Best Hair Growth Supplements (2026) Reviewed
Thinning hair, excessive shedding, or slow growth can stem from stress, hormonal shifts, nutritional gaps, or genetics. The right supplement addresses these root causes from the inside out. Here are the best hair growth supplements for different needs and budgets.
What to Look For
- Clinically studied ingredients — Look for supplements with research-backed compounds like biotin, saw palmetto, marine collagen, or keratin peptides that have demonstrated efficacy in trials.
- Root cause targeting — The best formulas address multiple factors like DHT production, stress hormones, and nutritional deficiencies rather than just one pathway.
- Biotin dosage — While biotin supports keratin production, doses above 2,500mcg may cause breakouts in acne-prone individuals. Some formulas skip biotin entirely.
- Gender-specific formulations — Men and women experience hair thinning differently. Men’s formulas often include DHT blockers like saw palmetto, while women’s may address hormonal fluctuations.
- Timeline expectations — Most supplements require 3-6 months of consistent use before visible results. Look for brands that set realistic expectations.
Best Hair Growth Supplements
Nutrafol Women’s Hair Growth Supplement — Best Overall
- 1-MONTH SUPPLY: One (1) bottle of Nutrafol Women Hair Growth Supplements that promote faster-growing, visibly thicker, fuller, stronger hair (1,2)
- FOR WOMEN AGES 18-44: Physician-formulated hair supplement that improves hair growth for women ages 18-44 with all hair types by targeting 6 root causes of thinning hair, including stress, lifestyle and nutrition
- RESULTS IN 3-6 MONTHS: Take 4 capsules once daily for visible results in 3-6 months. In a clinical study, 90% of women saw improved hair overall and 84% saw less shedding after 6 months (2)
- SCIENCE-BACKED INGREDIENTS: Featuring a proprietary blend of 21 vitamins, minerals, and natural ingredients, including Ashwagandha, Marine Collagen Peptides and Tocotrienol Complex
- THE #1 DERMATOLOGIST-RECOMMENDED HAIR GROWTH SUPPLEMENT BRAND*: Nutrafol Women Hair Growth Supplements are clinically proven for faster-growing, visibly thicker, longer, stronger hair (1,2) (*according to IQVIA ProVoice survey for 12 months ending March 31, 2023)
Nutrafol dominates the hair supplement market with clinical backing and a whole-body approach to hair health.
This physician-formulated supplement targets six root causes of thinning including stress, hormones, metabolism, and nutrition. The patented Synergen Complex uses bio-optimized phytonutrients that work synergistically. Clinical studies show visible improvements in hair growth, thickness, and reduced shedding within 3-6 months.
- Pros:
- Clinically proven results in peer-reviewed studies
- Addresses multiple root causes of thinning
- 100% drug-free formula
- Dermatologist recommended
- Cons:
- Requires 4 capsules daily
- Premium price point
Best for: Women ages 18-44 seeking a comprehensive, clinically-backed solution for thinning hair.
Viviscal Hair Growth Supplements for Women — Best Clinically Proven
- CLINICALLY PROVEN HAIR GROWTH & REGROWTH SUPPLEMENT – Backed by 25+ years of research, Viviscal helps women with thinning hair, hair loss, or shedding achieve thicker hair and fuller hair
- NOURISHES HAIR FROM WITHIN – Marine collagen plus Biotin, Zinc, and Vitamin C feed hair follicles essential nutrients found in leading hair vitamins for women’s hair growth
- RESULTS IN AS LITTLE AS 3 MONTHS – 100% drug free hair growth supplement supports stronger, healthier strands from stress, hormones, postpartum hair loss, or aging
- SAFE FOR ALL HAIR TYPES – Effective for color-treated, fine, or thinning hair, this biotin and collagen supplement promotes thicker hair and healthier-looking strands
- CONVENIENT 1-MONTH SUPPLY – Includes 60 tablets for women’s hair growth, thicker hair, and natural hair regrowth; take two tablets daily for optimal results
Backed by over 25 years of research and 10 clinical trials, Viviscal has one of the longest track records in hair supplements.
The proprietary AminoMar marine collagen complex is the star ingredient, derived from key marine proteins that nourish hair follicles from within. Combined with biotin, zinc, vitamin C, and iron, this drug-free formula supports thicker, fuller hair in as little as 3 months. Works for all hair types including color-treated.
- Pros:
- 25+ years of clinical research
- Proprietary marine collagen complex
- Only 2 tablets daily
- Safe for all hair types
- Cons:
- Contains fish-derived ingredients (not vegan)
- Not suitable for shellfish allergies
Best for: Anyone wanting a well-researched, trusted supplement with decades of clinical evidence.
Nutrafol Men’s Hair Growth Supplement — Best for Men
- 1-MONTH SUPPLY: 1 bottle of Nutrafol Men Hair Growth Supplements, a clinically tested hair supplement for men that visibly improves hair growth, thickness and scalp coverage (1)
- FOR MEN EXPERIENCING HAIR THINNING: Physician-formulated supplement that improves hair growth by targeting 6 root causes that can trigger thinning hair, including stress and hormones like DHT
- RESULTS IN 3-6 MONTHS: Take 4 capsules daily for visible results in 3-6 months. In a clinical study, 84% of men experienced improved hair quality and 72% saw improved scalp coverage after 6 months (1)
- SCIENCE-BACKED INGREDIENTS: Featuring a proprietary blend of 21 vitamins, minerals, and natural ingredients, including Tocotrienol Complex, Saw Palmetto, Circumin and Ashwagandha
- THE #1 DERMATOLOGIST-RECOMMENDED HAIR GROWTH SUPPLEMENT BRAND*: Nutrafol Men Hair Supplements are clinically tested to visibly improve hair growth and scalp coverage (1) (*according to IQVIA ProVoice survey for 12 months ending March 31, 2023)
Nutrafol Men specifically targets DHT and stress—the primary drivers of male pattern thinning—without compromising sexual performance.
This formula includes saw palmetto to reduce DHT conversion, ashwagandha for stress support, and marine collagen for hair strength. Clinical studies show improved scalp coverage in 72% of men after six months. Unlike finasteride, this 100% drug-free approach doesn’t carry risks of sexual side effects.
- Pros:
- Targets male-specific hair loss causes
- No impact on sexual performance
- Clinically tested for scalp coverage
- Includes stress-targeting adaptogens
- Cons:
- 4 capsules per day required
- Results take 3-6 months
Best for: Men experiencing hair thinning who want a drug-free alternative to finasteride.
Wellbel Women — Best Clean Formula
- PHYSICIAN FORMULATED: Wellbel Women nourishes from wthin (trademark), providing the building blocks to increase collagen, elastin, and keratin to promote healthy hair growth.
- CLINICALLY RESARCHED INGREDIENTS: Wellbel Women contains no hamrful fillers. Is vegan, gluten-free and non-GMO ingredients. Backed by science and 100% drug-free.
- BALANCED DOSE OF BIOTIN: Offers a balanced dose of biotin (500mcg) to minimize risk of unwated side effects from excessive Biotin such as breakouts, rashes and acne; this allows for youthful, vibrant skin.
- MSM, a natural anti inflamatory and a source of sulfur which is essential for the regeneration of collagen in hair and skin.
- CONSISTENCY IS KEY: Take 3 capsules once daily to nourish your hair, naturally. Many people share visible results within 90 days. Subscribe & Save to reach your hair's fullest potential. For 18+ and all hair texures from 1a-4c.
Physician-formulated with a balanced biotin dose to minimize breakout risk while delivering results.
Wellbel takes a cleaner approach with only 500mcg of biotin—far lower than competitors—reducing the risk of acne and rashes. The formula includes MSM for collagen and keratin production, saw palmetto for DHT regulation, and betaine HCl for better nutrient absorption. Vegan, gluten-free, and free from harmful fillers.
- Pros:
- Low biotin dose minimizes breakout risk
- Vegan and gluten-free
- No artificial colors or fillers
- Small business brand
- Cons:
- Requires 3 capsules daily
- Less clinical research than larger brands
Best for: Those with acne-prone skin who want a clean, minimal-ingredient formula.
Sports Research Biotin 5,000mcg — Best Budget
- ENERGY PRODUCTION SUPPORT: Also known as Vitamin B7, Biotin plays an important role in metabolizing carbohydrates, fats & proteins. This once-a-day formula makes it easier to get the essential micronutrient*
- HEALTHY HAIR & SKIN: Healthy hair and skin require consistent keratin synthesis—the protein found in our cells. Our biotin supplements give you a chance to increase these production levels naturally, leading to results you can both see and feel*
- VEGAN CERTIFIED: Our biotin is Vegan Certified and encapsulated in the world’s only non-GMO verified, bovine, and carrageenan-free, Plantgel capsule. It’s filler-free, formulated with organic coconut oil, and Manufactured in the USA in cGMP-compliant facilities
- PREMIUM, POTENT FORMULAS: Take your pick between our High Potency Biotin 2,500 mcg, Extra Strength Biotin 5,000 mcg, and Max Strength Biotin 10,000 mcg—all gluten-free, soy-free, and made with cold-pressed 100% organic coconut oil
- THE SPORTS RESEARCH DIFFERENCE: Founded in Southern California in 1980, Sports Research is a family-owned business born from a passion for fitness and wellness. Our goal is to embrace the sport of life through research-backed products created for every body—inside and out
A straightforward, high-quality biotin supplement with organic coconut oil for enhanced absorption at a fraction of premium prices.
This vegan-certified formula delivers 5,000mcg of biotin in a unique Plantgel capsule made from tapioca—one of the few Non-GMO Project Verified capsules on the market. The organic virgin coconut oil carrier improves bioavailability. One softgel daily makes it easy to maintain consistency. A 4-month supply costs less than one month of premium alternatives.
- Pros:
- Excellent value (4-month supply)
- Vegan certified with plant-based capsule
- Enhanced absorption with coconut oil
- Only 1 softgel daily
- Cons:
- Single-ingredient formula (biotin only)
- May cause breakouts in sensitive individuals
Best for: Budget-conscious buyers who want pure biotin without extra ingredients.
Lemme Grow Hair Growth Supplement — Best Biotin-Free
- GROW THICKER HAIR: Formulated with clinically-studied Keratin Complex (Cynatine HNS) to grow thicker, fuller hair in 12 weeks, reduce hair shedding from everyday activities and boost hair shine and brightness. Promotes scalp and follicle health from the inside out.*
- RESULTS IN 30 DAYS: Take 2 capsules once daily for visible results. In a clinical study, our Cyantine Keratin Complex reduced hair shedding in 30 days and showed thicker, stronger hair in 12 weeks.*
- COLLAGEN SUPPORT: Formulated with Silica, an important mineral shown to aid in the production of collagen and glycosaminoglycan, and L-Cysteine, an important amino acid to support hair health.*
- VITAMINS & MINERALS: Formulated with Zinc, Copper, Niacinamide, Vitamin C and B6 for ultimate hair health. Biotin-free formulation for acne-prone skin.
- TRUSTED & TESTED INGREDIENTS: Gluten-free and non-GMO. No high fructose corn syrup, artificial sweeteners or synthetic colors. Made in the USA with locally and globally sourced ingredients. 3rd party tested for strength and safety.
A biotin-free formula using clinically-studied keratin peptides for those who break out from biotin supplements.
Lemme Grow features Cynatine HNS, a patented keratin complex shown in clinical trials to reduce shedding in 30 days and promote hair growth in 12 weeks. The formula includes L-cysteine, bamboo silica, vitamin C, niacin, and zinc—all supporting keratin synthesis without biotin. Perfect for acne-prone individuals who’ve had adverse reactions to high-biotin supplements.
- Pros:
- Completely biotin-free
- Clinically-studied keratin complex
- Visible results in 30 days (reduced shedding)
- Gluten-free and non-GMO
- Cons:
- Newer product with less long-term data
- Premium pricing
Best for: Anyone who experiences breakouts or adverse reactions from biotin supplements.
Nature’s Bounty Optimal Solutions Hair Growth — Best Drugstore
- CLINICALLY SHOWN RESULTS (1): Experience thicker, fuller hair in just three months with our Optimal Solutions Hair Growth supplement; providing structural support for existing hair growth for noticeable improvement (1)
- ADVANCED HAIR COMPLEX: Our hair growth complex combines Arginine; Silicon; and Biotin for hair growth women; providing vital nutrients that support healthier; thicker hair (1)
- EASY DAILY USE: Women can enjoy the convenience of our Hair Growth supplement at 1 capsule per day; simplifying your routine while delivering nutrients directly to support existing hair growth and thickness (1)
- GREAT VALUE FOR MONEY: Nature's Bounty Hair Growth provides excellent value for maintaining your hair health (1)
- BACKED BY TRUSTED EXPERTISE: From the number one brand for hair; skin and nails (2); benefit from 50 years of Nature's Bounty dedication to quality in hair skin and nails vitamins; providing reliable supplementation for hair skin and nails health (1)
An accessible, science-backed option from the #1 hair, skin, and nails brand available at most drugstores.
This Advanced Hair Complex combines arginine, silicon, and biotin—three key nutrients for keratin production and hair structure. The convenient one-capsule-per-day format makes it easy to stick with. Backed by 50 years of Nature’s Bounty quality standards and widely available at pharmacies and grocery stores nationwide.
- Pros:
- Only 1 capsule daily
- Widely available at drugstores
- Trusted brand with 50-year history
- Affordable price point
- Cons:
- Less comprehensive than premium formulas
- Limited clinical data specific to this product
Best for: Those wanting an easy-to-find, affordable option from a trusted brand.
Philip Kingsley Density Healthy Hair Complex — Best for Vegans
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Trichologist-formulated supplements designed specifically for vegans and vegetarians who struggle to get hair-supporting nutrients from diet alone.
Developed by Philip Kingsley’s team of trichologists with over 60 years of hair science expertise, this formula addresses common nutritional gaps in plant-based diets. Contains vitamins D, C, and B12, plus biotin, iron, copper, selenium, and essential amino acids like L-lysine and L-cysteine. The holistic approach supports hair from the inside out.
- Pros:
- 100% vegan and vegetarian friendly
- Developed by trichology experts
- Addresses plant-based diet nutrient gaps
- Includes essential amino acids
- Cons:
- Requires 2 capsules daily
- Less widely available than mainstream brands
Best for: Vegans and vegetarians who need targeted nutritional support for hair health.
FoliGROWTH Ultimate Hair Growth Vitamin — Best DHT Blocker
- SUPPORT FULLER THICKER HAIR with TRUSTED HAIR GROWTH SUPPLEMENT for Women and Men. Support optimal thyroid function, liver health, stress, vitamin D, and iron levels. Uses patented hair growth ingredients: Opti MSM and clinically developed cellular support with 5000mcg of Biotin, Saw Palmetto, Hyaluronic Acid, and Vitamin D3, along with 28 herbs and vitamins
- GLUTEN FREE EXTRA STRENGTH HAIR LOSS SUPPLEMENT and VEGETARIAN FORMULA ENHANCES Thicker Fuller Hair Growth, Stronger Nails, Anti-Aging for the skin with high quality ingredients. SUPPORTS Thyroid production of Iodine from Natural Atlantic Kelp and Helps Cleanse the Liver with Alpha Lipoic Acid and Fo-Ti.
- TARGET HAIR LOSS due to Nutritional Deficiencies, Thyroid issues, Low hemoglobin, Stress, Low Vitamin D, Medications, Poor diet, Veganism, and Vegetarianism in Men and Women. Reinforces Skin Health with L - Cysteine and Pine Bark Extract.
- SCIENTIFICALLY RESEARCHED, 3RD PARTY TESTED, and CERTIFIED. TRICHOLOGIST DEVELOPED. Manufactured in a Southern California with Global Ingredients, GMP-Certified Facility. Gluten Free, Soy Free, Wheat Free, and Vegetarian Hair Growth Pills.
The only hair supplement accepted by the American Hair Loss Association, developed by a certified trichologist with 19 years of clinic experience.
FoliGROWTH packs 28 herbs and vitamins including patented OptiMSM, 5,000mcg biotin, saw palmetto, hyaluronic acid, and vitamin D3. The formula supports thyroid function, liver health, and addresses multiple factors behind thinning. Especially effective for those with vitamin D deficiency, anemia, thyroid issues, or postpartum hair loss.
- Pros:
- American Hair Loss Association accepted
- Developed by certified trichologist
- Comprehensive 28-ingredient formula
- Addresses thyroid and iron-related thinning
- Cons:
- 3 capsules daily required
- Large capsule size
Best for: Those with underlying health factors like thyroid issues, anemia, or vitamin D deficiency contributing to hair loss.
Verdict
For most people, Nutrafol Women offers the most comprehensive, clinically-backed approach to hair health, though it comes at a premium price. Those on a budget should consider Sports Research Biotin for pure biotin support or Nature’s Bounty for a more complete drugstore option. If biotin causes breakouts, Lemme Grow’s keratin-based formula provides an effective alternative.
