Best Red Light Therapy for Hair Growth: WIRED-Approved (2026)

After 16 weeks of daily use, our WIRED testers saw visible hair regrowth with these red light therapy devices.

iRestore Elite Laser Hair Growth System Review: Surprisingly Effective

After just two months, my husband saw enough hair regrowth that his college friends commented on it.

CurrentBody LED Hair Growth Helmet Review: Baby Hairs Abound (2026)

This FDA-cleared red-light helmet helps spur hair growth and is Bluetooth-enabled with a comfortable design. But don’t expect results overnight.

6 Best Beard Trimmers (2026): Full Beards, Hair, Stubble

WIRED has been testing beard trimmers for six years. Our favorite is compact, reliable, ridiculously adjustable, and offers a five-year warranty.

NAD+ Supplement 101: Possible Benefits and Precautions Explained (2026)

What is NAD+? Here’s how it works in your body, why it matters, and if supplementation is worth the hype.

HigherDose Red Light Hat Review: Scalp Savior (2026)

Turns out, red light isn’t just for your face. HigherDose’s Red Light Hat has given me the best hair and scalp I’ve had in years.

16 Best Heat Protectant Sprays for Wet and Dry Hair (2026)

I’ve spent almost a year testing dozens of heat protectants for hair. Whether you’re blow-drying, curling, or straightening, these are the best formulas I’ve found.