Biotin

Biotin is a water-soluble B vitamin (vitamin B7) that acts as a coenzyme in the body, helping convert carbohydrates, fats, and proteins into energy. People use biotin supplements to support healthy hair, skin, and nails, especially if their diet may not provide enough of this nutrient.

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Biotin

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Biotin

What it is: Biotin is a water-soluble B vitamin also known as vitamin B7 or vitamin H, essential for normal metabolism and cellular function.
What it does: Biotin works as a coenzyme, assisting enzymes that break down nutrients to produce energy, and it is involved in maintaining healthy hair, skin, and nails.
How it is used: Biotin is commonly taken in supplement form to support the appearance and strength of hair and nails, and for overall metabolic support.
Natural sources and supplement forms: You can find biotin naturally in foods such as eggs, nuts, seeds, fish, organ meats, and whole grains. The most common supplement form is D-biotin, available as tablets, capsules, gummies, or powders.
Why it appears in supplement formulas: Biotin is included to help meet daily needs for metabolism and to support visible hair and nail health, particularly if dietary intake is low or needs are higher.
What to know before use: Large amounts of biotin can interfere with some laboratory blood test results; let your healthcare provider know if you are taking biotin before any testing.

Interesting Fact

Biotin: The B Vitamin Secretly Found in Eggs and Nuts

Biotin, also known as vitamin B7, is a vital nutrient your body uses to help convert food into energy. It naturally occurs in everyday foods like eggs, nuts, and whole grains. Since it's water-soluble and not stored in large amounts, getting enough biotin from your diet—or a supplement—helps support the body’s ongoing metabolism of carbohydrates, fats, and proteins every day.

FAQ

Common questions about Biotin

FAQ

Frequently Asked Questions About Biotin

What are common natural food sources of biotin?

Biotin is naturally found in a variety of foods including eggs (especially the yolk), nuts, seeds, liver, fish, whole grains, and some vegetables like sweet potatoes and spinach. Regularly eating a balanced diet containing these foods typically provides sufficient biotin for most people.

How does biotin support hair, skin, and nail health?

Biotin functions as a coenzyme that aids in the metabolism of amino acids, which are the building blocks for keratin—a key structural protein in hair, skin, and nails. Adequate biotin intake supports the body’s ability to maintain healthy keratin production, which is why it's often included in beauty supplements.

Can biotin supplements interfere with lab test results?

High doses of biotin supplements can interfere with certain laboratory tests, such as thyroid function or hormone tests, by causing inaccurate results. If you use biotin supplements and need lab work, inform your healthcare provider so they can recommend appropriate precautions or timing for accurate testing.

What forms does biotin typically come in for supplements?

Biotin is most commonly available in supplement form as D-biotin, the naturally occurring and biologically active form. It can be found as standalone tablets, capsules, powders, or gummies, and is also a frequent ingredient in multivitamins and hair, skin, and nail formulas.