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Solgar

Solgar Biotin 5,000 mcg, 100 Vegetable Capsules Review

6.9/10SAC Product Score™

Solgar's 5,000 mcg vegetable capsule carries the broadest 'free-from' profile in the set: non-GMO, vegan, gluten-free, dairy-free and Kosher, with no artificial preservatives. It is a well-made clean-label product at a reasonable ~$0.16/serving. What it lacks is an independent USP/NSF seal, and the 5,000 mcg dose sits far above any dietary need -- so it lands just behind NOW on trust.

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▸ THE SCORE

How we built the SAC Product Score™ — 6.9/10

Third-Party Testing & Purity30%6/10

Established clean-label brand QC with no artificial preservatives, but no independent USP/NSF seal. Purity reputation is good; verified third-party testing is absent, which is what keeps it mid-pack.

Dose Sensibility25%6/10

5,000 mcg is ~16,667% of the Daily Value -- above any dietary need, with the standard lab-interference caveat (Li 2017, PMID 28973622).

Formulation Integrity20%8.5/10

Broadest free-from profile in the set: non-GMO, vegan, gluten-free, dairy-free and Kosher, with no artificial preservatives, in a vegetable capsule.

Value per Serving15%7/10

~$0.16/serving at about $16 for 100 capsules is fair mid-tier value -- costlier than NOW and Nutricost, cheaper than the boutique picks.

Suitability & Transparency10%8.5/10

The widest allergen suitability of any pick and clear, honest labeling; a strong fit for allergen-sensitive buyers.

▸ SPECS

The product at a glance

Dose
5,000 mcg (16,667% DV)
Form
d-Biotin vegetable capsule
Count
100 capsules / 100-day supply
Testing
Brand clean-label QC (no USP/NSF)
Free-from
Non-GMO, vegan, gluten-free, dairy-free, Kosher
Serving size
1 vegetable capsule daily
Cost per serving
~$0.16
Price
~$16
▸ TRUTH CHECK

Marketing claims vs. reality

Verified

“Non-GMO, vegan, gluten-free, dairy-free and Kosher”

Solgar lists this SKU with all five attributes; the vegetable capsule and clean-label formulation support the broad free-from profile.

Verified

“No artificial preservatives”

Consistent with Solgar's clean-label standards and the product label; nothing on the SKU contradicts it.

Partial

“5,000 mcg promotes healthy hair, skin and nails”

Biotin is a keratin-metabolism cofactor, but hair benefit is documented only in deficiency (Patel 2017, PMID 28879195); no effect is shown at normal biotin status.

Not verified

“Independently third-party tested”

This SKU carries no USP or NSF seal; testing is the brand's own clean-label QC program.

▸ THE DEEP DIVE

What our test actually found

01The widest 'free-from' guarantee

Vegan, gluten-free, dairy-free, non-GMO and Kosher in one bottle. For buyers juggling several dietary restrictions, this is the most accommodating label in the set.

02Reputable but unverified

Solgar is an established clean-label brand with a good reputation, but this SKU has no independent seal. On the testing axis it trails NOW's audited in-house program and Nature Made's USP mark.

03Fair, not cheap

At ~$0.16/serving it is priced sensibly for a clean vegan cap -- more than the bulk options, less than the boutique ones. Reasonable, without being a value standout.

04A dose above need

5,000 mcg is far more than any diet requires. Because biotin only helps hair in deficiency, the high number adds no benefit and only raises lab-interference risk.

▸ THE TRADE-OFFS

Pros & cons, no sugar-coating

Pros
  • Broadest free-from profile: non-GMO, vegan, gluten-free, dairy-free and Kosher
  • Established clean-label brand with no artificial preservatives
  • Reasonable ~$0.16/serving
  • Vegetable capsule suitable for plant-based diets
Cons
  • No independent USP/NSF seal
  • 5,000 mcg is ~16,667% of the Daily Value
▸ THE BOTTOM LINE

Solid, not special

This is the pick for the allergen-sensitive buyer who wants the widest 'free-from' guarantee. It is clean and well-made from a reputable brand, but with no independent seal and a dose far above any dietary need, it sits just behind NOW on trust. A dependable choice that doesn't quite distinguish itself.

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▸ ALTERNATIVES

If this doesn’t fit — try these

NOW Foods Biotin 5,000 mcg, 120 Veg Capsules

7.7/10

A near-identical clean vegan cap with stronger audited in-house QC and a lower cost per serving.

See it on the list →

Nature Made Biotin 2500 mcg, 150 Softgels

9.4/10

Choose this for the independent USP seal and a lower dose, if a gelatin softgel is acceptable.

See it on the list →

Pure Encapsulations Biotin 8 mg, 120 Capsules

7/10

Step up to the cleanest hypoallergenic filler profile if purity outranks price.

See it on the list →
▸ RESEARCH

Sources & further reading

  1. 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; there is no demonstrated benefit in healthy people regardless of dose.

  2. 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

    Supplemental biotin distorts troponin, thyroid and hormone immunoassays; the risk rises with dose.