Low-level light therapy (LLLT) uses specific wavelengths of red and near-infrared light — light that's absorbed by cells rather than reflected off skin. This category of light-based therapy has been studied in dermatology for decades, most commonly in the 600-700nm and 800-950nm ranges.

Hair grows in cycles, not continuously. It moves through a growth phase (anagen), a transition phase (catagen), and a resting phase (telogen) before shedding and starting over. Understanding this cycle is why light therapy is typically approached as a long-term routine rather than a one-time treatment.

Because hair growth unfolds over months, not days, research into light-based therapies points to regular, sustained use as the key factor — not the strength of any single session. A steady routine is what allows light exposure to stay in step with the hair growth cycle.

176 tri-chip LED modules — 528 individual light points — are arranged to spread evenly across the hairline, crown, and mid-scalp, so coverage isn't limited to just the top of your head.

CAYAMA combines 660nm red light with 850/940nm near-infrared light in the same session. Red light and near-infrared light are absorbed at different depths, so using both together covers more ground than either wavelength alone.

Adjustable 10-30 minute sessions, a soft breathable fit, and flexible power options (adapter or compatible power bank) mean CAYAMA is built to actually fit into your day — not just your first week.