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'Baby hairs everywhere': This serum, down to $31, targets thinning tresses

It's loaded with ingredients (most of them natural!) that are clinically proven to cleanse your scalp and promote a denser mane.

I don't know about you, but nobody warned me that my hair would start thinning in midlife. Then I turned 40, and bam — and so many of my friends were noticing it too. It turns out that 40% of women experience visible hair loss by age 50, and we're all scrambling for a solution. Here's one possibility: Amazon shoppers say that Divi Scalp Serum is a game-changer for troubled tresses, and it's on sale right now for just $31.

Just massage a few drops of this serum into your roots every day — easy-peasy.

Save $17 with coupon
$31 at Amazon

Why is it a good deal? 💰

Leading scalp serums tend to be $50 and up on Amazon, so at $31, this is truly a deal. And it's only a couple bucks more than the lowest we've ever seen it go, so now's a good time to try this hair helper if you're curious.

Why do I need this? 🤔

Look inside your medicine cabinet: You probably have countless creams, sprays and serums for your strands. But studies show that the health of your scalp is directly related to the condition of your hair — and now, the hair-care industry is finally starting to develop products that focus on your follicles in addition to the hair shafts themselves.

Divi Scalp Serum is loaded up with ingredients — most of them natural — that are clinically proven to cleanse your scalp and promote fuller-looking hair. Tea tree oil takes care of product buildup and helps curb excessive oil production, both of which can clog your pores if not kept in check. Hyaluronic acid and green tea extract help hydrate and clarify the scalp itself, creating a sound foundation for hair to grow.

That growth is supported by stimulating ingredients like caffeine, peppermint oil and menthol. In one study, caffeine was shown to prolong the growth phase of hair — even more so in women than men. Another study found that peppermint oil is a natural stimulant for hair growth that can even increase the thickness of strands.

Healthy scalp, healthy hair? A growth serum can give your strands a better shot at flourishing. (Getty)
Healthy scalp, healthy hair? A growth serum can give your strands a better shot at flourishing. (Getty)

What reviewers say 💬

Amazon shoppers, by and large, are noticing less hair fall, fuller locks and a cleaner, less oily head of hair when they use this serum consistently. Over 1,300 give it a five-star rating.

Pros 👍

"This product, used every day, has been the biggest game-changer. Doesn't make my hair greasy at all," wrote one shopper.

Other reviewers say that the serum stopped their hair shedding in its tracks. "I added a hair catcher to the shower drain and counted anywhere from 20-100 hairs lost during each shower," one wrote. But after a month of using Divi, "I literally lose zero hairs (max five) when running my hand through my hair. The hair catcher in the shower often only catches a couple of hairs now! It's insane."

"After using this for five months now, I have so many more baby hairs than I did previously. It hasn't translated into a thicker ponytail yet, but I've been pleased with the results so far," a reviewer wrote. Plenty of others are seeing similar growth "around my hairline."

"Finished that bottle in exactly one month and at about that point in time a few people had mentioned my hair was looking fuller," a customer wrote. "So I bought a second bottle and I'm a few weeks in and I must say, for me, this stuff works pretty well."

Cons 👎

A few reviewers experienced a dry or itchy scalp. "I personally had a reaction on my scalp and gave the bottle to my sister," one user wrote. (A good reminder: It's best to spot-test this or any new product before applying it all over.)

Others said they aren't too keen on the smell; for those customers, using the serum at night tends to work best.

According to the brand, 90% of users saw fuller hair in 12 weeks, and 87% said their hair felt more dense. "From severe dandruff and build-up to hair thinning, this product has helped every issue and I couldn't be happier!" said this fan. "I am even seeing new hair growth! There are baby hairs everywhere!"

$31 at Amazon

If you have Amazon Prime, you'll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $35 or more.)

The reviews quoted above reflect the most recent versions at the time of publication.