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Vitamin B7

Biotin supplements compared against the EU Nutrient Reference Value of 50 micrograms a day. No tolerable upper limit is established for biotin, so no product here is flagged for exceeding one.

As with vitamin B12, dose is not the axis that separates these products. Every one of them carries between 20 and 400 times the reference value, so a dose comparison bands the whole category identically. What separates them is price per day — a thirty-fold spread for the same molecule — whether the pack states its figure per tablet or per two-tablet serving, and whether the added zinc and selenium are present at a meaningful fraction of their own reference values or not at all.

One label here quotes its percentage against the US Daily Value of 30 µg rather than the EU value of 50 µg, printing 33,333% for a dose another pack prints as 20,000%. The two products contain exactly the same amount. Compare the microgram figures, never the percentages.

Not medical advice

This compares label amounts against published reference doses. It is information, not advice, and it is not personalised. Consult a healthcare professional before starting, stopping or combining supplements — particularly if you take prescription medication.
Side by side

Comparison

Product At full doseBiotin per day BandCost per full dose Days supply
Biotin 10000mcg
Natural & Healthy UK
 1 of 110000 mcg Full dose£0.000 360 days
Biotin 12000µg
Nutravita
 1 of 112000 mcg Full dose£0.000 400 days
Biotin Max with Zinc & Selenium 12000µg
EVO Nutrition
 3 of 312000 mcg Full dose£0.000 400 days
Biotin 12000µg
WeightWorld
 1 of 112000 mcg Full dose£0.000 365 days
Biotin 20000µg
MultiVita
 1 of 120000 mcg Full dose£0.000 60 days
Biotin 10000mcg
Nutricost
 1 of 110000 mcg Full dose£0.000 240 days
Biotin Hair Skin & Nails Complex 12000mcg
Zipvit
 3 of 312000 mcg Full dose£0.000 90 days
Biotin 10000mcg
Swiss BioEnergetics
 1 of 110000 mcg Full dose£0.000 120 days
Biotin 10000µg
Simply Supplements
 1 of 110000 mcg Full dose£0.000 120 days
Biotin, Copper & Zinc 5000mcg
Revora
 1 of 35000 mcg Full dose£0.000 365 days
Biotin Growth+ 10000µg
Nutrition Geeks
 3 of 310000 mcg Full dose£0.000 90 days
Biotin+ with Zinc & Selenium 12000µg
New Leaf Products
 2 of 312000 mcg Full dose£0.000 90 days
Biotin Liquid Drops 12000µg
Nutroliq
 1 of 112000 mcg Full dose£0.001 60 days
Biotin 5000mcg
Now Foods
 1 of 15000 mcg Full dose£0.002 60 days
Beauty Biotin Gummies 10000µg
NeoCell
 1 of 110000 mcg Full dose£0.002 30 days
Biotin Complex 10000µg
Purolabs
 2 of 510000 mcg Full dose£0.002 60 days
Biotin Gummies Mixed Berry
WeightWorld
 7 of 135000 mcg Full dose£0.003 60 days
Biotin 5000µg
Solgar
 1 of 15000 mcg Full dose£0.004 50 days
Biotin 1000µg
Health Leads
 1 of 11000 mcg Full dose£0.006 60 days
Biotin 1000µg
Sky Premium Life
 1 of 11000 mcg Full dose£0.008 60 days
Every product

What's actually in them

Ingredient On the label Per day Reference Ratio Band
10,000mcg per Tablet 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

The label does not state how many servings a day to take. These figures assume one.

Days supply
360 days
Cost per day
£0.017
Cost per full dose
£0.000
Price
£5.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
12000µg (24000% NRV) 12000 mcg 50 mcg 240× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
400 days
Cost per day
£0.024
Cost per full dose
£0.000
Price
£9.50
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
12,000µg (24,000% NRV) 12000 mcg 50 mcg 240× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

10mg (100% NRV) 10 mg 10 mg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
10 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
25 mg
Evidence
Strong
55µg (100% NRV) 55 mcg 55 mcg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
55 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
300 mcg
Evidence
Strong
Days supply
400 days
Cost per day
£0.025
Cost per full dose
£0.000
Price
£9.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
12,000µg (24000% NRV) 12000 mcg 50 mcg 240× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
365 days
Cost per day
£0.027
Cost per full dose
£0.000
Price
£9.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
20,000µg per 2-tablet serving (40000% RI) 20000 mcg 50 mcg 400× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
60 days
Cost per day
£0.067
Cost per full dose
£0.000
Price
£3.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
10,000mcg (33,333% DV) 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
240 days
Cost per day
£0.062
Cost per full dose
£0.000
Price
£14.95
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
12,000mcg per 2-tablet serving (24,000% NRV) 12000 mcg 50 mcg 240× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

10mg (100% NRV) 10 mg 10 mg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
10 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
25 mg
Evidence
Strong
55mcg (100% NRV) 55 mcg 55 mcg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
55 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
300 mcg
Evidence
Strong
Days supply
90 days
Cost per day
£0.078
Cost per full dose
£0.000
Price
£6.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
10,000µg (20,000% NRV) 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
120 days
Cost per day
£0.075
Cost per full dose
£0.000
Price
£8.97
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
10,000µg (20,000% NRV) 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
120 days
Cost per day
£0.075
Cost per full dose
£0.000
Price
£8.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
5000 mcg (10000% NRV) 5000 mcg 50 mcg 100× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

5 mg (50% NRV) 5 mg 10 mg 0.5× Underdosed
The daily amount is at least half the published reference dose, but below it.
Reference dose
10 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
25 mg
Evidence
Strong
0.5mg (50% NRV) 0.5 mg 1 mg 0.5× Underdosed
The daily amount is at least half the published reference dose, but below it.
Reference dose
1 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Days supply
365 days
Cost per day
£0.038
Cost per full dose
£0.000
Price
£13.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
10,000µg per 2-tablet daily intake (20,000% NRV) 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

10mg (100% NRV) 10 mg 10 mg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
10 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
25 mg
Evidence
Strong
55µg (100% NRV) 55 mcg 55 mcg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
55 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
300 mcg
Evidence
Strong
Days supply
90 days
Cost per day
£0.078
Cost per full dose
£0.000
Price
£6.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
12,000µg per 2-tablet serving (24,000% RI) 12000 mcg 50 mcg 240× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

5mg (50% RI) 5 mg 10 mg 0.5× Underdosed
The daily amount is at least half the published reference dose, but below it.
Reference dose
10 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
25 mg
Evidence
Strong
60µg (109% RI) 60 mcg 55 mcg 1.09× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
55 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
300 mcg
Evidence
Strong
Days supply
90 days
Cost per day
£0.099
Cost per full dose
£0.000
Price
£8.94
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
12,000 mcg per 1mL (24000% NRV) 12000 mcg 50 mcg 240× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
60 days
Cost per day
£0.167
Cost per full dose
£0.001
Price
£9.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
5000mcg (10000% NRV) 5000 mcg 50 mcg 100× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
60 days
Cost per day
£0.236
Cost per full dose
£0.002
Price
£14.14
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
10,000µg (20,000% NRV) 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
30 days
Cost per day
£0.500
Cost per full dose
£0.002
Price
£14.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
10,000µg (20,000% NRV) 10000 mcg 50 mcg 200× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

200.00mg (250% NRV) 200 mg 80 mg 2.5× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
80 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Evidence
Strong
2.50mg (25% NRV) 2.5 mg 10 mg 0.25× Fairy dust
The daily amount is less than half the published reference dose.
Reference dose
10 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
25 mg
Evidence
Strong
23.4mg (293% NRV) 23.4 mg 800 mg 0.03× Fairy dust
The daily amount is less than half the published reference dose.
Reference dose
800 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
25µg (45% NRV) 25 mcg 55 mcg 0.45× Fairy dust
The daily amount is less than half the published reference dose.
Reference dose
55 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
300 mcg
Evidence
Strong
Days supply
60 days
Cost per day
£0.500
Cost per full dose
£0.002
Price
£29.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
5000µg (10000% NRV) 5000 mcg 50 mcg 100× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

20mg (25% NRV) 20 mg 80 mg 0.25× Fairy dust
The daily amount is less than half the published reference dose.
Reference dose
80 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Evidence
Strong
14.85mg (123% NRV) 14.85 mg 12 mg 1.24× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
12 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Evidence
Moderate
Timing

Fat-soluble - take with a meal containing fat.

5.2mg (87% NRV) 5.2 mg 6 mg 0.87× Underdosed
The daily amount is at least half the published reference dose, but below it.
Reference dose
6 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
2mg (143% NRV) 2 mg 1.4 mg 1.43× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
1.4 mg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
12 mg
Evidence
Strong
Timing

Long-term intake above the upper level has been associated with peripheral neuropathy (nerve damage in the hands and feet), which is why an upper level exists for B6 at all. EFSA revised the adult figure to 12 mg a day in 2023, down from 25 mg.

630µg (79% NRV) 630 mcg 800 mcg 0.79× Underdosed
The daily amount is at least half the published reference dose, but below it.
Reference dose
800 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Upper limit
3000 mcg
Evidence
Strong
260µg (130% NRV) 260 mcg 200 mcg 1.3× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
200 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Upper limit
1000 mcg
Evidence
Strong
Timing

Folic acid can correct the anaemia caused by a vitamin B12 deficiency while nerve damage continues undetected, so B12 status is worth checking alongside it.

10µg (200% NRV) 10 mcg 10 mcg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
10 mcg (recommended daily allowance)
Source
SACN Vitamin D and Health report, July 2016— checked 5 Aug 2026
Upper limit
100 mcg
Evidence
Strong
Timing

Fat-soluble - absorbed best with a meal containing fat.

6µg (240% NRV) 6 mcg 2.5 mcg 2.4× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
2.5 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Evidence
Strong
55µg (100% NRV) 55 mcg 55 mcg 1× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
55 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026
Upper limit
300 mcg
Evidence
Strong
42µg (28% NRV) 42 mcg 150 mcg 0.28× Fairy dust
The daily amount is less than half the published reference dose.
Reference dose
150 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
40µg (NRV Not Established) 0.04 mg 400 mg 0× Fairy dust
The daily amount is less than half the published reference dose.
Reference dose
400 mg (dose used in clinical trials)
Source
EFSA adequate intake for adults— checked 12 Aug 2026
Evidence
Moderate
40µg (NRV Not Established) 0.04 mg Not stated — No reference
No published reference dose was found for this ingredient, so it cannot be compared.
Evidence
Weak
  • Vitamin D3 with Orlistat
  • Vitamin D3 with Anti-seizure drugs
Days supply
60 days
Cost per day
£0.260
Cost per full dose
£0.003
Price
£15.57
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
5000µg 5000 mcg 50 mcg 100× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
50 days
Cost per day
£0.360
Cost per full dose
£0.004
Price
£17.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
1000µg (2000% NRV) 1000 mcg 50 mcg 20× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
60 days
Cost per day
£0.128
Cost per full dose
£0.006
Price
£7.70
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient On the label Per day Reference Ratio Band
1000µg (2000% NRV) 1000 mcg 50 mcg 20× Full dose
The daily amount meets or exceeds the published reference dose.
Reference dose
50 mcg (recommended daily allowance)
Source
EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026
Evidence
Strong
Timing

High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply
60 days
Cost per day
£0.167
Cost per full dose
£0.008
Price
£9.99
Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

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