What Can Affect Hair Health in Women?

The way our hair looks can be greatly influenced by a long list of possible causes. Anything from stress to genes to nutrition can impact hair health. More of than not, changes result from a combination of different factors.

Studies in recent years suggest that, when combined with a healthy lifestyle, certain vitamins and minerals can help support hair health in women.*[4]

​

Here are the top ingredients thought to support women’s hair health*:

According to a review conducted by the Council for Responsible Nutrition in 2021, supporting hair health was one the top 5 reasons adults in the USA chose to turn to dietary supplements.[1]

Always visit a medical professional for a proper diagnosis regarding any concerns you may have with your hair.

A variety of nutrients are thought to help support women’s hair health.*  [4] The "inside-out" approach is popular among many women because opting for more extreme and expensive treatments may involve harsh chemicals or cost a lot of money.  

The way our hair looks and feels can impact not only a person’s physical appearance but their self-esteem and mood as well. Hair thinning is, unfortunately, something that many women may have to deal with at some stage in their life. For example, approximately 30 million women in the United States suffer from some form of hair loss. [2] 

What Can Be Done About It?

Some factors, like genetics or aging, are out of our control. That being said, there are certain steps you can take to feel more in control of your hair.

• With Biotin, Collagen, Keratin, and Hyaluronic Acid
• Vitamin-Mineral Blend
• Easy to Swallow Capsules
• Made in the USA with Globally Sourced Ingredients
• Free Shipping on Orders Over $75

Based on 3739 Reviews of Primal Harvest

Our Choice

All hair supplements are NOT created equal.

Unfortunately, some generic hair supplements may not meet your needs or expectations.

Here are some factors to try to avoid when shopping for a hair supplement:

What To Try To Avoid In A Hair Supplement*

Top Nutrients For Supporting Hair Health*

Common Factors That May Impact Hair Health In Women*

• Genetics*
• Age*
• Poor diet*
• Unhealthy lifestyle choices*

• Environmental factors
• Digestive issues*
• Stress or shock*
• Damaging hairstyles*

The Stages of Hair Growth

1. Anagen: The growing phase

2. Catagen: The transition phase

3. Telegen: The resting phase

Hair Growth Complex by Primal Harvest takes the top spot, with a blend of premium ingredients delivered in just two capsules per day. This holistic formula features a range of vitamins and minerals, including vitamins C, B3, B6, and B12, as well as the minerals calcium, zinc, and copper. It combines 5000 mcg of biotin with an exclusive ingredients called RGen-Bio™, an extract made from sesbania leaf, a plant-based source of biotin. The addition of type II collagen, hyaluronic acid, hydrolyzed keratin, and silicon from horsetail extract round out this exclusive formula.

Hair Growth Complex is third-party lab tested and made in the USA with globally sourced ingredients. The brand also offers a convenient Subscribe & Save program which means you can order Hair Growth Complex through their convenient and hassle-free subscription service. By signing up for a subscription you get 20% off all products plus free shipping.

This hair support supplement delivers great value and quality at a reasonable price point. To top it off, Primal Harvest offers a 90-day money-back guarantee for all of their products. 

• Contains vitamin C, zinc, copper, B vitamins, and horsetail extract
• With type II collagen, hyaluronic acid, and keratin
• Certified third-party testing
• Made in the USA with globally sourced ingredients
• 90-day money-back guarantee

PROS

CONS

• Only available online
• Due to popularity, sometimes runs out of stock

BOTTOM LINE

A+

GRADE

by Nutrafol

PROS

• Clinical testing for safety and effectiveness  
• With biotin, vitamin C, zinc and horsetail extract, 
• Unique ingredient blends
• Subscription service

CONS

• Price
• 4-capsule serving size
• Marine collagen (not suitable for seafood allergies)
• 30-day money-back guarantee

BOTTOM LINE

Women's Hair Growth Nutraceutical by Nutrafol is an advanced hair care formula that comes in the form of four capsules per day. It features biotin, vitamins A, C, and D, and marine collagen as its primary ingredients. While this formula contains a wide range of ingredients, it is also formulated with marine collagen which means it may not be suitable for all consumers. Additionally, at 4 capsules per day, this may not be the most convenient supplement to use for everyone. 

3. Women's Hair Growth Nutraceutical

B+

GRADE

OUR CHOICE

[1] Peyravian N, Deo S, Daunert S, Jimenez JJ. The…Aspect of Male and Female Pattern Hair…. J Inflamm Res. 2020;13:879-881. Published 2020 Nov 10. doi:10.2147/JIR.S275785.

[2] Daniells, Stephen. “CRN Survey: 80% of Americans Are Now Using Dietary Supplements.” Nutraingredients, William Reed Ltd, 22 Oct. 2021, https://www.nutraingredients-usa.com/Article/2021/10/22/CRN-survey-80-of-Americans-are-now-using-dietary-supplements. 

[3] Linus Pauling Institute Micronutrient Information Center, Biotin.

[4] Scientific Opinion on the substantiation of health claims related to biotin and energy-yielding metabolism (ID 114, 117), macronutrient metabolism (ID 113, 114, 117), maintenance of skin and mucous membranes (ID 115), maintenance of hair (ID 118, 2876) and function of the nervous system (ID 116) pursuant to Article 13(1) of Regulation (EC) No 1924/2006.

[5] de Araújo, et al., Use of silicon for skin and hair care: an approach of chemical forms available and efficacy, An Bras Dermatol. 2016 May-Jun; 91(3): 331–335.

To see a list of our other references, please click here. 

CITATIONS

DISCLAIMER: This scientific research is for informational purposes only. The results reported may not necessarily occur in all individuals. Primal Harvest provides this information as a service but does not endorse it. This information should not be read to recommend or endorse any specific products.

• Biotin — Also known as vitamin B7, biotin is often used to support hair and nail health. Researchers believe that there is a link between biotin deficiency and hair health loss. This nutrient plays an important role in healthy cell formation and is essential for the healthy metabolization of fats, amino acids, and carbohydrates.* [3, 4]
• B-Vitamins — These essential vitamins help to carry out a number of processes in the body and are also important for supporting hair health.*
• Horsetail Extract (Silica) — This extract is a natural source of silica, a mineral composed of silicon and oxygen, which is important for healthy collagen. Research suggests that horsetail extract may support hair strength and shine, as well as scalp health.* [5]
• Vitamin C — This antioxidant-rich vitamin possesses numerous benefits for healthy hair. It is used by the body to protect against oxidative stress, support skin (and scalp) health, and is also needed to create collagen. Vitamin C helps the body absorb iron, an important mineral for hair health and overall wellness, and normal hair growth.* 
• Zinc — Zinc is a trace mineral that is important for maintaining hair and scalp health.* 
• Keratin  — This is the main type of protein found in hair which is responsible for the strength and elasticity of hair and is essential for maintaining healthy hair.* 
• Collagen — Collagen is the most abundant protein in the human body and is key for maintaining skin and scalp health.* 

Note: These statements are not intended to diagnose, treat, cure, or prevent any disease or condition, nor are they intended to be substitutes for professional medical advice. Always consult your physician or other qualified healthcare provider for accurate advice, diagnosis, and treatment plan. Individual results may vary.

Note: These statements are not intended to diagnose, treat, cure, or prevent any disease or condition, nor are they intended to be substitutes for professional medical advice. Always consult your physician or other qualified healthcare provider for accurate advice, diagnosis, and treatment plan.

• Not Third-Party Tested — Choose a hair supplement that has been independently third party lab tested and manufactured in the USA to guarantee premium quality and safety.
• Titanium Dioxide — A food coloring agent widely used to whiten supplement capsules.*
• Artificial Flavors — Avoid hair supplements that contain artificial flavors. These products may contain ingredients such as high-fructose corn syrup, artificial sweeteners, and other unnecessary additives.

5. Viviscal Hair Growth

PROS

• Features biotin, vitamin C, and horsetail extract
• 2 tablet serving size 

CONS

• 30-day money-back guarantee
• Marine collagen complex not suitable for seafood allergies

BOTTOM LINE

Viviscal Hair Growth is a twice-daily tablet with ingredients like vitamin C, zinc, iron, biotin, and niacin. The price for a one-month supply the price is fair, and it features a wide range of essential vitamins and minerals. However, it is formulated with marine collagen which means it may not be suitable for everyone. You may also want to note that it only comes with a 30-day money-back guarantee.

C

GRADE

Top Hair Vitamin Supplements 2025

Key Ingredients

Try To Avoid

Important Criteria

Biotin

Zinc

Vitamin C

Vitamin B6

Vitamin B5

Horsetail Extract

Calcium

No Titanium Dioxide

Hair Strong by HUM Nutrition

Women's Hair Growth Nutraceuticalby Nutrafol

Clinical Formula by Hair La Vie

Viviscal Hair Growth 

by Viviscal

90d Money-Back Guarantee

Third Party Tested

Subscribe & Save Program

Note: We try to update product information as often as we can. Please visit product websites for more information.

2. Hair Strong

by HUM Nutrition

PROS

• Formulated with biotin, zinc, and Fo-Ti root extract 
•  Clean label project certified 
• 3rd party lab tested

CONS

• Missing some traditional hair vitamins (like Vitamin C and B5) 
•  Doesn't include some key premium ingredients (collagen, hyaluronic acid, keratin)

BOTTOM LINE

Hair Strong by HUM Nutrition offers a streamlined approach to hair support with its clinically tested, one-capsule formula. While it may not contain every traditional vitamin or premium ingredient found in more expensive supplements, it delivers key nutrients like biotin (5,000 mcg), zinc, and specialized ingredients like Fo-Ti root extract and PABA in a clean, vegan-friendly formula.

The formula is Clean Label Project certified and third-party tested, making it a solid choice for those seeking an effective and clean hair growth supplement.

A

GRADE

4. Clinical Formula

by Hair La Vie

PROS

• Comprehensive 20-ingredient formula 
• Made in USA with third-party testing 
• Contains premium ingredients (collagen, saw palmetto)

CONS

• Higher price point (up to $59/bottle)
• 3-capsule serving size

BOTTOM LINE

Clinical Formula combines 20 hair-supporting ingredients, including biotin, vitamins, minerals, and premium additions like hydrolyzed collagen, saw palmetto, and a proprietary botanical blend with reishi mushroom and amla fruit. While the formula is third-party tested and manufactured in the USA under strict quality standards, the three-capsule serving size and higher price point ($44-59 per bottle) may not appeal to everyone. Despite its impressive ingredient list and manufacturing quality, some users might prefer a more streamlined, cost-effective option with a simpler dosing schedule.

B

GRADE