What is a red light therapy hat and should men use one for hair loss?
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 08, 2025 · 14 min read
If you are staring at your hairline in the mirror and wondering what is a red light therapy hat and whether it can save your fade, you are not alone. Here is how these glowing caps work, what the science says, and how to decide if one fits into your hair-loss game plan. “A red ...