Red light therapy (also called low-level laser therapy or photobiomodulation) is one of the few drug-free hair loss treatments with real clinical evidence behind it. This page gathers every guide we’ve written on it, in the order most people need them.
Start Here: How It Works
- Infrared and Red Light Therapy for Hair Growth: Benefits, Side Effects, and Whether It’s Worth It
- Red Light Therapy Wavelengths for Hair: Why 650nm and 808nm Matter
- How Long Does Red Light Therapy Take to Work for Hair?
Is It Safe and Legitimate?
- Red Light Therapy Side Effects: What’s Actually Reported
- Is Red Light Therapy FDA-Cleared? What That Actually Means
Choosing a Device
- Laser Caps vs Combs vs Helmets: Which Red Light Device Is Actually Worth It?
- How Much Do Red Light Therapy Devices Cost?
How It Compares to Other Treatments
- Red Light Therapy vs Finasteride: Which Should You Try First?
- Red Light Therapy vs PRP for Hair Loss
- Red Light Therapy and Minoxidil: Does Stacking Them Actually Work Better?
Specific Situations
New guides on using a red light cap, LED vs laser devices, and spotting fake caps are on the way and will be added here as they publish.
Informational only, not medical advice. See a dermatologist to confirm the cause of your hair loss before starting any treatment.