Best vitamins for hair growth
By Ulta Beauty Advisors | Published August 2026
All products featured are available at Ulta Beauty. Ulta Beauty Advisors select products independently. Prices and availability are subject to change. This guide is for informational purposes and does not constitute medical advice. Consult a healthcare provider before beginning any supplement regimen.
What vitamins are linked to hair growth
The nutrients most consistently linked to hair growth are:
Biotin (Vitamin B7): Biotin supports keratin synthesis, which is the structural protein that makes up the hair shaft..
Iron: Iron deficiency is one of the most common nutritional causes of hair shedding in women,
Zinc: Zinc supports hair follicle function and protein synthesis.
Vitamin D: Vitamin D receptors are present in hair follicles, and vitamin D deficiency is associated with alopecia in peer-reviewed research. Vitamin D insufficiency is common in people who spend limited time outdoors.
Niacin (Vitamin B3): Niacin is included in many hair supplement formulas based on its role in cellular energy metabolism and scalp circulation.
Saw Palmetto: Saw palmetto is a plant extract included in some hair supplements for its potential to inhibit the conversion of testosterone to DHT, a hormone associated with pattern hair loss.
How to read a hair vitamin label
Three things to check before buying:
1. Is this a deficiency-correction formula or a broad support formula?
Products like Nutrafol use a multi-ingredient approach targeting multiple pathways including stress response, DHT, inflammation, and nutrition. Products like a basic biotin gummy target one mechanism. Neither is inherently better, but they serve different customers at different price points.
2. What is the biotin dose?
Many hair vitamin products lead with biotin. Doses above 10,000 mcg (10mg) per day are common in the supplement market. There is no established evidence that higher doses produce greater hair benefit than lower doses. Check the per-serving dose on the Supplement Facts panel rather than relying on label headlines.
3. Does it include iron?
Most hair growth supplements do not include iron because iron supplementation without confirmed deficiency is not recommended. If iron deficiency is a contributing factor in your hair loss, a separate iron supplement under medical guidance is the appropriate path rather than a general hair vitamin.
Product picks
Nutrafol Women
Hair Growth Supplement | $88.00
Shop Nutrafol Women at Ulta →
Nutrafol Women uses a multi-target approach called Synergen Complex, which combines marine collagen, ashwagandha for stress response, saw palmetto for DHT reduction, and vitamins and minerals including biotin, vitamin D, vitamin E, and zinc.
Nutrafol recommends three to six months of consistent daily use before evaluating results.
Key specs: Synergen Complex with ashwagandha, saw palmetto, marine collagen, biotin, vitamin D, vitamin E, zinc
Viviscal Hair Growth Supplements for Women
Hair Growth Supplement | $45.99
Shop Viviscal Hair Growth Supplement at Ulta →
Viviscal Hair Growth Supplements for Women combines a marine collagen and fish-derived protein complex with biotin, zinc, vitamin C, and iron. That combination addresses the nutritional side of hair shedding from multiple angles: marine collagen and biotin support the keratin structure of the hair shaft, zinc supports follicle function, vitamin C aids collagen synthesis, and iron addresses one of the most common nutritional contributors to hair shedding in women.
Key specs: Marine collagen and fish-derived protein complex (AminoMar) - Biotin - Zinc - Vitamin C - Iron
Moon Juice SuperHair Daily Hair Nutrition Supplement
Vegan Daily Hair Supplement | $66.00
Shop Moon Juice SuperHair at Ulta →
Moon Juice SuperHair is a vegan daily hair nutrition formula combining a bioavailable multivitamin base with adaptogens and botanicals. The full ingredient list includes organic ashwagandha root extract (KSM-66), saw palmetto, horsetail grass extract, organic kelp, pumpkin seed powder, biotin, iron as iron bisglycinate, zinc as zinc bisglycinate, and a full vitamin complex covering A, five B vitamins (B1, B2, B3, B5, B6), folate as L-methylfolate, B12 as methylcobalamin, C, D3, E, and K2.
Key specs: Vegan - Organic ashwagandha (KSM-66) - Saw palmetto - Horsetail grass extract - Organic kelp - Pumpkin seed powder - Biotin - Full A, B, C, D3, E, K2 vitamin complex - Zinc bisglycinate - Iron bisglycinate
OLLY Undeniable Beauty Gummy Supplement with Biotin Vitamins
Biotin Gummies for Hair | $15.99
Shop OLLY Undeniable Beauty Gummy Supplement with Biotin at Ulta →
OLLY hair gummy vitamins are a daily beauty supplement with hair-supportive ingredients rather than a targeted clinical-dose hair growth formula.
Key specs: Biotin-forward gummy formula
Viviscal Men’s Hair Supplement
Men's Hair Growth Supplement | $57.99
Shop Viviscal Men’s Hair Supplements at Ulta →
Viviscal Man uses the AminoMar marine complex, adjusted for a men's hair support context, with biotin, vitamin C, horsetail extract, and flaxseed extract.
Key specs: AminoMar marine complex - Biotin - Vitamin C - Horsetail extract - Flaxseed extract
Frequently asked questions
How can you tell if you have a vitamin deficiency affecting your hair, skin, or nails?
Hair shedding, brittle nails, or skin changes can have many causes, so symptoms alone can't confirm a vitamin deficiency. A healthcare professional can review your diet, medications, health history, and symptoms and may recommend blood tests to check nutrients such as iron, vitamin B12, vitamin D, or other nutrients when appropriate. It's best to identify and address the underlying deficiency rather than taking high-dose supplements without knowing whether you need them.
What is the difference between Nutrafol Women and Nutrafol Women's Balance?
Nutrafol Women is formulated for women ages 18 to 44. Nutrafol Women's Balance is formulated for women 45 and older, with adjustments to the adaptogen and hormone-support components of the formula to address perimenopause and menopause-related hair changes. Both are available at ulta.com/brand/nutrafol.
Is biotin or B12 better for hair?
Neither biotin nor B12 is universally better for hair. Both nutrients support normal cellular function, but supplements are most likely to help when you have a deficiency. Biotin deficiency is rare, while low B12 can occur in people with certain dietary patterns or absorption issues and may contribute to hair changes. If you aren't deficient, taking extra biotin or B12 isn't proven to make hair grow faster or thicker.
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