). It’s crucial because a higher irradiance means more photons are delivered to your cells in a given time, leading to more effective therapy sessions. Our panels are designed to deliver high irradiance for optimal results

The length of your red and near-infrared light sessions with K2 Light Therapy depends on the device you are using, the condition being treated, and the size of the area. It’s also important to consider your overall health and skin sensitivity when determining the ideal session length and dosage.

It is generally recommended to start conservatively with 3–5 sessions per week, each lasting approximately 1–10 minutes per treated area, allowing your body to gradually adjust to the light. Over time, you can increase your treatment schedule up to a maximum of 20 minutes per day for each area under treatment.

Yes, K2 Light Therapy is generally considered safe when used as directed. It is a non-invasive, drug-free, and natural therapy. Our panels emit non-ionizing radiation, meaning they don’t damage DNA. However, it is always recommended to consult your healthcare provider before starting any new therapy.

Typical K2 Light Therapy sessions range from 10 to 20 minutes per area, depending on the panel’s irradiance and your specific goals. Always refer to your panel’s user manual for the recommended session times.

For best results, we recommend consistent use. Most people achieve optimal results with 3-5 sessions per week. Daily use is also safe and can accelerate results for some conditions.

Yes, we strongly recommend wearing the provided eye protection during your red light therapy sessions, especially when facing the panel directly. While red and NIR light are generally safe for the eyes, direct exposure to high-intensity light can cause temporary discomfort or strain.

For optimal penetration and absorption, it’s best to expose your bare skin to the light. Clothing can block or significantly reduce the effectiveness of the light.

While red light therapy is generally safe, we recommend consulting with a healthcare professional before using it on children. For pets, speak with a veterinarian familiar with photobiomodulation.