The iRestore Elite Helmet + Battery is on sale, from March 15 through March 31, dropping to $1,879 ($419 off). Considering the helmet alone retails for $1,899, this deal scores you a rechargeable battery at no extra cost.

The additional battery makes the treatments far more convenient. Instead of being tethered to a wall outlet, you can move around during sessions. A single charge lasts roughly two weeks of daily 12-minute treatments, so you won’t even need to recharge often.

IRestore Elite Helmet + Battery for $1,879 ($419 off)

IRestore Elite combines LEDs with its proprietary laser diodes that operate in the 655 to 680 nanometer range; the combination is designed to penetrate deeper than standard red light therapy, while the LEDs help distribute the light evenly across the scalp for maximum efficacy. Treatments take just 12 minutes a day, but like most routines, consistency is crucial. Fortunately, the included storage case makes it easy to keep up the habit even when you’re traveling.

WIRED reviewer Julia Forbes spent 16 weeks testing the iRestore Elite on both herself and her husband, who are dealing with different degrees of hair thinning and loss. Within two weeks of consistent use—alongside iRestore’s shampoo, conditioner, supplements, and serum—her husband started noticing baby hairs sprout along his receding hairline and more fullness at the crown. Forbes discovered that the treatments help prevent eczema flare-ups on her scalp.

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