Third-Party Tested Berberine Supplements

Our recommendation

Buy Toniiq Berberine 500 mg

1,000 mg is the low end of the 1,000 to 1,500 mg a day many trials used. It costs less a day than the other three tested bottles below.

Buy on Amazon · $29.97

• Drug tested in sport? Momentous Berberine is also on NSF Certified for Sport, at $1.67 a day.

✓ Which berberine supplements are third-party tested? (4)

NSF checked each of these and lists it by name. Tap a badge to see the listing.

1. 

   Our pick

   Toniiq Berberine 500 mg

   ✓ NSF/ANSI 173

   NSF lists it at 3 capsules (1,500 mg) a day. 2 capsules give 1,000 mg for $0.67. 500 mg berberine HCl a capsule.

   $0.67 a day at list price

   Buy on Amazon · $29.97
2. 

   Thorne Berberine

   ✓ NSF/ANSI 173

   2 capsules (1,000 mg). Berberine HCl plus berberine phytosome; the weight includes the fat carrier, so the berberine is less than the label weight. NSF lists it at 4 capsules a day.

   $1.47 a day at list price

   Buy on Amazon · $44.00
3. 

   Momentous Berberine

   ✓ NSF/ANSI 173✓ NSF Certified for Sport

   2 capsules (1,100 mg). 550 mg of berberine phytosome a capsule; the weight includes the fat carrier, so the berberine is less than the label weight. The label says 1 to 3 capsules a day.

   $1.67 a day at list price

   Buy on Amazon · $49.99
4. 

   Codeage Berberine Phytosome+

   ✓ NSF/ANSI 173

   2 capsules (1,000 mg). 500 mg berberine HCl with alpha lipoic acid in each capsule. The label serving is 1 capsule, so 1,000 mg is more than the label says.

   $1.33 a day at list price

   Buy on Amazon · $39.99

A day = the whole capsules that reach 1,000 mg or more. Costs use each brand’s list price, checked October 15, 2026 to November 3, 2026, so they can differ from the Amazon price on the button. Sports Research has no list price we could read, so its cost uses the Amazon price.

✓ Also on a testing list (3)

NSF/ANSI 173 also lists these berberine products.

• Theralogix Berberine (NSF/ANSI 173). Amazon sells it only in a bundle with Ovasitol, so there is no single bottle to compare.
• Thorne Berberine 200 mg (NSF/ANSI 173). A lower-dose Thorne bottle. The 500 mg Thorne in the table above is the one we compare.
• Aurora Nutrascience, Genex, Toplux and We Like Vitamins (NSF/ANSI 173). Each has a berberine product on NSF’s list as of August 25, 2026.

What testing has found in berberine

ConsumerLab’s berberine page says that in October 2025, 7 out of 13 brands tested had little to no berberine at all. In December 2023 it said that recent tests of 33 berberine supplements bought on Amazon and Walmart.com showed that many contained less than half the listed amount.

NSF/ANSI 173 checks that the label amount is in the bottle, and sets limits for lead, mercury, arsenic and cadmium. The lists do not print a number for each product. A listing means the product met the program’s limits.

Not on a testing list (6)

These 6 are on none of the five public lists: NSF/ANSI 173, NSF Certified for Sport, USP Verified, Informed Choice, Informed Sport.

1. 

   NutriFlair Berberine + Ceylon Cinnamon

   Not on a testing list

   2 capsules (1,200 mg). Berberine HCl plus 100 mg Ceylon cinnamon.

   $0.47 a day at list price

   Buy on Amazon · $27.97
2. 

   Nutricost Berberine 1200

   Not on a testing list

   2 capsules (1,200 mg). Plain berberine HCl.

   $0.70 a day at list price

   Buy on Amazon · $18.89
3. 

   Sports Research Berberine

   Not on a testing list

   2 capsules (1,000 mg). 500 mg a capsule.

   $0.53 a day at Amazon price

4. 

   Double Wood Berberine HCl

   Not on a testing list

   2 capsules (1,000 mg). 500 mg berberine HCl a capsule; the label serving is 1 capsule. Double Wood says an ISO 17025 lab tests each batch and posts the reports (brand-posted reports, not a public list).

   $0.66 a day at list price

   Buy on Amazon · $18.95
5. 

   Integrative Therapeutics Berberine

   Not on a testing list

   2 capsules (1,000 mg). 500 mg berberine HCl a capsule; the label says 2 to 3 a day.

   $1.09 a day at list price

   Buy on Amazon · $32.75
6. 

   NOW Berberine Glucose Support

   Not on a testing list

   3 capsules (1,200 mg). 400 mg berberine HCl in MCT oil, per softgel; the label says 3 a day.

   $1.33 a day at list price

   Buy on Amazon · $19.99

What does each program check?

How to check your own bottle

1. Look for the NSF mark on the bottle. “Third-party tested” in words is the brand’s claim, not a listing.
2. Search NSF’s list for the exact product name and the brand.
3. Read the Supplement Facts for berberine in mg a capsule. On phytosome products the weight includes the fat carrier, so the berberine is less than the label weight.
4. Aim for 1,000 to 1,500 mg a day in total, which is the range many trials used. See the dosage guide.

Comparing on more than testing? See the best berberine supplement.

Questions

Sources

1. ConsumerLab. Berberine supplements review: “Berberine Blunders” (Oct 16, 2025) and “Problems With Berberine Sold on Amazon” (Dec 22, 2023). consumerlab.com, read November 3, 2026.
2. NSF/ANSI 173 dietary supplement list, company searches for Toniiq, Thorne, Momentous, Codeage, Theralogix, Double Wood and Sports Research, read November 3, 2026: info.nsf.org. Liposomal and other berberine listings from its August 25, 2026 snapshot.
3. NSF Certified for Sport: Momentous Berberine, listing 1752880: nsfsport.com.
4. USP Verified, Informed Choice and Informed Sport: each program’s own list, searched for berberine (Informed Choice October 27, 2026, Informed Sport and USP Verified September 22, 2026 snapshots; none lists a berberine product).
5. Brand pages read November 3, 2026: Momentous, Codeage, Double Wood.