5,000 mcg biotin. One softgel.

Biotin - also known as vitamin B7 - is an essential water-soluble B vitamin.

It serves as a cofactor for several enzymes involved in normal metabolism of fats, carbohydrates, and amino acids.*

Each softgel contains 5,000 mcg of biotin, equal to 5 mg.

That's 16,667% of the Daily Value, so this is a concentrated biotin supplement rather than a basic nutritional-dose multivitamin.

We don't guarantee that.

Biotin deficiency can cause hair thinning, but deficiency is uncommon in otherwise healthy people eating a normal diet. Reviews of the scientific literature have found limited evidence that high-dose biotin improves hair growth in people who are not deficient.

There is some limited evidence.

Small studies in people with brittle nails have reported improvements after biotin supplementation, but the studies were small and generally lacked strong placebo-controlled designs.

So we would not promise stronger nails for every person.

No Tolerable Upper Intake Level has been established for biotin because toxicity has not been demonstrated at typical supplemental amounts.

However, that does not mean high-dose biotin is consequence-free. The major practical safety issue is interference with certain laboratory tests.

Yes. This is very important.

High-dose biotin can interfere with certain laboratory assays and produce falsely high or falsely low results, including some tests involving thyroid hormones, vitamin D, reproductive hormones, and cardiac troponin.

Always tell your healthcare provider and laboratory that you take biotin.

There is no single universal answer because different lab tests and platforms respond differently.

AACC guidance recommends a minimum 8-hour wait after 5-10 mg of biotin for many tests, while some assays may require a longer washout period - potentially up to 72 hours. FDA does not endorse one universal time for every assay.

The safest instruction is: ask the healthcare professional or laboratory ordering your test how long they want you to stop biotin beforehand.

The 75 mg of extra-virgin avocado oil serves as the oil carrier inside the liquid softgel.

We do not claim that it makes biotin more potent or materially increases biotin absorption.

Potentially, but check the labels.

Biotin is frequently included in multivitamins, B-complex products, and hair/skin/nail formulas, so combining products can increase your total dose considerably.

Also remember that all supplemental biotin contributes to the lab-test interference issue.

Take one softgel daily with a meal, according to the Suggested Use.

Each bottle contains 90 softgels and 90 servings.

Consult a healthcare professional before use if you are pregnant or nursing, take prescription medication, have a medical condition, or undergo regular laboratory testing.

Most importantly, tell any healthcare professional ordering bloodwork that you take 5 mg of supplemental biotin.

The softgel contains bovine gelatin, so the product is not vegetarian or vegan.