FollicleLab Pro-Laser™ Scalp Stimulator.

This thing is actually built solid af. The vibration feels crazy good on the scalp too. I got the full set with the roller thing and it really helps my serum absorb. Already seeing less shedding in the shower which is massive for me. Just buy it.

Best $100 I’ve spent on my grooming routine. I use the 0.25mm set with my hair serum and the absorption is 10x better. It’s super easy to use while I'm watching TV at night. My hair feels thicker and definitely has more 'grip' when I’m styling it. Shipping was fast too, arrived in about 8 days

Honestly, I was skeptical. I’ve tried different things and oils and they just made my hair greasy. I’ve been using the Simulator for 5 weeks now after the gym. The red light is intense and the vibration feels great on the scalp. I’m already seeing fuzz coming back in on my temples. Solid build quality, doesn't feel like a toy.