The Best Hair Growth Supplements of 2026
Last updated: 05/20/2025
I set out on a mission to find the ultimate hair growth supplement—one that truly delivers on results, quality, and efficacy. With so many options on the market, it can be overwhelming to know which one is actually worth the investment.
Let's be honest—brands aren't always the most transparent, and marketing claims can be misleading. That's why I took a methodical, hands-on approach to testing, ensuring that I could provide an honest, science-backed review.
Below, you'll find a detailed breakdown of my findings, including how each hair growth supplement performs, key factors that influenced my ratings, and the subtle differences that make a big impact.
Note: Why hair supplements work best as part of a system
After 30 years of treating patients, I've seen the same pattern: people buy an excellent hair growth supplement, take it for months, and see minimal results. The supplement isn't the problem—it's using it alone.
Supplements alone can't deliver dramatic results without topicals to stimulate follicles directly, DHT blockers to address hormonal causes, and a personalized approach tailored to your specific type of hair loss.
That's why my #1 pick is a complete hair regrowth system. You'll get the best hair supplement I've tested—plus everything it needs to actually work.
First things first, why choose the right hair growth supplement?
Before we dive into the product reviews, let's talk about why selecting the right hair growth supplement is so important. Many people assume their hair loss is simply genetic or due to age, but other factors—like nutritional deficiencies, stress, or hormonal imbalances—can play a major role.
Here's why finding the right supplement matters:
Uses clinically proven ingredients – Not all hair growth supplements are backed by science. The right formula contains ingredients with proven effectiveness in stimulating hair growth and reducing shedding.
Targets the root cause – Whether it's hormonal imbalance, nutrient deficiencies, or oxidative stress, an effective supplement addresses the underlying issue, not just the symptoms.
Works from the inside out – Unlike topicals that only address surface-level concerns, supplements nourish hair follicles at the cellular level for sustainable, long-term results.
Boosts confidence – Thicker, healthier hair can transform your appearance and improve your overall well-being.
Switching to the right hair growth supplement can make a noticeable difference in just a few months. Now, let's get into the top supplements of 2026 and see which one delivers the best results.
How I Scientifically Analyzed Each Hair Growth Product
I researched and evaluated eight leading hair growth supplements: MDhair, Nutrafol, MaryRuth's, NutraHarmony, Viviscal, Force Factor, Nature's Bounty, and Sports Research Biotin. To ensure fair results, I followed a structured testing process:
Ingredient Effectiveness: Analyzed each formula, considering scientific research and dermatologist approval.
User Insights: Collected real customer feedback from Amazon, Trustpilot, Reddit, and other online platforms.
Clinical Trial Data: Reviewed clinical studies from relevant brands to assess scientific credibility.
Sales Volume Data: Analyzed Amazon best-seller rankings and monthly sales figures as a proxy for real-world effectiveness and consumer trust.
★ Winner ★
MDhair Regrowth Kit
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Sale: Get up to 60% off your first kit (expires soon)
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Fully customized to your hair needs: Unlike supplement only brands, MDhair tailors your treatment with a quiz and scalp selfie analysis, crafting a fully customized kit that targets both the root cause of hair loss and your unique needs.
Noticeable improvement as early as 1 month: Many users see visible results in hair thickness and regrowth within 30 days.
Clinically proven results: Backed by an IRB-verified clinical trial, with 82% of participants reporting an improvement in just 4 weeks.
180-day money-back guarantee: Try it risk-free—if you don't see a difference, get a full refund.
Comprehensive inside-out approach: Combines oral supplements with topical treatments for maximum effectiveness.
Targets multiple causes of hair loss: Addresses thinning due to genetics, hormonal imbalances, stress, nutrient deficiencies, and other unique factors.
Personalized to your needs: AI-powered scalp analysis creates a customized treatment plan tailored to your specific hair concerns.
Exceptional value: A complete hair growth system for up to 50% less than other premium brands like Nutrafol.
Free 24/7 medical support: Access to MDhair's dedicated medical team at no extra cost.
Dermatologist-developed & science-backed: Created with medical expertise to ensure safe and effective results.
What could be better
Only Available Online: Not available in physical stores.
My verdict
MDhair is revolutionizing hair regrowth with a clinically proven and dermatologist-designed approach. Unlike generic, one-size-fits-all treatments, MDhair’s formulas are customized to each individual’s needs, ensuring a targeted and effective solution.
With clinically tested ingredients and a commitment to research, MDhair’s formulations are developed with scientific rigor—backed by real clinical trial data to support their effectiveness. The results? Over 300,000 satisfied customers and countless before-and-after transformations showcasing visibly thicker, healthier hair.
Beyond effectiveness, MDhair offers convenience and personalization. Their delivery model ensures customers never run out of their tailored treatment, while the lightweight, fast-absorbing formulas make it easy to integrate into any routine.
For those seeking a proven, dermatologist-formulated hair regrowth solution with real results, MDhair is a standout choice.
Runner Up
Nutrafol
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Targets stress and hormones: Contains ashwagandha and saw palmetto to address cortisol and DHT—two major contributors to hair thinning.
Published clinical studies: Multiple peer-reviewed studies demonstrate improvements in hair growth, thickness, and reduced shedding.
Multiple formulations: Offers specific versions for Women, Men, Postpartum, and Women's Balance (menopause).
Whole-body benefits: Users report improved sleep, reduced stress, and better skin alongside hair improvements.
What could be better
Very expensive: At $88 per month, it's one of the priciest options on the market—nearly 2-3x more than alternatives.
Four capsules daily: Requires taking four large capsules every day, which many users find inconvenient.
No topical options: Focuses solely on oral supplementation without companion topical treatments for direct scalp application.
Results take time: Most users need 3-6 months of consistent use before seeing noticeable improvements.
Proprietary blends: Some ingredient quantities are hidden behind proprietary blend names, making it difficult to verify dosages.
Limited personalization: No scalp analysis or AI-driven customization—just quiz-based product selection.
No money-back guarantee: Unlike MDhair's 180-day guarantee, Nutrafol doesn't offer a satisfaction guarantee if the product doesn't work for you.
No medical support included: Despite the premium price, there's no access to dermatologists or medical professionals for guidance.
Large capsules: Some users report the capsules are difficult to swallow, especially when taking four at once.
My overall rating
Nutrafol is a solid choice for those who prefer an all-natural, internal approach to hair growth and are willing to invest in a premium supplement. Its blend of vitamins, minerals, and botanical extracts supports overall hair health by targeting stress, hormones, and inflammation.
However, at $88 per month, it's significantly more expensive than competitors offering similar ingredients. The four-capsule daily requirement can also be a barrier for busy lifestyles. While it has strong clinical backing, it works best as part of a comprehensive approach rather than a standalone solution. For those seeking better value with comparable results, MDhair offers a more affordable alternative with the added benefit of personalized treatment plans.
Third Place
MaryRuth's Hair Growth Liquid Multivitamin
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Unique liquid format: Easy-to-take liquid formula with better absorption than traditional capsules—perfect for those who struggle with pills.
Contains Lustriva: Features the clinically-studied Lustriva complex (biotin + silicon), shown to increase hair thickness in as little as 3 weeks.
Clean certifications: Vegan, gluten-free, sugar-free, B Corp certified, and Clean Label Project certified.
What could be better
Taste issues: While many love the peach mango or dragon fruit flavors, some users find the taste too sweet or experience an aftertaste.
Primarily tested in women: The Lustriva clinical research was conducted only on women, though the product can be used by men.
No DHT blockers: Unlike Nutrafol or MDhair, doesn't contain saw palmetto or other DHT-blocking ingredients for hormone-related hair loss.
May cause digestive issues: Some users report stomach discomfort, particularly when taken without food.
Shorter supply: Each bottle provides only 15-30 servings depending on size, requiring frequent reordering.
Not targeted for hair loss: More of a general multivitamin with hair benefits than a dedicated hair growth solution.
No personalization: One formula for everyone—doesn't account for different hair loss causes or individual needs.
No medical support: No access to dermatologists or hair specialists for guidance on your specific concerns.
No money-back guarantee: If it doesn't work for you, there's no satisfaction guarantee for refunds.
My overall rating
MaryRuth's has emerged as a TikTok and social media favorite for good reason—the liquid format offers genuine convenience, and the Lustriva ingredient has clinical backing. It's an excellent option for those who want a daily multivitamin that doubles as hair support.
However, it's more of a general wellness supplement with hair benefits rather than a targeted hair growth solution. Those with hormone-related hair loss or more advanced thinning may need a more comprehensive approach that includes DHT blockers and topical treatments. The liquid format also means shorter shelf life and less precise dosing compared to capsules.
Fourth Place
NutraHarmony Biotin, Collagen & Keratin
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Exceptional value: At just $28/month, it's one of the most affordable comprehensive hair supplements on the market.
Clean formula: Non-GMO, gluten-free, made in a GMP-certified facility in the USA.
What could be better
No clinical studies: Unlike Nutrafol or Viviscal, there are no published peer-reviewed studies on the complete formula.
Basic ingredient profile: Focuses mainly on structural proteins without adaptogens or DHT blockers for hormonal hair loss.
Variable results: Reviews are mixed—some users see dramatic improvements while others notice minimal change.
Newer brand: Lacks the decades of research and brand reputation of established players like Viviscal.
No professional support: No access to dermatologists or medical guidance—you're on your own.
No money-back guarantee: If the product doesn't work for you, there's no satisfaction guarantee or refund policy.
No topical options: Only offers oral supplements without companion serums or scalp treatments for comprehensive care.
Unproven for serious hair loss: May help general hair health but unlikely to address androgenetic alopecia or significant thinning.
No adaptogens for stress: Unlike Nutrafol or MDhair, doesn't include ashwagandha or other stress-targeting ingredients.
Quality concerns: Some Amazon reviews mention inconsistent capsule quality and packaging issues.
My overall rating
NutraHarmony represents the best budget option for those wanting to try hair supplements without a major financial commitment. It's a solid entry point with quality ingredients at an unbeatable price.
However, the lack of clinical studies and DHT-blocking ingredients means it's best suited for general hair health support rather than addressing specific hair loss conditions like androgenetic alopecia. If you're experiencing significant thinning or hormone-related hair loss, a more targeted solution with proven clinical data would be a better investment.
Fifth Place
Viviscal Hair Growth Supplements
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25+ years of research: One of the most established and clinically-studied hair supplements on the market with decades of data.
Proprietary AminoMar complex: Unique marine protein blend derived from key proteins that nourish thinning hair from within.
Wide retail availability: Available at Ulta, Target, CVS, Walgreens, and most drugstores for convenient purchase.
What could be better
Contains fish-derived ingredients: Not suitable for vegans, vegetarians, or those with seafood allergies.
No DHT blockers: Unlike Nutrafol, doesn't contain saw palmetto or other ingredients to address hormone-related hair loss.
Twice-daily dosing: Requires taking tablets twice per day, which some find inconvenient.
Variable pricing: Costs between $34-65/month depending on where you buy and which formula you choose.
No personalization: One formula for everyone—no customization based on individual hair loss causes.
Slow results: Most users need 3-6 months of consistent use to see meaningful improvements.
Dated formula: While clinically proven, the formula hasn't evolved much in 25 years—newer competitors offer more comprehensive approaches.
No adaptogens: Doesn't address stress-related hair loss with ingredients like ashwagandha.
No medical support: No access to dermatologists or hair specialists despite the premium positioning.
No money-back guarantee: If you don't see results after months of use, there's no refund option.
Shark-derived ingredients: The AminoMar complex includes shark cartilage, which raises ethical concerns for some consumers.
My overall rating
Viviscal is a legacy brand with real scientific credibility. If you want a supplement backed by decades of research and multiple clinical trials, Viviscal delivers. Its AminoMar complex is unique in the market and has proven results.
However, the formula feels somewhat dated compared to newer competitors that address hormones and stress alongside nutrition. The fish-derived ingredients also limit its audience significantly. For a more modern, comprehensive approach that includes DHT blockers and personalization, other options may provide better value.
Sixth Place
Force Factor Hair Growth Accelerator
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Delicious soft chews: Individually wrapped berry-flavored chews make daily supplementation feel like a treat rather than a chore.
Contains Lustriva: Uses the same clinically-studied ingredient as MaryRuth's, shown to increase hair thickness in 3 weeks.
Strong Amazon presence: 30,000+ monthly sales with consistent positive reviews—proving real-world effectiveness.
What could be better
Higher sugar content: Gummy/chew formats typically contain added sugars that some health-conscious users prefer to avoid.
Limited ingredient depth: Simpler formula compared to comprehensive supplements like Nutrafol—focuses mainly on Lustriva and biotin.
Brand dilution: Force Factor is primarily known for sports supplements—hair growth isn't their core expertise.
Texture complaints: Some users report the chews are too sticky or hard to chew comfortably.
No DHT blockers: Doesn't address hormonal causes of hair loss like androgenetic alopecia.
No personalization: One-size-fits-all formula without customization for individual hair loss causes.
No clinical studies on full formula: While Lustriva is clinically studied, the complete Force Factor product hasn't been independently tested.
No medical support: No access to dermatologists or hair specialists for guidance.
No money-back guarantee: If the chews don't work for you, there's no satisfaction guarantee.
No topical options: Only offers oral supplements without companion scalp treatments.
Artificial ingredients: Contains artificial flavors and colors that health-conscious consumers may want to avoid.
My overall rating
Force Factor Hair Growth Accelerator is perfect for those who hate swallowing pills and want to make supplementation more enjoyable. The soft chew format is genuinely innovative, and the Lustriva ingredient provides legitimate clinical backing.
However, the gummy format comes with trade-offs—namely added sugars and a simpler ingredient profile. It's best suited for early-stage thinning or as a complement to other treatments rather than a comprehensive standalone solution for significant hair loss.
Seventh Place
Nature's Bounty Hair, Skin & Nails
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Unbeatable price: At $15-20/month, it's the most affordable mainstream hair supplement available.
Available everywhere: Found at every drugstore, grocery store, and major retailer—ultimate convenience.
Trusted brand: Nature's Bounty has been in the supplement industry for over 50 years with a solid reputation.
What could be better
Basic formula: Contains mostly standard vitamins without specialized hair-growth ingredients like saw palmetto or marine proteins.
No clinical studies: No published research specific to this product's effectiveness for hair growth.
Generic approach: Marketed as hair, skin & nails—not specifically formulated for hair loss concerns.
May not address real hair loss: Better suited for general hair health rather than treating thinning or shedding.
Inconsistent results: Many reviews report little to no noticeable improvement in hair growth.
No DHT blockers: Doesn't contain saw palmetto or other ingredients to address hormone-related hair loss.
No adaptogens: Missing stress-targeting ingredients like ashwagandha that are found in premium supplements.
No personalization: Generic formula that doesn't account for individual hair loss causes or needs.
No medical support: No access to dermatologists or hair specialists for guidance.
No money-back guarantee: Standard retail return policies only—no satisfaction guarantee if it doesn't work.
Contains artificial ingredients: Many formulations include artificial colors, flavors, and sweeteners.
My overall rating
Nature's Bounty is the entry-level option for anyone curious about hair supplements but not ready to invest in premium brands. Its affordability and accessibility make it an easy first step.
However, if you're experiencing actual hair thinning or loss, this supplement is unlikely to provide meaningful results. It's essentially a basic multivitamin with extra biotin. For those with real hair concerns, investing in a more targeted solution with clinically-proven ingredients will deliver better value despite the higher upfront cost.
Eighth Place
Sports Research Biotin with Coconut Oil
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Best-selling biotin on Amazon: With 97,000+ reviews and a 4.6-star rating, it's the most popular standalone biotin supplement.
Enhanced with coconut oil: The coconut oil base may improve absorption of the fat-soluble vitamin.
Excellent value: At around $20 for a 4-month supply, it's one of the most cost-effective options available.
What could be better
Biotin alone isn't enough: Research shows biotin only helps hair growth if you're actually deficient—which most people aren't.
No comprehensive formula: Lacks other important hair nutrients like zinc, iron, saw palmetto, or marine proteins.
May cause breakouts: High-dose biotin is known to cause acne in some users—a common complaint in reviews.
Can interfere with lab tests: High biotin levels can skew thyroid and other blood test results—important to disclose to your doctor.
Not targeted for hair loss: Won't address hormonal, stress-related, or genetic causes of hair thinning.
No DHT blockers: Missing saw palmetto or other ingredients that address the root cause of pattern hair loss.
No vitamins or minerals: Missing zinc, iron, vitamin D, and other nutrients important for hair health.
No personalization: Generic single-ingredient supplement that doesn't address individual needs.
No medical support: No access to dermatologists or hair specialists for guidance.
No money-back guarantee: Standard Amazon return policy only—no satisfaction guarantee for efficacy.
No topical options: Only a single oral supplement without companion products for comprehensive care.
Overhyped ingredient: Biotin supplementation has been called into question by dermatologists—most people get enough from diet.
My overall rating
Sports Research Biotin is a solid choice if you specifically need biotin supplementation—perhaps due to a confirmed deficiency or as an addition to your existing supplement stack. The coconut oil delivery is a nice touch, and the price is excellent.
However, for most people experiencing hair loss, biotin alone won't solve the problem. Hair thinning typically has multiple causes that require a multi-targeted approach. If you're looking for real results, a comprehensive hair supplement with multiple active ingredients will provide significantly better outcomes than biotin alone.
Why I Chose MDhair as the Best Hair Regrowth Kit
After researching and comparing all the options, it's clear that MDhair stands out as the best choice for hair growth. Its customized approach, dermatologist backing, and clinically proven results make it the most effective option.
If you're looking for long-lasting, noticeable results with a formula designed for your unique needs, MDhair is the best investment for your hair growth journey.
Click here to try MDhair for up to 60% off, plus a 180-day money-back guarantee.
I hope this guide helps you find the perfect hair growth supplement for your needs. Let me know which one you try—I'd love to hear your experience!
Hi, I’m Dr Harth!
I’ve been a dermatologist for over 30 years, and if there’s one thing I’ve learned, it’s that the little things we do every day—what we put on our skin, what we eat, how we take care of ourselves—can make a big difference. I love breaking down the science of skincare and haircare and making it easy for people to find what actually works.
