We tested viral hair growth serums to bring you the best. These are the ones that'll leave strands thicker and healthier.

InStyle on MSN: My hair is shedding less thanks to the Nicole Kidman-used serum fans call a true miracle for thicker growth

My hair is shedding less thanks to the Nicole Kidman-used serum fans call a true miracle for thicker growth

The Mercury News: These Sephora hair serums provide incredible shine and smoothness

Whether you want to control frizz, boost shine, reduce tangles, enhance texture or protect against damage, you’re sure to find a hair serum to meet your goals.

Daily Express: Shoppers say hair growth serum gives 'thicker hair in 6 weeks' and now its just £25

Thinning hair, hair loss and excessive shedding can take a serious toll on people's confidence, but shoppers claim they've found a serum that can give them "thicker hair in six we ...

Shoppers say hair growth serum gives 'thicker hair in 6 weeks' and now its just £25

Yahoo: Is the Vegamour Hair Serum Worth It? Look at These Before and Afters

Is the Vegamour Hair Serum Worth It? Look at These Before and Afters

HuffPost on MSN: The Brand Behind That 'Botox In A Bottle' Serum Makes A Beloved Hair Growth Serum, Too

The Brand Behind That 'Botox In A Bottle' Serum Makes A Beloved Hair Growth Serum, Too

The Mirror: 'Miracle' serum for thinning hair that 'sells every 30 seconds' now £25 in deal

'Miracle' serum for thinning hair that 'sells every 30 seconds' now £25 in deal

Most people will tell you that a serum, or a certain type of shampoo, or a certain type of conditioner is the secret to luscious, beautiful hair. Unfortunately, that’s usually not always the case.