Dove’s Scalp and Hair Therapy Density Boost Serum is a $8 scalp serum that boosts hair density and growth while targeting scalp irritation, itchiness, and flaking. Shoppers report a healthier scalp, ...

Update, July 11, 2025: We checked all product prices and availability. Our picks for the best hair growth products remain ...

These are the best hair growth oils and serums for everything from fine hair to coarse hair to thinning and balding.

Some people use castor oil for hair growth, but evidence is limited. Castor oil contains ricinoleic acid, which may reduce scalp inflammation.

Bestselling hair growth serum from Kate Middleton’s go-to haircare brand – now 41% off!