Hi AnnE,
Thank you for sharing your experience. We take all customer feedback seriously and would genuinely like to investigate this further.
Red light therapy is not a new or experimental technology. Photobiomodulation using red and near-infrared light has been studied for decades and is widely regarded as safe when used within clinically established parameters.
The Kandyway Red Light Therapy Mask is FDA-cleared, Health Canada-authorized, CE-certified, carries multiple additional medical safety certifications, and is trusted by thousands of customers worldwide. It uses clinically studied 633nm red light and 830nm near-infrared light — wavelengths widely regarded in photobiomodulation research as the gold standard for skin rejuvenation and collagen support.
Our device operates at a controlled irradiance of 35mW/cm², specifically designed to remain within the non-thermal range used in professional photobiomodulation. Many higher-powered devices operating above 60 mW/cm² may generate unnecessary heat, whereas Kandyway was intentionally designed around the clinically researched “sweet spot,” as stronger is not always better in red light therapy.
This is important because heat or blue light (which we dont use) is more commonly associated with pigmentation concerns in sensitive individuals. It’s also important to understand that not all LED devices are the same, and factors such as skin type, pre-existing melasma, medications, skincare actives, sun exposure, and excessive usage can also influence individual skin responses.
At this time, we have been unable to locate any order details associated with your review name. Please email us at hello@kandyway.com with your order number, purchase name, and where the device was purchased so we can verify that you are a Kandyway customer using an authentic Kandyway device and review your case properly. We would also be happy to review any supporting medical or scientific documentation you may have.
Customer safety, transparency, and evidence-based skincare remain extremely important to us, and we are committed to supporting every genuine customer directly.
We look forward to assisting you further.
Kandyway