Many people start taking care of their beauty by choosing skincare, shampoo, or various beauty products. But in reality, the health of the skin, hair, and nails is also influenced by what the body receives every day.

This is because all three require nutrients to:

• Create new cells

• Produce structural proteins

• Repair damage

• Protect cells from free radicals

If the body does not receive enough of certain nutrients, it may lead to problems such as:

• Dry, dull-looking skin

• Brittle or easily damaged hair

• Thin or easily broken nails

Let’s take a look at 8 vitamins and minerals that play important roles in skin, hair, and nail health.

1. Vitamin C: A Key Nutrient for Collagen Production 

When it comes to skin, Vitamin C is often one of the first nutrients people think of.

Vitamin C plays an important role in collagen production, which is the main structural protein of the skin.

Collagen is related to:

• Skin strength

• Skin elasticity

• Tissue structure

Vitamin C is also an antioxidant that helps protect cells from oxidative stress, which is associated with skin aging.

Food sources include:

• Oranges

• Guava

• Kiwi

• Bell peppers

• Broccoli

Research published in Nutrients, 2017 reported that Vitamin C plays an important role in collagen production and protecting the skin from free radical damage.

2. Zinc: A Mineral for Skin Repair 

Zinc is a mineral involved in more than 300 processes in the body.

For skin, hair, and nails, Zinc plays roles in:

• Cell division

• Tissue repair

• Regulation of inflammatory processes

When the body does not get enough Zinc, possible issues may include:

• Slow wound healing

• Slow skin recovery

• Hair loss in some groups

Foods that contain Zinc include:

• Oysters

• Meat

• Eggs

• Pumpkin seeds

Research published in Nutrients, 2017 found that Zinc plays an important role in immune function, tissue repair, and skin health.

3. Biotin / Vitamin B7: A Vitamin Related to Hair and Nails 

Biotin, or Vitamin B7, is a vitamin in the B Complex group.

It is involved in the metabolism of nutrients and the production of certain proteins in the body.

Especially keratin, an important protein for:

• Hair

• Nails

• Skin

People with Biotin deficiency may experience symptoms such as:

• Thinning hair

• Hair loss

• Brittle nails

However, in people who already get enough Biotin, additional supplementation may not clearly improve hair and nails.

The group that may benefit more is those with Biotin deficiency.

Research published in American Journal of Clinical Dermatology, 2017 discussed the role of Biotin in hair and nail health, especially in people with deficiency.

4. Vitamin D: More Than Bone Support 

Vitamin D is a vitamin involved in many systems of the body, including the skin.

The skin can produce Vitamin D when exposed to sunlight, but many people today may not get enough due to:

• Staying indoors for long periods

• Avoiding sunlight

• Urban lifestyles

Vitamin D plays roles in:

• Skin cell function

• Balance of the skin immune system

Research published in International Journal of Dermatology, 2019 found associations between Vitamin D and several aspects of skin health.

5. Vitamin E: An Antioxidant for the Skin 

Vitamin E is a fat-soluble vitamin with antioxidant properties.

Its important roles include:

• Protecting fats in cell membranes

• Helping reduce damage from oxidative stress

• Supporting the skin barrier

Food sources include:

• Almonds

• Sunflower seeds

• Avocado

• Some plant oils

Research published in Nutrients, 2018 reported that Vitamin E plays an important role in protecting skin cells from free radical damage.

6. Omega-3: Healthy Fats for Skin Balance 

Omega-3, especially EPA and DHA, are fatty acids that play roles in overall health.

For the skin, Omega-3 is involved in:

• Cell membrane structure

• Maintaining skin balance

• Inflammatory processes in the body

People who eat little fish may get less Omega-3 than they should.

Food sources include:

• Salmon

• Sardines

• Mackerel

Research published in Marine Drugs, 2018 found that Omega-3 plays a role in skin health and inflammatory processes.

7. Selenium: An Antioxidant Mineral 

Selenium is a mineral the body needs in small amounts, but it plays a role in the antioxidant system.

Selenium is a component of enzymes such as:

Glutathione Peroxidase

which helps protect cells from damage.

It is related to:

• Skin health

• Immune function

• Protection against oxidative stress

Food sources include:

• Fish

• Eggs

• Brazil nuts

• Meat

8. Protein and Amino Acids: Building Blocks of Skin, Hair, and Nails 

Although not a vitamin or mineral, protein is a foundational nutrient that the body cannot go without.

This is because skin, hair, and nails are largely made of proteins such as:

• Collagen

• Keratin

If protein intake is insufficient, the body may reduce the production of tissues that are not essential for immediate survival, such as hair and nails.

Protein sources include:

• Eggs

• Fish

• Meat

• Milk

• Whey Protein

• Beans and whole grains

Research published in Journal of the International Society of Sports Nutrition, 2017 reported that adequate protein intake plays a role in maintaining and building body tissues.

Besides Nutrition, What Else Should You Do for Healthy Skin, Hair, and Nails? 

Although nutrients are important, skin health does not depend on food alone.

It should be supported by:

Getting Enough Sleep 

Sleep plays a role in the body’s repair processes.

Sun Protection

UV radiation is one of the key factors that damages skin structure.

Reducing Stress

Chronic stress may affect the skin and hair.

Exercise

Exercise helps support blood circulation and overall health.

Summary 

The 8 vitamins, minerals, and nutrients that play roles in skin, hair, and nail health include:

✅ Vitamin C → Supports collagen production and antioxidant protection
✅ Zinc → Supports skin repair and cell production
✅ Biotin → Related to hair and nail health
✅ Vitamin D → Supports skin cell function
✅ Vitamin E → Protects cells from oxidative stress
✅ Omega-3 → Supports skin balance
✅ Selenium → Supports the antioxidant system
✅ Protein → An essential building block for skin, hair, and nails

However, beauty from within does not come from one nutrient alone. A varied diet, sufficient rest, and overall lifestyle care remain the most important foundations.

References 

• Pullar JM, et al. “The Roles of Vitamin C in Skin Health.” Nutrients, 2017

• Gammoh NZ, Rink L. “Zinc in Infection and Inflammation.” Nutrients, 2017

• Patel DP, et al. “Biotin Deficiency and Supplementation.” American Journal of Clinical Dermatology, 2017

• Wang Y, et al. “Vitamin D and Skin Health.” International Journal of Dermatology, 2019

• Keen MA, Hassan I. “Vitamin E in dermatology.” Indian Dermatology Online Journal, 2016

• Pilkington SM, et al. “Omega-3 fatty acids and skin health.” Marine Drugs, 2018

• Jäger R, et al. “Protein and exercise.” Journal of the International Society of Sports Nutrition, 2017