Verified
“Cheapest cost per serving with an ~8-month supply”
240 capsules for about $17 is ~$0.07/serving, tied for the lowest cost per serving in the set and among the longest supplies.
Reviewed
Verified by SAC team
+20
XP on completion
Best Value
Nutricost
Nutricost Biotin (Vitamin B7) 10,000 mcg, 240 Capsules Review
5.7/10SAC Product Score™
Nutricost's proposition is volume: 240 quick-release veg capsules for about $17, roughly an eight-month supply, at the cheapest cost per serving in the whole set. It's gluten-free, non-GMO, and made in a GMP-compliant, ISO-accredited facility. But the dose is a 10,000 mcg megadose that maximizes lab-interference risk, and the only quality assurance is the brand's own GMP claim -- no independent seal.
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Read the complete Biotin guide →How we built the SAC Product Score™ — 5.7/10
Third-Party Testing & Purity30%5/10
Made in a GMP-compliant, ISO-accredited facility, but the assurance is the brand's own claim with no independent USP/NSF seal. Weakest testing among the picks that aren't outright 'skip'.
Dose Sensibility25%4/10
10,000 mcg is a marketing-driven megadose with no dietary justification, maximizing troponin/thyroid immunoassay interference (Li 2017, PMID 28973622). A significant mark against it.
Formulation Integrity20%6/10
Quick-release vegetarian capsule, gluten-free and non-GMO -- a reasonably clean base formula, though nothing distinguishes it beyond the basics.
Value per Serving15%9.5/10
~$0.07/serving with an ~8-month, 240-capsule supply -- the cheapest cost per serving in the entire set. This is the pick's defining strength and the reason for its Best Value badge.
Suitability & Transparency10%6/10
Vegetarian, gluten-free and non-GMO suitability is fine and the label is clear, but the megadose limits how appropriate it is for everyday use.
The product at a glance
- Dose
- 10,000 mcg (10 mg) quick-release
- Form
- d-Biotin capsule
- Count
- 240 capsules / ~8-month supply
- Testing
- GMP/ISO-accredited facility (brand claim; no USP/NSF)
- Free-from
- Vegetarian, gluten-free, non-GMO
- Serving size
- 1 capsule daily
- Cost per serving
- ~$0.07
- Price
- ~$17
Marketing claims vs. reality
Partial
“Made in a GMP-compliant, ISO-accredited facility”
This is a brand statement about the manufacturing facility, not an independent product certification; there is no USP or NSF seal on the SKU.
Verified
“Vegetarian, gluten-free and non-GMO”
The veg capsule and label support these free-from attributes.
Partial
“10,000 mcg supports stronger hair and nails”
Biotin helps hair only in deficiency (Patel 2017, PMID 28879195); the 10 mg dose exceeds any need and does not add benefit in healthy people, while raising lab-interference risk.
What our test actually found
01Unbeatable on raw cost
240 capsules for ~$17 is the cheapest cost per serving here and an ~8-month supply in one bottle. If price-per-capsule is your only metric, nothing beats it -- hence the Best Value badge.
02The megadose tradeoff
That value comes attached to 10,000 mcg -- a marketing number, not a nutritional one. It adds no hair benefit and carries the strongest lab-interference footprint alongside the other 10 mg picks.
03Assurance by claim, not seal
GMP/ISO manufacturing is reassuring but self-stated; there is no independent USP or NSF verification. On the testing axis it trails every pick ranked above it.
04How to use it sensibly
If you buy it, take the lowest dose that fits your need and stop several days before any bloodwork. The large capsule count means it can double as a long-horizon supply if you dose infrequently.
Pros & cons, no sugar-coating
Pros
- Cheapest cost per serving in the set with an ~8-month supply
- Quick-release veg cap; gluten-free and non-GMO
- Made in a GMP-compliant, ISO-accredited facility
- Large 240-count bottle reduces reorder frequency
Cons
- 10,000 mcg maximizes lab-test interference risk
- No third-party seal beyond the brand's own GMP claim
- Dose is marketing-driven overkill for any real need
The value play, with eyes open
If you've decided to buy biotin and want the most capsules for the least money, this is the value play -- hence the badge. Just know you're buying a 10 mg megadose with no independent testing. Take the lowest dose that fits your need and stop it before any bloodwork. The price is genuinely unbeatable; the dose and missing seal are why it ranks where it does.
Check Nutricost on AmazonIf this doesn’t fit — try these
Nature Made Biotin 2500 mcg, 150 Softgels
9.4/10Matches this on cost per serving but adds a USP seal and a sensible dose -- the better value once quality counts.
See it on the list →NOW Foods Biotin 5,000 mcg, 120 Veg Capsules
7.7/10A cleaner vegan cap with audited in-house QC at a moderate dose for a little more per serving.
See it on the list →Natrol Biotin 10,000 mcg, 100 Fast-Dissolve Tablets
4.1/10The other bargain 10 mg option -- but flavored, untested, and lower-ranked.
See it on the list →Sources & further reading
- Patel DP, Swink SM, Castelo-Soccio L. A Review of the Use of Biotin for Hair Loss. Skin Appendage Disord. 2017;3(3):166-169.Patel DP, Swink SM, Castelo-Soccio L · 2017 · Skin Appendage Disorders · PMID 28879195
A Review of the Use of Biotin for Hair Loss
Biotin improves hair only in genuine deficiency; a 10 mg dose confers no additional hair benefit over modest replacement in healthy people.
- Li D, Radulescu A, Shrestha RT, et al. Association of Biotin Ingestion With Performance of Hormone and Nonhormone Assays in Healthy Adults. JAMA. 2017;318(12):1150-1160.Li D, Radulescu A, Shrestha RT, et al. · 2017 · JAMA · PMID 28973622
Association of Biotin Ingestion With Performance of Hormone and Nonhormone Assays in Healthy Adults
High biotin doses such as 10 mg substantially distort hormone and troponin immunoassays in healthy adults.