Thinning Hair? See What Registered Dietitians Recommend

We reveal 2022's top hair growth vitamins for everyday hair loss, according to experts.

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We all know that hair loss is a common sign of aging, but it can often make us feel self-conscious and anxious that the shedding may get worse. So, it’s no mystery why hair growth supplements have become so popular. Hair vitamins offer a nutrient-rich, long-term solution—and all without the serious side effects sometimes associated with other hair restoration methods.

"As a registered dietitian, I've helped patients resolve a number of issues they've faced with their hair simply by using the power of nutrition,” says Registered Dietitian Lauren Cornell. 

But, with so many empty promises in the supplement industry, it’s hard to know which hair vitamins will deliver longer, thicker hair... and which will leave you disappointed. That’s why Smarter Reviews has compiled the available research and narrowed it down to the top 6 quality hair vitamins.

Hair Vitamins Can Benefit People Who Notice The Following As They Age:

  • Areas where the scalp is becoming more visible
  • Thinning & shedding associated with aging 
  • A widening part or receding hairline
  • Hair that feels sparse, fragile, or brittle
  • Finding more hair in the hairbrush or shower drain

How Hair Vitamins Support Healthy Hair Growth

Many factors affect hair growth—such as nutrition, age, hormones, and even stress. Fortunately, certain quality hair vitamins can address everyday hair loss from several of these key angles. 

What To Expect From Quality Hair Vitamins

Month One

You may notice less hair in your brush and shower drain as your follicles are now receiving the support they need. But be wary of companies claiming to deliver dramatically fuller hair in a single month. 

Month Two

After a couple months of nourishing the hair’s growth cycle, run your fingers through your hair—you’ll likely be able to feel the difference and see a visible improvement in the mirror.

Month Three

This is typically when people realize how much thicker and longer their hair has gotten. That’s why we recommend sticking with your new supplement regimen for at least three months.

Consumers should be aware that some hair vitamins on the market may fall short of these results. “Many hair care brands claim their products will help, but not all hair growth solutions are created equal,” warns Lauren Cornell. 

Look for the following ingredients to ensure a hair supplement can back up its claims:

Key Ingredients In A High-Quality Hair Vitamin:

Saw Palmetto

Saw palmetto is a potent berry extract that targets the natural regulation of hormones that play a role in hair loss. However, many of the generic versions of saw palmetto haven't been properly harvested and lack the vital compounds that help block DHT. That's why it’s important to look for a highly bioavailable saw palmetto, such as US Plus® Saw Palmetto, with a minimum 320 mg, which is the dose that studies found to be effective.


This popular nutrient protects and helps rebuild hair from damage due to over-styling or environmental conditions. For best results, be sure to find a supplement with at least 2,500 mcg per serving.

Hydrolyzed Collagen

Collagen works to build keratin (the protein that makes up most of your hair) and promotes blood circulation to the scalp. This process not only helps create new hair follicles but also repairs and strengthens hair before it even leaves the follicle. Plus, collagen can act as a natural antioxidant that protects hair from graying as well as further loss associated with age.


Tocotrienols, a highly potent form of vitamin E, have been shown to promote the immune response and protect against several seasonal and environmental threats, which, in turn, promotes healthy hair growth from within and helps strengthen follicles. We suggest looking for a supplement that lists a clinically studied and patented version of tocotrienols, such as EvnolMax®, at the top of their ingredients.

Reishi Mushroom

This unique ingredient is most commonly used to promote blood circulation, support your immune system, and fight seasonal threats. And, when utilized in a hair vitamin, it can actually encourage circulation to the scalp to stimulate the hair shaft and promote growth.

Flaxseed Oil

This source of Omega-3 fatty acids promotes a healthy scalp along with the shine and appearance of hair.

Avoid These Harmful Ingredients:

Magnesium Stearate

This "flow agent" may seem harmless, but in reality it can be very dangerous in high doses. Unfortunately, most sources for magnesium stearate are genetically modified, and treated with high amounts of pesticides, due to its origins as a cottonseed oil base.

Titanium Dioxide

Widely relied upon in vitamin manufacturing as a coloring agent and binding mineral, titanium dioxide is known to cause health issues in the immune system in large amounts. Low-quality hair vitamin blends typically include this filler.

Top 6 Hair Growth Supplements of 2022

When putting together our rankings, we consider the quality of ingredients, safety, return policies, projected effectiveness, and customer satisfaction.

First, here's a side-by-side comparison of how industry-leading hair growth supplements stack up against each other.

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Below are the final rankings from our beauty editors, complete with detailed reviews of each hair growth supplement:

1. Clinical Formula Hair Vitamins 

a white bottle of hair vitamins

Total Ranking



Overall Grade


  • 20 clean, naturally derived ingredients
  • Offers free shipping on all orders
  • Contains 2 clinically researched ingredients at clinically studied dosages
  • Great user reviews
  • 90-day, risk-free, money-back guarantee
  • Made in the U.S.A. with globally sourced ingredients
  • Featured in Oprah Daily, Elle, Harper's Bazaar, Forbes, Women's Health & Byrdie


  • Only sold in the U.S. & Canada. 
The Bottom Line

Named "Best Hair Growth Products That Actually Work" by Oprah Daily, Hair La Vie's Clinical Formula Hair Vitamins ranks #1 on our list of top hair vitamin blends on the market today.

This hair growth supplement contains biotin, zinc, iron, B-Vitamins with USPlus® Saw Palmetto, and EnvolMax® Toctotrienols at clinically-proven levels to help support healthy hair growth. Their formula also includes a Redensifying Proprietary Blend with amla, reishi mushroom, flaxseed oil, bamboo stem, and horsetail.  

Hair La Vie uses clean, naturally derived ingredients without any toxic components, fillers, or binders. Plus, their 90-day money-back guarantee shows their confidence in their product. With effective results, safe ingredients, and a generous return policy, Hair La Vie wins our #1 spot.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

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2. Hair Hero Vitamins

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Total Ranking



Overall Grade


  • Unique hair growth-supporting components
  • Scientifically formulated

  • 365-day money-back guarantee
  • Made in the US with globally sourced ingredients


  • Optimal results take more time
  • Only sold in the U.S. & Canada
The Bottom Line

In 2nd place, we have Hair Hero by Essential Elements. Their holistic, proprietary blend features important vitamins and minerals shown to nourish and replenish hair for optimal growth support. Plus, this formula is also suitable for all hair types.

Hair Hero is designed to specifically address the hormonal changes, nutrition deficiencies, and everyday stresses associated with hair loss.

Their formula features the top, science-based hair-boosting ingredients we mentioned above, including biotin, folic acid, saw palmetto, and hydrolyzed collagen.

Users reported substantial growth with regular use over time, as well as improved hair texture—reporting that it was both silkier and shinier.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

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3. Hair Growth Supplement

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Total Ranking



Overall Grade


  • Unique hair growth-supporting components
  • Name-brand recognition
  • Scientifically formulated


  • Contains numerous fillers, binders, colors, flavors, and additives
  • Uses synthetic colors and flavorings
  • Limited guarantee
  • Tablets not capsules may reduce max absorption
The Bottom Line

Hair Growth Supplement by Viviscal won our #3 spot on our top 6 list. The ingredients contain a nice assortment of vitamins and other components to help stimulate existing hair growth, but unfortunately, it also includes a plethora of unnatural ingredients, fillers, and unnecessary additives.

There is only 120 mcg of biotin per serving, and the servings come in tablets. The other ingredients included glycerol, silicon dioxide, colors, flavors, cellulose, magnesium stearate, and more. While not the best we found, Viviscal's name brand recognition and customer base were enough to secure this brand as our #3 hair vitamin blend.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

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4. Nutrafol Women

a white box with a black cap

Total Ranking



Overall Grade


  • Vast array of vitamins, nutrients, and minerals
  • Name brand recognition
  • Robust blend of ingredients
  • 3000 mcg of biotin


  • High price point at $88 for one month's supply
  • 30-day return policy
  • No bundle discount
  • Don't disclose dosage of some key ingredients
The Bottom Line

Nutrafol Women came in at #4 in our top 6 list. Smarter Shoppers loved the vast array of healthful ingredients found in the product's proprietary blend, including 3000 mcg of biotin, a slew of vitamins, and many nutrients that complement the overall hair blend.

However, they don't disclose the dosage of ingredients included in their proprietary blends and don't offer a discount for purchasing multiple bottles. Also disappointing was the fact that the company only provides a 30-day return policy, which isn't enough time to see the full benefits.

Still, reviews, Nutrafol's brand recognition, and customer satisfaction landed this unique product at #4 in our list, for good reason.*

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

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5. Hair Essentials Natural Hair Growth

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Total Ranking



Overall Grade


  • Unique vitamin blend
  • Formulated by doctors
  • Solid 90-day, risk-free, money-back guarantee


  • Contains fillers, binders, and unwanted additives
  • Only 350 mcg of biotin
  • Users reported sporadic results if any at all
The Bottom Line

Hair Essentials Natural Hair Growth by Natural Wellbeing took our #5 spot, as it contains a uniquely formulated blend of proprietary extracts, oils, and fruits to encourage the promotion of existing hair growth.

While there were some great vitamins in the ingredients, the product also contained legendary filler magnesium stearate, along with silicon dioxide and cellulose, to round out a handful of unwanted additional ingredients. Some Smarter Shoppers felt that the hair vitamin blend produced results, but most of them didn't notice a difference. Still, when it worked, it worked well enough to earn our #5 pick.

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

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6. SugarBearHair Hair Vitamins

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SugarBearHair Vitamins, 60 Count (1 Month Supply)

Total Ranking



Overall Grade


  • 5000 mcg of biotin
  • Assortment of vitamins
  • Celebrity endorsements


  • Contains fillers, binders, and unnatural additives
  • Uses glucose syrup and sugars to make it sweet
  • Contains carnauba wax
  • Has titanium dioxide
  • Complaints of some unwelcome side effects
The Bottom Line

SugarBearHair's Hair Vitamins wasn't able to crack our top five hair growth vitamin blend list, but it did earn itself a spot on our new "For Your Consideration" list. Endorsed by celebrities, and widely sampled by users, we wanted to call attention to the elements that scored well, and also the elements that didn't. As a hair growth-promoting blend, it contains an assortment of vital nutrients and vitamins to boot. Unfortunately, the product is comprised of sugar and syrup-based gummies, which lessens the impact of the product by equating it to candy. Glucose, pectin, citric acid, sodium citrate, blue color #1, and wax are not exactly conducive to a 100% healthy hair growth-supporting vitamin blend. It also contains titanium dioxide, a terrible filler, so it wasn't high on our list.

*Results are based on the Smarter Reviews Ranking System and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

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  1. Dana Oliver. 06/18/2013. Huffington Post.