The Light Journal

How Long Does an LED Mask Take to Work?
How Long Does an LED Mask Take to Work?
What the trials actually measured, when they measured it, and why the first fortnight will feel like nothing is happening. Read more...
Red Light Therapy Masks vs Panels: What Actually Reaches Your Face
Red Light Therapy Masks vs Panels: What Actually Reaches Your Face
This comparison is almost always written by people who sell panels. Here is the arithmetic, including the parts that favour them. Read more...
Perimenopause and Your Skin: What Changes, and What Light Therapy Can Actually Do
Perimenopause and Your Skin: What Changes, and What Light Therapy Can Actually Do
The timeline nobody explains, the reason your routine stopped working, and an honest account of where a light mask fits. Read more...
How to Choose an LED Face Mask: The Seven Specifications That Matter
How to Choose an LED Face Mask: The Seven Specifications That Matter
A buyer's guide built on numbers you can check, rather than promises you can't. Read more...
FDA Cleared, Approved, or Registered? What LED Mask Labels Actually Mean
FDA Cleared, Approved, or Registered? What LED Mask Labels Actually Mean
Three phrases that sound almost identical, describe three very different things, and appear on packaging with roughly equal confidence. Read more...
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How Much Power Does an LED Face Mask Need?
Irradiance, dose, and the ninety-second calculation that tells you whether a mask can do anything at all. Read more...