Losing strands? Amazon’s best deals of the week on hair growth products start at $4

File this silicone brush under “things you don’t think you need until you try them.” Regular scalp massages are one of the best and first steps you can take if you want to stimulate hair growth.

This brush makes everything easy – just apply your shampoo or hair oil and go to town in circular motions for a minute or two. Not only will you help unclog your scalp pores and improve circulation, but the entire process will feel amazing.

Grab the accessory while it’s 50% off.

This lightweight, scalp-health-boosting spray was developed with the help of dermatologists to bring volume, bounce and lift to even the finest hair.

It’s formulated with vitamins B and E, plus nourishing peptides to texturize hair at the roots without making it crunchy or dry like similar treatments. The result is soft, silky, fuller locks – for less than $10.

“I was looking for a product with a root lifting effect that didn’t leave my scalp itchy or sticky,” said a fan. “This is a really good product. It smells great. It also doesn’t make my hair greasy, so I can go a few days without washing it. I also don’t need extra product every day.”

It sounds silly, but it’s actually true: topically applied rosemary oil has been clinically proven to initiate new hair growth and help prevent future hair loss. In truth, a 2015 study suggests that rosemary essential oil is as effective as minoxidil in growing new hair in rats.

This is an excellent rosemary oil if you want to try it: Botanic Hearth’s formula contains follicle-stimulating biotin and is colorless. It also does not contain parabens and is highly concentrated.

A big problem with fine, fine hair is that it’s difficult to find moisturizing and defrizzing products that won’t leave your strands looking limp. Enter OGX’s Lightweight Dry Oil Spray, which helps smooth flyaways, fix split ends, and eliminate frizz and frizz in summer without it feeling oily or weighed down.

“This oil is extremely light, doesn’t weigh hair down and the spray bottle projects the perfect amount with each spray,” said one reviewer. “I have fine hair and it leaves it soft, not greasy and doesn’t lack volume…”

At first glance, you might think, why on earth would I need a silk pillowcase? AM I AN EMPRESS? Are we in Hollywood in 1934? Should I start sleeping with a face full of ice cream and calling people? Yes-ling? Do I need a silk robe and high-heeled slippers too?

But then you learn the facts: Silk pillowcases support skin AND hair health. Research shows they can help prevent hair loss and breakage and prevent hair from frizzing overnight, resulting in less styling and an overall healthier mane.

There’s a lot to love about this salon-quality thickening and moisturizing shampoo and conditioner duo. For starters, it doesn’t contain harsh chemicals. It is safe for all hair types (including colored hair) and is not tested on animals. But the ingredients are the real stars here: biotin, vitamin B, and caffeine are all proven to nourish fine hair follicles and help stimulate growth.

With 11,000 five-star reviews, this popular set is a bargain at 20% off. “My hair has never looked so good” said one reviewer. “My hair is fine, but this doesn’t weigh it down. I also notice a lot less hair loss with my brush and styling tools.”

For more options, check out our roundup of the best shampoos for hair loss.

A rare sale! Nioxin’s award-winning hair treatment works to thin hair on multiple levels, providing hydration and strengthening strands to help prevent breakage, while also deeply cleansing the scalp of follicle clogs like sebum and other oils.

The products are extremely popular, with more than 7,000 five-star Amazon reviewers waxing poetic.

“Perfect for women with hair loss!” exclaims one enthusiastic user. “I tried everything when my hair started to thin as I got older, and nothing worked until I found this hair system. A friend of mine asked me what I used and now she is using it and seeing it [results] with her hair…”

This best-selling hair treatment is a celebrity favorite (including Nicole Kidman) and we can see why: Its wildly popular serum promises to improve the appearance of thinning hair, leaving it looking thicker and fuller.

Also included in the set: Vegamour’s patented Gro gummies, packed with biotin and vitamins A, B-5, C, and E, all aimed at supporting hair growth from within.

“After six weeks of use, I can notice a noticeable difference in the amount of hair I am losing, as well as a visible increase in the density of my hair,” said one user. “I have a long way to go, but I’m loving the results I’m seeing now.”

I’ve had good luck boosting my strands with this volumizing shampoo/conditioner set. It’s packed with biotin, vitamin B5, saw palmetto extract, and coconut oil and manages to be rich and fortifying without being too heavy for fine hair.

After just one wash, my hair felt fuller and had more body than usual — and using an ample portion of both products didn’t weigh it down.

A quick Nutrafol review: I didn’t want to like this product. Is too expensive. And I don’t like swallowing four horse pills every morning. BUT – and this is a big “but” – when taken consistently, Nutrafol really works for hair loss. It helped stop my hair loss, and after six months I even saw new hair growth.

I’ve been using it consistently for two years and it keeps my hair thick, not quite in the 20s, but pretty close. Today is the day to try it while it’s on sale.