Biotin, 5,000 mcg, 120 Veg Capsules
by NOW Foods
Compare Prices
NOW Foods Biotin at 5,000 mcg delivers 100 times the UK adequate intake of vitamin B7 in a single capsule — a high but standard dose for supplemental use. Best for People with brittle nails or diffuse hair thinning who suspect B vitamin insufficiency and Anyone wanting a plain, affordable high-dose biotin without proprietary blends or extras.
According to the AIScored 0–100 scoring system, Biotin, 5,000 mcg, 120 Veg Capsules by NOW Foods scores 73.0/100, ranking #3 out of 4 products in Biotin (2026). Strongest category: Value For Money (88.0/100). Weakest: Certifications (40.0/100).
Is Biotin, 5,000 mcg, 120 Veg Capsules worth buying?
“NOW Foods Biotin 5,000 mcg delivers noticeable results for hair and nails within 2-6 weeks, scoring 77/100 from UK consumers who swear by it for genuine strengthening. At 120 capsules for a 4-month supply from a trusted, GMP-certified manufacturer, it's exceptional value for something that actually works.”
What Do Reviewers Say About Biotin, 5,000 mcg, 120 Veg Capsules?
Sample excerpts from currently available source material used in this product analysis.
"Stronger Hair & Faster Growth in Just Weeks!". I’ve been taking these biotin capsules from iHerb for a little over a month, and I’m already seeing a noticeable difference in my hair and nails. My hair feels thicker, shinier, and I’ve had le..."
"For hair and nails. I love this supplement. I take it for 3 months and stop for 3 months. The result is amazing. May God bless you. It strengthens the hair, improves its appearance, and stops hair loss in a short period. The skin improves a..."
"Biotin (vitamin B7) is essential for healthy skin, hair, and nails, and is involved in metabolism and energy production. It helps synthesize keratin and fatty acids, which are essential for hair strength and growth, and supports the normal..."
"Perfectly. It is necessary for the synthesis of fatty acids, the metabolism of amino acids, and the conversion of food into energy. Biotin helps produce keratin, a protein that is the basis of the structure of hair, nails, and skin. Its def..."
"Result in a week. I took this biotin because my hair condition worsened, it started falling out and my nails became brittle and thin. The effect on my hair was not very noticeable, perhaps due to the iron deficiency, but my nails became str..."
How does Biotin, 5,000 mcg, 120 Veg Capsules score?
Detailed score breakdown and key findings from our analysis of 49 reviews across 1 source.
Pros
- +Nail strengthening is the most consistently reported benefit, with some reviewers seeing results in under a week
- +Multiple reviewers report hair becoming thicker, shinier, and less prone to breakage within 2–4 weeks
- +Small capsule size and neutral taste flagged repeatedly — easy to swallow and to maintain as a daily habit
- +120 capsules provides four months at one per day; reviewers consistently praise the price-to-quantity ratio
- +Minimal excipients (rice flour, cellulose capsule, vegetable stearic acid, silicon dioxide) — no unnecessary additives
Cons
- -One reviewer reported jaw swelling and a forehead breakout possibly linked to the supplement — acne-prone users should monitor closely
- -5,000 mcg is 10,000% NRV; clinical evidence for hair and nail benefits in genuinely non-deficient individuals is weak
- -No third-party testing — quality assurance relies on GMP certification alone, with no independent verification
- -High-dose biotin can interfere with blood test results including thyroid panels and cardiac troponin — the product label warns about this, but it catches users off guard
Best For
Watch Out
- !Inform your doctor before any bloodwork — 5,000 mcg biotin is known to skew thyroid and cardiac troponin test results
- !Hair loss driven by iron deficiency, hormonal shifts, or other causes will not respond to biotin alone — one reviewer's experience confirms this
- !A small number of users may develop acne or skin irritation; discontinue and monitor if breakouts appear after starting
What is Biotin, 5,000 mcg, 120 Veg Capsules?
Biotin, 5,000 mcg, 120 Veg Capsules is a biotin product by NOW Foods, scoring 73.0/100 on AIScored.
- • Biotin is a water-soluble B vitamin essential for normal growth and body function.
- • It plays a key role in gluconeogenesis, fatty acid synthesis, and the metabolism of certain amino acids, supporting the body's energy production processes.
- • Biotin also supports the synthesis of specific proteins, promotes healthy immune system function, and contributes to skin health.
- • This NOW Foods formula is vegetarian, vegan, kosher, and non-GMO, produced in a GMP-certified facility.
- • Take 1 capsule daily with a meal.
- • Note: biotin supplementation may interfere with certain blood test results — inform your healthcare provider before any blood testing.
Is Biotin, 5,000 mcg, 120 Veg Capsules Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
How Does Biotin, 5,000 mcg, 120 Veg Capsules Compare?
See how this product stacks up against the top-rated biotin in our database.
| Product | Score | Price |
|---|---|---|
| Biotin, 5,000 mcg, 120 Veg Capsules (this) | 73.0 | £9.34 |
| Biotin 5000µg 50 Vegi Capsules | 76.0 | £16.20 |
| Biotin 5000µg 100 Vegi Capsules | 74.0 | £16.20 |
| Biotin, 10,000 mcg, 120 Tablets | 65.0 | £8.57 |
Price History (90 days)
Quick Facts
- Vegan
- No
Frequently Asked Questions
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Is Biotin, 5,000 mcg, 120 Veg Capsules third-party tested? ▼
How does Biotin, 5,000 mcg, 120 Veg Capsules compare to Biotin 5000µg 50 Vegi Capsules? ▼
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
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