Many factors can impact hair growth -- vitamin deficiencies are a major one. While eating leafy green vegetables can help with this, sometimes getting all the nutrients needed through food can be difficult. Fortunately, certain supplements can boost your overall health, support hair growth and help you achieve thicker hair.
That said, it’s important to consult your doctor before making major changes to your diet or health routine. If thinning hair or hair loss is a concern, they can provide a proper diagnosis and tailored guidance.
Our Picks
What are the best vitamins for hair growth?
The many vitamins and minerals that can help maintain healthy hair and hair growth are already in your diet. Studies have found that the following vitamins have contributed to promoting hair growth. These include but aren't limited to:
- Vitamin A
- Vitamin B7
- Vitamin C
- Vitamin D
- Vitamin E
- Zinc
Best hair growth vitamins of 2025
Best overall vitamin for hair growth
Pros
- Inexpensive compared to other hair supplements
- Verified by the United States Pharmacopeia
- A bottle will last you 120 days
Cons
- Only contains biotin, while other supplements incorporate multiple vitamins
- Not vegan (contains beeswax)
Biotin, also known as vitamin B7, is a water-soluble vitamin that supports healthy hair, skin and nail growth. It is especially useful in breaking down foods such as proteins and carbohydrates, boosting energy. Nature Made's Biotin supplement contains 1,000 mcg of biotin.
The softgels are gluten-free and contain no artificial dyes or colors. Each bottle has 120 softgels, which is a 120-day supply. Take one daily to maintain healthy skin and hair. There is a note on the side of the bottle saying that biotin can interfere with some lab tests. Always consult a physician before undergoing lab work on this supplement.
Best gummy vitamin for hair growth
Pros
- Grapefruit flavored
- National Sanitation Foundation and B-Corporation certified
- Sold in many common stores such as Target, CVS and Walgreens
Cons
- Two gummies contain 2 grams of added sugar
- Each container only has 60 gummies
Olly Undeniable Beauty flavored gummies contain vitamin C, vitamin E, biotin and keratin. Vitamin C plays a key role in the production of collagen, and vitamin E aids in protecting and healing skin. Keratin, a protein that already exists in our hair, skin and nails, is important in maintaining healthy hair.
Each serving of Olly gummies accounts for 17% of your daily value of vitamin C, 50% of your daily value of vitamin E and 8,333% of your daily value of biotin. It should be noted that there is not a recommended amount of daily intake of keratin.
If you don't like the flavor of grapefruit, try out this sugary strawberry delight from Nature's Bounty instead.
Best vegan vitamin for hair growth
Pros
- Packed with antioxidants
- The bottle is made from 100% ocean-bound plastic and is fully recyclable
- The website presents you with a short questionnaire and then matches your answers with vitamins recommended by nutritionists
Cons
- One bottle will last only 30 days
- Only contains one vitamin (vitamin E)
Hum Red Carpet is a vegan supplement that contains vitamin E, black currant oil (seed), gamma-linolenic acid and alpha-linolenic acid. Black currant oil is an antioxidant that is believed to boost your immune system and is said to help prevent wrinkles and other signs of aging. GLA and ALA, both found in black currant oil, are omega fatty acids that help with human development and growth.
Each serving contains 66% of the daily recommended amount of vitamin E. There isn't a set daily value for the other ingredients, but there is 1,000 mg of black currant oil, 150 mg of GLA and 120 mg of ALA.
Best budget vitamin for hair growth
Pros
- Contains 23 essential vitamins and minerals
- No added sugar or fish oil
- Brand can be found in any major grocery store or retail stores like Walmart
Cons
- Have to take three at one time
- Contains soy, tree nuts and artificial colors
Nature's Bounty Hair, Skin and Nails multivitamin is a softgel supplement that contains vitamins A, B6, B12, C, D, E, thiamin, riboflavin, folate, biotin, pantothenic acid, iron, zinc, selenium, manganese, argan oil, para-aminobenzoic acid, choline bitartrate, alpha lipoic acid, equisetum arvense, hydrolyzed collagen and hyaluronic acid.
Vitamins A, C and E support healthy skin, hair and nails, while hyaluronic acid fights aging skin such as wrinkles. The included vitamins and minerals in this Nature's Bounty multivitamin range from 17% (iron) to 16,667% (biotin) of your recommended daily value.
Best vitamin for men's hair growth
Pros
- Vitamins cater exactly to men and men's hair issues
- One of the few vitamin supplements for men's hair on the market
- Gluten and dairy-free
Cons
- By far the most expensive on this list
- You have to take four capsules a day
Nutrafol is a relatively new subscription-based hair vitamin brand. Nutrafol offers hair vitamins for women, women's postpartum, women's balance and men.
Each bottle of Nutrafol Men contains vitamins A, C, D, biotin, iodine, zinc and selenium. In addition, there are 1,720 mg of Nutrafol's Synergen Complex and 575 mg of Nutrafol Blend. The men's Synergen Complex includes hyaluronic acid, palm extract, collagen and fruit extract. The Nutrafol Blend includes root and fruit extract.
Best vitamin for women's hair growth
Pros
- Vitamins cater exactly to women and women's hair issues
- Contains all of the essential vitamins for hair strengthening
- Made for women ages 18 to 44
Cons
- By far the most expensive on this list
- You have to take four capsules a day (each bottle lasts 30 days)
Each bottle of Nutrafol contains vitamins A, C, D, biotin, iodine, zinc and selenium. In addition, there are 1,680 mg of Nutrafol's Synergen Complex and 530 mg of Nutrafol Blend.
The women's vitamins contain more vitamin C than the men's but less of both the Synergen Complex and Nutrafol Blend. The women's Synergen Complex contains more collagen than the men's, as well as more keratin in the Nutrafol Blend.
Factors to consider when buying vitamins for hair growth
Keep these factors in mind when looking for vitamins for healthy hair growth.
Daily vitamin recommendations
If you aren't hitting your daily recommendations of essential vitamins, then your hair can most likely benefit from vitamin supplements. If you know that you are deficient in vitamin A or vitamin C, for example, look for a hair supplement that helps you meet this nutritional gap.
Keep in mind that hair loss can be due to an underlying medical condition. Always contact your doctor with your concerns before starting any vitamin supplement.
Dietary restrictions
If you are vegan, dairy-free or gluten-free, certain vitamins are made for you. Bottles will state on the label if they were made without gluten, dairy or animal products.
Verifications
The FDA doesn't regulate dietary supplements but a few verifications help ensure the product you're buying is safe to use.
Those verifications include:
- United States Pharmacopeia: A nonprofit that sets standards for dietary supplements.
- National Sanitation Foundation: This ensures standards set for the facility are met.
- Consumer Lab: Private company tests supplements for accuracy of ingredient identity, content and purity.
- Dietary Supplement Verification: This program ensures any product with a USP-verified label contains accurate, pure ingredients and has been manufactured using Good Manufacturing Practices.
How we chose the best vitamins for hair growth
The vitamin supplements for this list were selected based on price, accessibility, quality and vitamin and mineral quantities. We also took into account third-party verifications, dosage and customer reviews. The vitamins that made this list are the best of the best out there right now.