Ingredient

Biotin

Positive in 6 products

What is Biotin?

Biotin is a water-soluble B-vitamin that is part of the complex of B vitamins. It is naturally found in foods like eggs, nuts, and certain vegetables, and can also be synthesized in the lab for supplementation.

Biotin is commonly used for its potential to support healthy hair, skin, and nails. There's some evidence suggesting it may help improve nail and hair growth, particularly in cases of deficiency. However, for people without a deficiency, the evidence of biotin's effectiveness is mixed.

When you see biotin on a label, it may be included to appeal to consumers looking for beauty-related health benefits. However, excessive intake beyond the recommended daily allowance could potentially interfere with certain lab tests.

Commonly found in: Hair & Nail Supplements, Multivitamins, Shampoos, Conditioners, Skin Creams

What to watch

High doses of biotin can interfere with certain lab tests, potentially leading to misdiagnosis.

Benefits

Supports healthy skin, hair, and nails, especially in cases of deficiency.
Essential for various metabolic processes in the body.

FDA

Biotin is considered safe and is available as a supplement; the FDA has no known major restrictions on its use.

Research

Studies show benefits for those with deficiencies, but evidence is mixed for those with adequate intake.

Vegan

Biotin itself is not animal-derived and is generally accepted by vegans when sourced synthetically.

Sources: Biotin Fact Sheet for Health Professionals

Scout's take

B-vitamin supporting keratin synthesis; clean and safe at use levels.

More from Scout's analyses

Biotin is a B-vitamin that plays a crucial role in energy metabolism and is essential for healthy skin, hair, and nails. It is a high-quality active ingredient in this supplement, providing significant health benefits. Biotin is generally well-absorbed and has no known adverse interactions with other common supplement ingredients.

from the analysis of Country Life Biotin High Potency Glass Bottle

Part of B Vitamins. Full spectrum of B vitamins supporting energy metabolism at the cellular level. Functional micronutrient addition.

from the analysis of Celsius Energy Drink

B-vitamin supporting keratin synthesis; clean and safe at use levels. Topical evidence is weaker than oral but harmless.

from the analysis of Mielle Organics Rosemary Mint Scalp & Hair Strengthening Oil