Use a low-level laser therapy device

Use an FDA-cleared LLLT device (laser cap, comb, or helmet) for the recommended session length, typically 15-30 minutes every other day. Follow the manufacturer's instructions for your specific device.

Why It Works

Low-level laser therapy delivers red light (typically 650-670nm wavelength) to the scalp, which is believed to stimulate cellular energy production in hair follicles. Several clinical trials have shown statistically significant increases in hair density compared to placebo devices.

Tips

• Only use FDA-cleared devices — many cheap products lack effective laser diodes
• Laser caps are the most convenient form factor for consistent use
• Results take 4-6 months; works best combined with other treatments