The 12 Best Hair Growth Serums for Thicker Hair in Days

Dani Austin’s hair care line has a devoted following, in part thanks to this scalp serum (it has over 12,000 reviews!). Containing copper tripeptide-1 for growth, tea trea oil to soothe the scalp and detox, and invigorating menthol and peppermint oil, it helps improve circulation, remove buildup, and give hair an overall thicker appearance.

What the reviews are saying:

“I had a bald spot on the top of my head, and thinning of hair all around. I started using a natural shampoo plus Divi. Man, within of one month of CONSISTENT use my hair grew back and then some!” —Jen