9 hair-loss fixes stars like Jennifer Garner, Matthew McConaughey and more swear by

Jennifer Garner has always been the definition of "hair goals," so we were pretty excited to learn the secret behind her gorgeous, healthy, swingy locks. The A-lister has called this formula one of her favorite products because it makes her hair "thick, strong and vibrant." Garner breaks it down, telling The Strategist that her hair "had started to thin from aging and having babies." She credits this product with transforming her locks and bringing them back to life, thanks to its main ingredient, Alpha Keratin 60Ku. It's a protein that, according to Virtue Labs, binds to your hair's damaged and weak points and fills them in to strengthen and repair.

The lightweight, serum-like formula is packed with other ingredients like Kalahari melon seed oil, vitamin E and Tahitian gardenia flower extract. All those ingredients sound pretty, but they're also pretty powerful and work in tandem to hydrate hair and protect it from environmental damage. Users say you'll see an increase in thickness, shine and color vibrancy, as well as a decrease in split ends and frizz. Garner loves this healing oil so much that she became a brand ambassador after being introduced to it by her longtime hairstylist, Adir Abergel, who also happens to be the brand's creative director.

Jennifer Aniston and Gwyneth Paltrow have both talked up these supplements and claim that they help boost hair growth, strength and thickness. Gwyneth started taking them back in 2014 after a Brazilian keratin treatment went sideways. She told Vogue, "It beyond works. I want to buy stock in that company." Jennifer, on the other hand, once said she keeps a stash in rotation with her regular vitamin lineup: "I've got a healthy bag of vitamins that I take three times a day, like Viviscal and your basic omegas and vitamin C. All the good stuff."

The formula skips drugs and leans on a blend of AminoMar Collagen Complex, biotin and vitamin C — ingredients that can help with shedding and support new growth. It's a two-pill-a-day routine, and according to the brand, you can start to notice a difference within a few weeks. 

Nicole Kidman has one of the most enviable heads of hair in showbiz, so it's no wonder that luxury holistic hair brand Vegamour enlisted her as a partner and wellness advocate. After testing the collection, Kidman "found her hair undeniably transformed," saying it became thicker, fuller and "noticeably less frizzy." One of her favorite products is this serum, designed to improve the appearance of thinning hair and leave it looking more voluminous.

The Gro formula skips the harmful chemicals and uses a blend of vegan phytoactive ingredients to help create a pro-growth environment on the scalp. It was developed to boost the look of hair density while reducing visible shedding — all in the name of thicker, fuller-looking locks. According to the manufacturer, you can notice a marked improvement in as few as 90 days. One bottle is sold every 22 seconds, so it's pretty popular — and not just with Nicole.

After publicly sharing her post-COVID hair-loss story via video on Twitter, Alyssa Milano found the help she needed within a few bottles. She praises Nioxin products for helping "tremendously" with hair loss. Designed for a range of hair types, the brand's hair care products are formulated to purify the scalp and promote thicker, fuller hair growth. Each system comes with a trio of basics: a shampoo to clear away sebum and buildup that can clog follicles, a conditioner to help with breakage and moisture balance and a leave-in treatment meant to boost volume and thickness.

Each kit is made with a specific hair type and concern in mind, and you'll get better results by choosing the one that suits your needs. This quiz from Nioxin divides their systems into three categories so you can find the best match.

Matthew McConaughey has been talking about Regenix hair products for over 20 years. He first mentioned that he was able to regrow his thinning hair back after using the brand's products as far back as 2001 during an appearance on The Late Show back when David Letterman was still the host and has talked about it several more times over the years.

The brand uses all-natural ingredients like rosemary, lemongrass, ginger and witch hazel, which work together to enhance natural hair growth. It is worth noting that Regenix isn't regulated by the Food and Drug Administration and its formulas are met with some skepticism by the medical community. That said, if you're looking for a natural, non-invasive approach to hair regrowth, you may end up loving it as much as McConaughey. 

What sets the brand's formulations apart from other hair growth products is that each system is personalized to your hair's own needs. When you buy a kit, you will be sent a questionnaire and instructions on how to mail in a hair sample. The company then does a hair analysis report and comes up with a tailored regimen just for you.

In an interview with Byrdie, Sharon Stone opened up about losing her hair after suffering a stroke back in 2001. "I started using this Augustinus Bader shampoo and conditioner and after-shampoo leave-in conditioner … all the hair I had lost under here, on the sides from the stroke, grew back," she said in the interview. "And I have hair!" While both the shampoo and conditioner from the brand claim to reduce shedding and "support natural hair growth," it was the leave-in treatment she talked about that caught our eye.

Its main ingredient is the brand's signature innovation called TFC8, which supposedly nourishes your scalp and promotes natural hair growth. It's also infused with anti-inflammatory neem extract that can improve follicle health and biotin, which can speed up hair growth.

Jennifer Lopez is known for her thick, gorgeous hair, but sometimes even she needs to give it a bit of a boost. A few years ago, she partnered with Hers, a health company geared toward women, to promote their minoxidil solution hair serum. "When I was coming up, I didn't know how to take proper care of my hair when I first started working in television and film — I had to learn about minoxidil from my hairstylist! And I've been using it ever since," Lopez said.

According to the brand, minoxidil is “clinically proven to help women regrow their hair.” The FDA-approved Hers solution works by stimulating hair follicles and extending the natural growth cycle. TIt’s meant to be applied to the scalp twice a day, with results typically showing up after three to six months of consistent use.

Sofia Richie Grainge shared with Vogue that she started experiencing hair shedding when she was pregnant with her daughter, Eloise. After finding out that these Nutrafol supplements were breastfeeding-safe, she started taking them as soon as she gave birth. "I have worked so hard on my hair for so many years to get it to the place where it's at; I just wanted to get ahead of it," she said.

Sofia is such a fan of Nutrafol's postpartum supplements that she became a partner with the brand. Its Women's Balance supplements have also earned praise from celebs like Alyssa Milano and Nikki Reed — and from our own team of experts. Our writers named them the best overall hair growth supplement for women. And our beauty editor is also a fan, confessing that even though she started out skeptical, she's a convert: "I did not want to like this product. It's waaayy 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 thinning hair, it helped stop my shedding and, after six months, I even saw new hair growth."

TV personality and entrepreneur Lala Anthony first started noticing hair issues during the height of COVID-19. "During the pandemic is when I really noticed the wear and tear on my hair," she told Popsugar. "My hair was just coming out." That loss is what prompted her to launch her hair care brand, Inala.

Specifically, she says the Power Potion has been "magical" for her hair. Lala described the serum as "a 100 percent rice water complex that is extracted from rice grains, [which] is where you find all the vitamins and nutrients you need for hair health." It's also packed with ingredients like biotin and peptides to stimulate new growth.