This is the single most important safety page on this website. Biotin at the dose in our gummies can interfere with laboratory blood tests, and skipping this page could lead to a misdiagnosis.
The rule is simple: pause Gelagen at least 72 hours before any blood draw.
- Troponin assay is the highest-risk interference
- Thyroid panels (TSH, T3, T4) also affected
- 72-hour pause before any blood draw
- Tell your clinician the exact dose: 5,000 mcg
What the interference is
Many laboratory immunoassays use a biotin-streptavidin binding system. High blood levels of biotin — from supplements like ours — can interfere with that chemistry, producing either falsely high or falsely low results depending on the test design.
The most clinically significant: troponin, the primary marker for heart attack. A falsely low troponin reading could lead to a missed cardiac event. Thyroid panels (TSH, T3, T4) can also be affected. The FDA safety communication covers the full scope.
The 72-hour rule
Biotin is water-soluble and clears relatively quickly. A 72-hour pause before blood work is the widely cited guidance for supplements at 5,000 mcg and above. In practice: skip your gummies on Thursday if your blood draw is on Monday morning. The pause does not undo any benefit — it simply clears the circulating biotin so the assay chemistry works correctly.
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Order Risk-FreeWhat to tell your clinician
One sentence: I take a daily supplement containing 5,000 mcg of biotin. That sentence lets them flag any biotin-dependent assay in your panel and either request an alternative method or confirm the pause was long enough. This is exactly why we print the dose — your clinician needs the number, not a vague ‘proprietary blend’.
Why most brands skip this page
Because it is not a selling point. We include it because a supplement company that knows the dose and does not warn about the interaction is choosing sales over safety. Ours is at the top of the safety overview, linked from the disclaimer, and repeated in the footer of every page on this site.
The bottom line
One rule: pause 72 hours before blood work and tell your clinician you take 5,000 mcg of biotin. That sentence could prevent a misdiagnosis.
This guide is published on the Gelagen official website — the only place our formula, our pricing and our 60-day guarantee all stand behind the same order.
Order Gelagen NowGelagen is a dietary supplement supporting everyday skin health in healthy adults. It treats no skin condition and never replaces professional dermatological care. Statements on this page have not been evaluated by the FDA.