Red light therapy, also known as low-level laser therapy (LLLT) or photobiomodulation (PBM), involves the use of low-intensity red or near-infrared light to stimulate cellular function and promote various physiological effects. The science behind red light therapy is rooted in the interaction between light and biological tissues at the cellular level. Here are some key aspects of the science behind red light therapy devices.

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Red and near-infrared light, a phenomenon known as photobiomodulation, significantly influences mitochondrial function by being absorbed by chromophores, particularly cytochrome c oxidase within the mitochondria. This interaction triggers a change in cytochrome c oxidase, leading to increased electron transfer and enhanced cellular respiration. Scientific studies support that red and near-infrared light exposure increases the production of adenosine triphosphate (ATP), the primary energy source for cells. These findings have led to exploring clinical applications in wound healing, neurodegenerative disorders, and musculoskeletal injuries.

Red Light Therapy induces the release of nitric oxide from cells, leading to vasodilatory effects and enhanced blood flow. In a 2009 study published in the "Journal of Photochemistry and Photobiology B: Biology," exposure to red and near-infrared light increased nitric oxide production in human umbilical vein endothelial cells. Another study in 2003, published in the "American Journal of Physiology - Heart and Circulatory Physiology," demonstrated the vasodilatory effects of low-level laser therapy on rat skeletal muscles, attributing the increased blood flow to the release of nitric oxide.

Red light therapy's impact on collagen synthesis, a fundamental protein for skin health, is supported by scientific evidence. A study published in the "Journal of Investigative Dermatology" in 2014 investigated the effects of red light therapy on human skin fibroblasts, focusing on collagen production. The researchers found that exposure to red light at specific wavelengths significantly increased collagen synthesis, promoting the formation of new collagen fibers. This enhanced collagen production contributes to improved skin tone, increased elasticity, and a reduction in wrinkles and fine lines. The study provides valuable evidence supporting the positive influence of red light therapy on collagen synthesis, highlighting its potential as a non-invasive and effective approach for enhancing skin health and addressing signs of aging.

Scientific studies support the analgesic effects of red light therapy, which aids in pain management by reducing inflammation and modulating pain signaling pathways. For example, a 2018 study on osteoarthritis-related knee pain demonstrated a significant decrease in pain scores and inflammation markers with red light therapy. Another study in 2016 highlighted the therapy's ability to modulate pain signaling pathways. These findings endorse red light therapy as a promising non-pharmacological approach for pain relief, making it valuable for individuals dealing with various pain-related conditions


Etherea red light therapy is generally considered safe for a broad range of individuals. It can be used by adults of varying ages to address concerns such as skin health, pain management, and overall well-being. Individuals should follow safety precautions outlined in the user manual, including proper eye protection and adherence to recommended treatment durations. Overall, the therapy's versatility makes it suitable for many, but individual health considerations and professional guidance are crucial for safe and effective use. Please see some general considerations below:

Who can use Solace Red Light Therapy?

Using Etherea Red Light Therapy on children should be approached with caution. Due to a child's developing skin and eyes, we recommend consulting with your healthcare professional before continuing with treatment. If approved by your healthcare professional, ensure you adhere to safety guidelines outlined in the user manual and always supervise children.Red Light Therapy is considered safe for the elderly and can provide many benefits for age-related concerns, however it is essential to consider specific health concerns before use to ensure suitability.

Pregnant individuals should consult with a healthcare provider before using red light therapy, especially if the treatment involves the abdominal area, to ensure its safety during pregnancy.

Individuals with specific health conditions, such as epilepsy, should consult with a healthcare professional before using red light therapy, as certain light frequencies may trigger seizures.

Persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the appliance in a safe way and understand the hazards involved.

Precautions during use

Your Etherea Red Light Therapy device included complimentary light blocking goggles. We recommend wearing these during use of the device to provide added protection and to prevent eye strain. Do not look directly into the LEDs at any time.

Don’t use the device on open or fresh wounds. Individuals with sensitive skin or skin conditions should be cautious and monitor for any signs of irritation during and after Etherea Red Light Therapy sessions. If there are concerns, consultation with a dermatologist or healthcare provider is recommended.

Never use the Red Light Therapy in combination with products that contain heat producing Ingredients (e.g Deep Heat) as this may burn your skin.

Adhere to the recommended treatment durations and frequencies specified in the user manual. Overexposure to Red Light Therapy may lead to adverse effects or discomfort. We recommend keeping each therapy session under 20 minutes and ensure you do not use the device whilst sleeping.

How to look after your Solace Red Light Therapy device

Before using the red light therapy device, thoroughly review the user manual provided by us, as it contains crucial information on device specifications, recommended usage, and safety guidelines. To ensure safe operation, avoid using the device on or near heated surfaces, keeping it at temperatures below 60°C. Prevent potential eye strain or discomfort by directing the light away from the eyes during use, we have provided complimentary eye blocking goggles for your use. Additionally, maintain proper ventilation by not covering the cooling fans while operating the device. Position the Red Light Therapy device at a safe distance to prevent unnecessary exposure.

To store a red light therapy device effectively, store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid exposing it to moisture, and ensure that the device is clean and free from dust before storing. Additionally, keep the device in a secure location where it won't be knocked over or bumped.

Ensure the device is unplugged before cleaning, and avoid getting moisture into any openings or connectors. Use a soft, lint-free cloth to wipe the device's surfaces, including the treatment area and controls. Don’t touch the device directly with wet hands or skin.

Don’t hang, lift or carry the device by its cord. If the cord gets damaged, don’t use the Device. Regularly clean it using the information above and Inspect the device for any signs of damage, check power cords and connectors. Store it in a cool, dry place away from direct sunlight.