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Biotin at 5000mcg is the dose our clinicians most commonly see used when there is a meaningful gap to address — not a token amount. We include it because the evidence for biotin in supporting hair, skin, and nail integrity is grounded in a clear biological mechanism, and because patients frequently arrive with this deficiency undetected. It is simple, well-tolerated, and earns its place on our shelves without needing embellishment.
About this product
Biotin 5000mcg
Biotin is a water-soluble B vitamin — B7 — that plays a central role in keratin production, the structural protein that makes up hair, skin, and nails. This supplement provides 5000mcg per capsule, a dose commonly used when dietary intake or absorption is insufficient to meet the body's needs.
Most people get some biotin from food, but deficiency — or functional insufficiency — is more common than often assumed, particularly in people with poor gut absorption, those who consume raw egg whites regularly, or those in pregnancy. Symptoms can include thinning hair, brittle nails, and dry or flaky skin. A blood test can confirm low levels, though biotin status is not routinely checked on standard panels.
This supplement suits anyone who has noticed changes in hair density, nail integrity, or skin texture and wants to address a potential nutritional gap. It is also used by people in periods of higher physiological demand — postpartum recovery, for instance, or prolonged caloric restriction. Biotin at this dose is generally well tolerated, as excess is excreted in urine given its water-soluble nature.
One important clinical note: high-dose biotin supplementation is known to interfere with several common laboratory assays, including thyroid function tests and troponin measurements. If you are having blood tests, inform your clinician that you are taking biotin and consider pausing it for a few days beforehand.
What it does
Benefits
- 01
Supports keratin production for hair and nail structure
- 02
May help address biotin insufficiency causing hair thinning
- 03
Contributes to normal skin barrier maintenance
- 04
Useful during postpartum or calorie-restricted recovery periods
- 05
Water-soluble formula — excess is naturally excreted
Get the most from it
How to use
Take one capsule daily, ideally with a meal to support absorption. Follow the dosage guidance on the packaging. If you are scheduled for blood tests, speak to your clinician before continuing supplementation, as high-dose biotin can interfere with certain assays.
What's inside
Ingredients
View full ingredient list
Biotin (Vitamin B7)
Common questions
Frequently asked
Who is most likely to benefit from a biotin supplement?
People with dietary gaps, poor gut absorption, or increased physiological demand — such as postpartum women or those on prolonged calorie restriction — are most likely to benefit. Changes in hair thickness, brittle nails, or dry skin can all be signs of insufficient biotin status.
Does biotin actually help with hair growth?
Biotin supports the production of keratin, the structural protein in hair. There is reasonable evidence that correcting a deficiency can improve hair quality and reduce shedding, though it is unlikely to dramatically accelerate growth in someone who is not deficient.
Can I take this alongside other supplements or medications?
Biotin is water-soluble and generally considered safe alongside most supplements and medications. That said, always check with your GP or pharmacist if you are on any prescribed treatments, particularly thyroid medication, as biotin can affect how certain lab results are interpreted.
Will high-dose biotin interfere with my blood tests?
Yes — this is clinically important. Biotin at 5000mcg can interfere with several common laboratory assays, including thyroid function tests and cardiac troponin tests. Let your clinician know you are taking it and consider pausing supplementation for a few days before any scheduled blood work.
How long before I notice a difference?
Hair and nail changes are slow by biology — most people allow at least eight to twelve weeks before assessing results. Consistency matters more than speed here.
Doctor-guided care
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