The Zenagen Revolve Hair Loss Shampoo is $60 at Amazon, where shoppers say the formula quickly thickens thin hair, minimizes ...

Sophie is a writer for InStyle, where she reports on noteworthy beauty products—including skin care, hair care, and makeup—and, occasionally, covers celebrity style. If you’ve met me ...

At only $13, this thickening ... my healthy hair and I have to admit that my hair now is longer since I am using it. Bonus: It makes your hair smell like a high-end salon! Love love love!" ...