What is red light therapy?
Red light therapy is the use of red or near-infrared light delivered by LEDs or lasers. Research often describes this broader field as photobiomodulation. Devices vary considerably in wavelength, output, fit, distance, and recommended use, so studies cannot automatically be generalized to every consumer product.
How does light interact with skin?
Light can be absorbed, reflected, or scattered by tissue. Researchers study whether selected light parameters influence cellular signaling and the appearance of skin. This is an active area of investigation, and the quality and relevance of evidence varies by question and device.
Why do device details matter?
Wavelength, irradiance, dose, distance, treatment time, and consistency all shape exposure. Celestia Lurelle publishes these details only when verified for the final product and available through Shopify product records.
What should I expect?
Light therapy should be approached as a gradual self-care practice, not an instant transformation. Follow the exact instructions supplied with the product. Stop use and seek qualified guidance if you have a concern.
Sources
Updated: July 28, 2026. Reviewed for claims clarity by the Celestia Lurelle editorial team. No medical reviewer is represented.