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Nicole Kidman loves this thinning hair care brand — the dry shampoo's $25 for Prime Day

Our reviewer says Vegamour's Gro Dry Shampoo 'made my hair look instantly thicker' — it's on mega sale for Amazon Prime Day

dry shampoo against a colorful background
Vegamour's dry shampoo is especially good for fluffing up thinning hair. (Amazon)

Amazon Prime Day is always an opportunity to stock up on favorite beauty products, but this deal truly blew my mind. I've been using Gro Dry Shampoo from from the Nicole Kidman approved haircare brand Vegamour for months now. It's transformed my thinning hair into a mane that is much more robust. The only thing I've dislike about it is the cost — but with Prime Day beauty deals, I can stock up on the full-sized product for 30% off. You may want to as well: This dry shampoo is so good it does triple duty — absorbs excess oil, texturizes hair and promotes growth too. Best of all, it made my thinning hair look instantly thicker.

It's not fun to admit this, especially as a beauty editor, but ... I do have a problem with my hair. Throughout my 20s and 30s, I had an enviable mop of thick, shiny strands. It was wavy, easy to manage, held up to over-styling when I felt like it, folded into an ample top knot when I didn't. But sometime in my 40s, things began to change. My hair started shedding, a lot. No matter how many shampoos for thinning hair I tried nor which hair growth supplement I swallowed, it still looked dull and limp and sad. But that all changed when Vegamour's Go Dry Shampoo, my dream middle-aged hair product.

A sale on Vegamour's excellent dry shampoo is cause for celebration — especially if you have thin or fine hair. This is the lowest price I've ever seen on one of my favorite products. 

$30 at Amazon

Here's why: Over the winter, I'd tested dozens of products for our roundup of best dry shampoos, but, honestly, none of them were exactly as good as this new Vegamour discovery, at least for my specific hair needs, at least right now. At 50, my hair is changing rapidly — and I'm far from alone. According to recent studies, nearly half of all women will experience accelerated hair loss during the menopause transition, a condition that is most often attributed to fluctuating hormones but may also be the result of vitamin deficiencies (particularly iron and vitamin D). Hormone therapy can help some women's hair, as can supplemental nutrients (talk to your doctor!). But in the meantime, products like texturizing dry shampoo can give your 'do a bigger, thicker, fuller look. They can also alleviate the need for frequent hair washing, which often leads to breakage and even more loss of fragile strands.

This dry shampoo smells amazing and makes your hair look radiant too. 

$30 at Amazon
Actress Nicole Kidman is a fan of Vegamour's hair-growth products (Getty Images)
Actress Nicole Kidman is a fan of Vegamour's hair-growth products (Getty Images)

This product is transformative in a number of ways. Vegamour is an award-winning brand known for its best-selling hair-growth products (its mega-popular hair growth serum is a Nicole Kidman favorite; she's also a brand ambassador and investor). The company's dry shampoo is formulated with the same scalp-nourishing, growth-promoting ingredients (including mung bean and biotin) as its bestselling serum. It's also made with rice powder which absorbs oil and texturizes the hair. Reviewers over 40 say it makes their hair look fuller and cleaner. In a clinical study sponsored by the brand, more than 75% of users said it reduced hair shedding.

What I love about it is how it sprays on feather-light, is weightless on the scalp and doesn't leave behind a white cast like other dry shampoos I've tried. The scent is expensive-seeming; earthy and subtle, like something you'd find in a bespoke Italian perfumier. But the best part of this product is how it not only extended my shampoo time by a week, it made my hair look instantly thicker, more dense and healthier every day I tried it, like I'd just had the best, bounciest blowout. This Vegamour Gro dry shampoo volumizes like a great old-school hair spray without any of the stickiness or stiff feel. My one complaint: A full bottle costs $36, which is a bit steep — but right now, it's on sale for $25.

Also from Vegamour, Nicole Kidman's favorite top-selling serum was formulated to improve the appearance of thinning hair, leaving it looking thicker and fuller. 

This set includes the wildly popular serum along with Vegamour's patented Gro gummies, which are packed with not only biotin, but vitamins A, B-5, C and E, all of which aim to support hair growth from within. 

"After six weeks of usage, I can tell a notable difference in the amount of hair I am shedding as well as a visible increase in my hair density," said one user. "I have a long way to go, but I am loving the results I am seeing now."

$74 at Amazon

It seems like hooey, but it's actually true: Topically applied rosemary oil has been clinically proven to initiate new hair growth and help prevent further hair loss. In fact, a 2015 study suggests that rosemary essential oil is as effective as minoxidil at growing new hair in mice. 

This is an excellent rosemary oil should you want to try it out: Difeel's formula contains follicle-stimulating biotin, and it's color-safe. It's also paraben-free, highly concentrated and, right now, 40% off. 

"I was a little skeptical about this product initially, but I took a chance and purchased it and let me say, I'm glad I did!" said a fan. "Nice oil for keeping your hair moisturized but it's lightweight, so it doesn't weigh it down. My family is full of different cultures and all of us have different hair types. It works for everyone. The smell is amazing and it didn't irritate my scalp."

$8 at Amazon

At first glance you might think: Why in the world would I need a silk pillowcase? AM I AN EMPRESS? Are we in Hollywood in 1934? Should I start sleeping in a face of cold cream and calling people dah-ling? Do I need a silk robe and high-heeled slippers too? 

But then you learn the facts: Silk pillowcases support the health of both skin AND your hair. Research shows they can help prevent shedding and breakage and can keep your hair from frizzing overnight, leading to less styling and an overall healthier mane. 

$19 at Amazon

I've had good luck plumping up my strands with this volumizing shampoo/conditioner set. It's packed with biotin, vitamin B5, saw palmetto berry extract and coconut oil and manages to be rich and fortifying without being too heavy for fine hair. After just one wash, my hair looked fuller and had more body than usual — and using an ample portion of both products didn't weigh it down.

$60 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 $25 or more.)

Your Prime Day Shopping Guide: See all of our Prime Day coverage. Shop the best Prime Day deals on Yahoo Life. Follow Engadget for Prime Day tech deals. Hear from Autoblog’s experts on the best Amazon Prime Day deals for your car, garage, and home, and find Prime Day sales to shop on AOL, handpicked just for you.

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