Why We Love It: This red-light cap is a favorite among a few of the dermatologists we spoke to. Carmen Castilla, MD, a board-certified New York dermatologist, says that she appreciates that it uses a combination of both diode red light lasers and LED, and she’s seen improvements with her own patients after they’ve used the iRestore Cap. The brand completed a double-blind study, run by a board-certified dermatologist, in which 40 subjects were self-treated at home every other day for 16 weeks. Based on the results, iRestore says that 100% of participants saw improvements with the red light treatment, with an average of 43.2% increase in hair growth in 16 weeks.
The Elite cap is the brand’s top-of-the-line model—it offers maximum coverage across the entire scalp (including hairline, temples, top, and crown), with 500 diodes (red light lasers and LED). It targets these areas with an impressive 2,500 mW of power, and treatment only takes 12 minutes a day. For a much lower price point ($499), there’s the iRestore Essential, which is also effective but lacks the same power, coverage, and efficiency of its counterpart.
Best for Medical-Grade Lasers: Capillus Ultra Mobile Laser Cap for Hair Regrowth
Capillus
Spectrum Laser Red Light Therapy Cap
Why We Love It: Dr. Shahbaz highly recommends this easy-to-use cap as it features low-level laser therapy (LLLT) to stimulate hair follicles and encourage natural regrowth. He loves that it’s hands-free, features 272 medical-grade laser diodes (not LEDs), has a discreet design, includes multiple power levels, and offers excellent scalp coverage. What’s more, it’s a pretty low time commitment—the treatment only takes 6 minutes a day—making it easier to stick with consistently (which is when the results really start to show). In fact, based on a clinical study completed by the brand, participants experienced a 51% average increase in hair count after 17 weeks of daily use, without any noted side effects.
