Others say the scalp treatment "revived" their hair. Shoppers with thinning hair swear by the Pacifica Scalp Love Rosemary Mint Hair Serum. The hair care hero promotes growth and protects strands.

Others say the scalp treatment "revived" their hair. Kyra Surgent is a shopping editor at InStyle, where she covers fashion and beauty content. She sources designer deals, reports on fashion trends, ...