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While there are many products that aim to promote hair, skin, and nail health, there is limited scientific evidence of their effectiveness. Here, we discuss our top picks from trusted brands.

Here, we discuss our top picks that may help promote shinier and healthier hair, skin, and nails.

Best for hyaluronic acid: Persona Hair, Skin, and Nails

  • Price: $10.08
  • Count: 28-day supply
  • Dose: one capsule per day
  • Main ingredients: sodium hyaluronate 60 milligrams (mg), fish collagen 40 mg, horsetail extract 50 mg

This supplement combines hyaluronic acid, marine collagen, and horsetail, which the company says promotes healthy skin, scalp, and nails.

Discover our top picks of the best hyaluronic acid moisturizers, serums, and masks.

Hyaluronic acid and marine collagen can help promote soft and supple skin, and Persona states that horsetail can help make hair shinier and more manageable.

If a person is unsure whether this supplement is the right choice for them, they can schedule an appointment with a nutritionist through the website.

Each capsule is around the size of a 1-cent coin, making them easy to swallow. Persona directs people to take one capsule with food and plenty of water.

Read our review of Persona.


  • may help promote softer skin and hair
  • easy to swallow capsules
  • subscription service means people will not run out of supplements


  • unsuitable for vegetarians or vegans as it contains fish collagen
  • the company cannot guarantee the supplements are free from allergens due to cross-contamination in factories
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Best for skin complexion: Persona Borage with Saffron

  • Price: $4.20
  • Count: 28-day supply
  • Dose: one gelatin capsule per day
  • Main ingredients: gamma-linolenic acid (GLA) 50 mg, saffron extract 7.5 mg

This capsule contains gamma-linolenic acid from borage oil, a fatty acid that helps maintain the skin’s protective barrier to help prevent skin damage from environmental stress and dehydration.

According to Persona, this product can provide a smoother complexion, support mood, and curb hunger.

The company recommends taking one capsule with food and water.


  • small capsules may be easier to swallow
  • cheaper than many other hair, skin, and nail supplements
  • the company offers access to a nutritionist


  • only offers skin support, which means people will need to buy more supplements to support hair and nail health
  • the company does not state whether the gelatin is vegan-friendly
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Best for hair: Care/of Keratin

  • Price: $18
  • Count: 30-day supply
  • Dose: one capsule per day
  • Main ingredients: keratin 500 mg

This supplement contains only one ingredient: keratin from New Zealand wool. The company claims that this wool comes from free-range sheep.

Care/of states that this supplement can help promote hair and nail growth while keeping the skin soft and supple.

Additionally, the company says that this supplement is third-party tested, non-GMO, gluten-free, vegetarian, and certified C.L.E.A.N.

Care/of recommends taking one capsule per day with a meal.

Read our Care/of review.


  • subscription service means people will not run out of supplements
  • third-party tested and certified
  • reportedly only uses New Zealand farms with strict quality protocols


  • unsuitable for vegans as the keratin comes from wool
  • more expensive than some other supplements
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Best for vegetarian collagen: Care/of Vegetarian Collagen

  • Price: $15
  • Count: 30-day supply
  • Dose: one capsule per day
  • Main ingredients: eggshell membrane 300 mg

Care/of states that the vegetarian collagen comes from the membranes of chicken eggshells.

The company states that the collagen from these eggshells can help support skin hydration and elasticity and hair and nail growth.

Like other Care/of products, this supplement is non-GMO, vegetarian, third-party tested, and certified C.L.E.A.N.

The company recommends taking one capsule daily with food.


  • contains vegetarian collagen
  • third-party tested and certified
  • provides benefits for hair, skin, and nails


  • more expensive than many other supplements
  • unsuitable for vegans or those who prefer not to eat animal byproducts
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Best for vitamin E: HUM Red Carpet

  • Price: $26
  • Count: 30-day supply
  • Dose: two vegan softgels per day
  • Main ingredients: vitamin E 13.4 mg, GLA 150 mg, alpha-linolenic acid (ALA) 120 mg

This supplement contains vitamin E, GLA, and ALA to promote shinier hair and healthier skin.

The ALA and GLA come from blackcurrant seed oil. The company also states that this seed oil provides omega-6 and omega-3 fatty acids. However, these extra nutrients are not present in the supplement facts.

This supplement contains no artificial colors, sweeteners, flavors, or preservatives. It is third-party tested, Clean Label Project certified, and Non-GMO Project verified.

HUM recommends taking two softgels per day with food.


  • contains vitamin E for healthier skin and hair
  • softgels are easier to swallow than tablets
  • third-party tested and certified


  • more expensive than some other products
  • no information on how much omega-6 and omega-3 are in the supplement
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Best gummies: HUM Hair Strong

  • Price: $26
  • Count: 30-day supply
  • Dose: two vegan gummies per day
  • Main ingredients: folate 500 micrograms (mcg), vitamin B12 850 mcg, biotin 5,000 mcg, zinc 20 mg

Hum sells these vegan berry gummies that promote healthy, strong hair and encourage growth.

Biotin is one of the main ingredients, which helps support hair, skin, and nail health. The gummies also contain zinc, which may help prevent hair loss.

Another ingredient is fo-ti, which HUM states stimulates hair growth and maintains color.

Like other HUM products, these gummies have undergone third-party testing and are Clean Label Project certified and Non-GMO Project verified.

HUM recommends taking two gummies daily at any time.


  • vitamin E, biotin, and zinc can help support healthy skin, hair, and nails
  • gummies are a suitable choice for people who find swallowing tablets, capsules, and softgels difficult


  • more expensive than some other products
  • has a very high amount of biotin that exceeds the recommended daily dose
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Best for biotin: Revly Hair, Skin, and Nails complex

  • Price: around $14
  • Count: 130-day supply
  • Dose: one vegan capsule per day
  • Main ingredients: biotin 5,000 mcg

Revly is an Amazon brand that offers this vegan-friendly, gluten-free product.

The complex comes in a bottle of 130 capsules containing 5,000 micrograms of biotin.

The manufacturer claims that the complex helps maintain healthy hair, skin, and nails and can support brain function and energy metabolism.

Revly states that the product does not contain artificial colors, flavors, or chemical preservatives.

The company recommends taking one tablet per day.


  • perfect for people looking to supplement only one nutrient
  • some customers state it helps with COVID-induced hair loss
  • other customers say it helped strengthen weak nails


  • some customers experienced acne breakouts
  • contains a very high dosage of biotin that exceeds the daily recommended dose
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The following table compares the vitamins in this article on price, ingredients, and more.

PriceCountDoseMain ingredients
Persona Hair, Skin, Nails$10.0828-day supplyone capsule daily• sodium hyaluronate 60 mg
• fish collagen 40 mg
• horsetail extract 50 mg
Persona Borage$4.2028-day supplyone capsule daily• GLA 50 mg
• saffron extract 7.5 mg
Care/of Keratin$1830-day supplyone capsule dailykeratin 500 mg
Care/of Collagen$1530-day supplyone capsule dailyeggshell membrane 300 mg
HUM Red Carpet$2630-day supplyone softgel daily• vitamin E 13.4 mg
• GLA 150 mg
• ALA 120 mg
HUM Hair Strong$2630-day supplytwo gummies daily• folate 500 mcg
• vitamin B12 850 mcg
• biotin 5,000 mcg
• zinc 20 mg
130-day supplyone capsule dailybiotin 5,000 mcg

When choosing supplements, people should consider:

  • Pricing: Some brands offer a one-time purchase price, while others have a subscription service. Subscriptions may be more beneficial for those who prefer automatic deliveries to ensure they never run out of supplements.
  • Benefits: Some companies offer supplements that target specific concerns, such as hair loss or brittle nails. Others claim their products support overall hair, skin, and nail health.
  • Ingredients: Always choose a supplement with a clear ingredient list. It is important to ensure that taking the supplement does not lead to ingesting too many nutrients.
  • Certifications: People who are vegetarian, vegan, have allergies, or have other dietary restrictions and requirements should always check for certifications. Some companies may even have certifications from organizations such as the National Sanitation Foundation or United States Pharmacopeia.

Hair, skin, and nail vitamins contain the following ingredients:

  • Vitamin A: This vitamin can prevent skin dryness that could lead to infections. Supplements may also reduce the risk of skin, breast, and lung cancer. It can also support sebum production, which prevents hair breakage. However, a 2022 review found that oversupplementation of vitamin A can lead to hair loss.
  • Vitamin C: This vitamin can help the body create collagen and may reduce the appearance of fine lines and wrinkles.
  • Vitamin E: This vitamin can help protect against oxidative stress, helping prevent premature aging. As well as improving elasticity, firmness, and hydration, vitamin E can also help reduce hyperpigmentation.

Some products also contain biotin. While there are many claims that this supplement can help improve hair, skin, and nail health, the scientific evidence is mixed. There is some evidence that biotin supplementation can help improve hair manageability in children and brittle nails in adults, but more research is necessary.

In addition, hair supplements may include the following ingredients in their formulas:

Limited scientific evidence examines the benefits of hair, skin, and nail vitamin supplements.

A 2020 study found that vitamins available to buy over the counter at retail stores may not be safe for everyone, as they can interact with other drugs and lead to overuse. Some supplements may not include a pregnancy warning label stating that pregnant individuals should consult a doctor before taking any medications or supplements.

The Food and Drug Administration (FDA) does not have the authority to approve supplements. As a result, it recommends that people use noncommercial sites when looking for these products.

It is advisable to look for supplements that have undergone testing by third-party laboratories and to avoid buying supplements if the label says that they do not cause any side effects or that they provide more benefits than a prescription drug.

The best hair, nail, and skin supplements will suit a person’s needs. Some people may prefer to use supplements that contain several nutrients, while others may wish to supplement only one nutrient, such as biotin.

However, it is important to note that there is little scientific evidence to support the benefits of hair, skin, and nail vitamin supplements.

Limited research suggests that hair, skin, and nail vitamins are effective. A person can consider seeking guidance from a doctor before purchasing supplements.

According to a 2020 study, further research into the side effects of hair, skin, and nail supplements is necessary. However, some potential side effects include:

There is also a risk of supplements interacting with medications. A person should consider consulting a doctor before taking any supplements.

Many companies in the United States sell vitamins and supplements that claim to help maintain healthy hair, skin, and nails.

There is not enough research on the benefits of these supplements, and people should seek medical advice before buying these types of products.

Other factors to consider before buying include ingredients and pricing.