Capsules · 60 capsules
Serving Size:
1 Capsule
Amount Per Serving:
Biotin ... 5000 mcg
Other Ingredients:
Hydroxypropyl methylcellulose, microcrystalline cellulose, medium-chain triglycerides, silicon dioxide
As a dietary supplement, 1 capsule one or two times daily with meals, or as directed by a healthcare practitioner.
Warning:
If you are pregnant or lactating, have any health condition or are taking any medication, consult your healthcare. practitioner before Use. Caution: Biotin may interfere with certain blood tests. Wait at least 8 hours between biotin consumption and blood testing. Inform your healthcare practitioner about all biotin-containing supplements you are taking.
Store in a cool, dry place, tightly capped, away from light.
Keep out of the reach of children. Use only it safety seal is intact.
Variations in product color may occur.
Source: Fullscript original manufacturer label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Biotin 5000 from Allergy Research Group delivers 5,000 mcg of biotin per capsule, a high-potency dose of this essential B-vitamin that supports healthy hair, skin, and nails, as well as normal carbohydrate, fat, and protein metabolism. Formulated for individuals with increased biotin needs or those seeking meaningful daily support beyond standard-dose options.
Why It's Worth Considering: Allergy Research Group brings a practitioner-oriented approach to formulation, and this straightforward, high-dose capsule format avoids common excipients that sensitive individuals may want to avoid.
As a dietary supplement, 1 capsule one or two times daily with meals, or as directed by a healthcare practitioner.
| Feature | Methylated (active) | Standard | Synthetic (cheap) |
|---|---|---|---|
| B12 Form | Methylcobalamin | Hydroxocobalamin | Cyanocobalamin |
| Folate Form | 5-MTHF (methylfolate) | Folinic acid | Folic acid (synthetic) |
| B6 Form | P-5-P (pyridoxal-5-phosphate) | Pyridoxal | Pyridoxine HCl |
| Best For | MTHFR variants, optimal absorption | General use | Budget (requires conversion) |
| MTHFR Safe | Yes — bypasses mutation | Mostly yes | No — cannot be converted by 40% of population |
Methylated B vitamins are in their active, bioavailable form, your body can use them immediately without conversion. About 40% of the population has MTHFR gene variants that impair conversion of synthetic folic acid to active folate. Methylated forms (methylcobalamin, methylfolate, P-5-P) bypass this issue entirely.
This is completely normal and harmless. Riboflavin (B2) is a bright yellow fluorescent compound. When you take more than your body needs, the excess is excreted in urine, causing the distinctive color. It's actually a sign your body absorbed the B vitamins and is eliminating what it doesn't need.
B vitamins support energy production, so morning dosing is generally recommended. Some people find evening B-complex disrupts sleep due to increased energy. However, B6 and B12 are involved in melatonin production, so individual responses vary. If evening dosing doesn't affect your sleep, it's fine.
Signs of B12 deficiency: fatigue, brain fog, tingling/numbness in extremities, balance issues, mood changes, and pale skin. At-risk groups: vegetarians/vegans (B12 is only in animal foods), adults over 50 (reduced absorption), and those taking metformin or PPIs (which deplete B12). A serum B12 test plus methylmalonic acid (more sensitive) can confirm.
Yes, B vitamins are water-soluble, meaning excess is excreted daily. No accumulation risk at standard supplement doses. The exception is B6 (pyridoxine): chronic doses above 100mg/day can cause peripheral neuropathy (nerve damage). The P-5-P form is safer at higher doses than pyridoxine HCl.
Ask Gabriel for personalized stacking recommendations.
No significant interactions identified. Always consult your healthcare provider.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
