MADE IN THE USA – VETERAN OWNED – 3RD PARTY TESTED
Take Quiz
“It has helped my blood sugar levels so much” Rachel D. “My A1C has gone from 6.2 to 5.6” Judy R. “Very high quality product” Ronald B. “BERBERINE is the best!” Victoria G.
  • Berberine overview infographic
  • Berberine
  • Berberine product image 2
  • Berberine product image 3
  • Berberine product image 6
  • Berberine
  • Berberine
  • Berberine
  • Berberine product image 5
  • Berberine bottle

4.9 972,661+ Happy Customers

Steady Your Blood Sugar with Berberine (1,200mg)

Steadier Energy, Fewer Crashes & Metabolic Support
Blood Sugar Support
Steadier Daily Energy
Full 1,200 mg Dose
Made in the USA
Third-Party Tested
90-Day Guarantee
Delivered by Aug. 22–24 🇺🇸 Fast US Shipping
Trusted by 972,661+ Americans Made in the USA. Veteran-owned.
90-Day Guarantee

We offer a 90-day money-back guarantee.

If you don't feel the difference, we'll issue a full refund — no questions asked. Simply reach out to our support team.

The Science Behind It

Berberine works by activating AMPK — an enzyme researchers call the body’s “metabolic master switch.” AMPK helps regulate how your cells take up and use glucose, which is why berberine is one of the most-studied natural compounds for metabolic health.

The clinical research on berberine has typically used 900–1,500 mg per day. Each two-capsule serving delivers a full 1,200 mg — squarely in the studied range.

Berberine works gradually — the most meaningful support for healthy blood sugar and metabolic function typically builds over 2–3 months of consistent daily use.*

How to Take

Take 2 capsules daily with a meal — taking berberine with food supports comfortable digestion and matches how your body uses it.

Berberine is a long-game supplement: consistency matters far more than timing. Same time every day is the habit that pays off.

Shipping & Returns

We offer tracked shipping on all orders, processed within 24 business hours on weekdays.

U.S. orders typically arrive in 3–5 days. Shipping is free on subscriptions and on one-time orders over $50.

Returns are easy. Every order is covered by our 90-day money-back guarantee — email help@lumanutrition.com and we’ll handle everything.

Is It Safe?

Yes — our berberine is made in FDA-registered, GMP-certified U.S. facilities with no proprietary blends — every dose is stated plainly on the label. Every batch is third-party tested for purity and potency by an independent ISO 17025-accredited lab.

Berberine is generally well-tolerated at this dose. However, if you’re pregnant, nursing, or taking medication (especially blood sugar or blood pressure medication), we recommend consulting your healthcare provider before use — just to be safe.

Ingredients

1,200 mg of Berberine HCl (from Berberis aristata bark) per 2-capsule serving.

No artificial dyes or preservatives. Made in FDA-registered, GMP-certified U.S. facilities.

3rd-Party Testing

Every batch is tested by an independent ISO 17025-accredited lab — potency, heavy metals, and microbiology. We publish every result. Click here.

Start feeling these benefits in 90 days or less.

Berberine works on how your body handles glucose at the cellular level. If your energy crashes after meals, the afternoon slump hits hard, or your last bloodwork nudged the wrong way, this is the first thing worth ruling out.

Steadier energy

Supports steadier blood sugar after meals, so the spike-and-crash cycle flattens out.

Blood sugar support

Supports healthy glucose metabolism and blood sugar already in the normal range.

Metabolic health

Activates AMPK — the same cellular pathway your body switches on with exercise.

Cholesterol support

Supports healthy cholesterol levels already in the normal range.

What real customers are saying.

★★★★★ 4.9 · 1814 reviews · verified buyers of this formula

Rachel D.
★★★★★

“Been using for awhile now and have to say it has helped my blood sugar levels so much. I also feel so much better. Would definitely recommend”

Rachel D.Berberine · Verified buyer
Judy R.
★★★★★

“I love berberine it keeps my sugars at a good level. My A1C has gone from 6.2 to 5.6. I make sure I have it on hand. Nothing and I mean nothing works like it. And I’ve tried a few.”

Judy R.Berberine · Verified buyer
Ronald B.
★★★★★

“Been using Berberine for over five years now. It has help keep my Diabetes and High Blood Pressure in check along with my prescription medications. Very high quality product.”

Ronald B.Berberine · Verified buyer

Most berberine bottles cut the clinical dose.

Stop paying for a label that skips the dose used in the research.

Under-dosed

The research on berberine used 900–1,500 mg per day. Many bottles deliver a fraction of that per serving and never say so on the front.

Hidden blends

Proprietary blends let a brand put berberine on the label while telling you nothing about how much is actually inside a capsule.

Untested

Many brands claim third-party tested. Can they prove it? Ask them for a result. We post ours freely. Click here.

We built this bottle to a higher standard. Here’s the proof.

Premium quality for a fair price. The Luma 4-Point Verification checks potency, purity, microbiology and identity confirmation on every batch. We publish the results of all third-party testing.

Why our Berberine is better.

LumaOthers
Full Clinical Dose1,200 mg500 mgDose Stated On LabelYesNoNo Proprietary BlendsYesNoThird-Party TestedYesNoPublished Lab ReportsYesNo
Per daily serving. Others = median across the ten best-selling berberine bottles, Amazon, June 2026.

How long until I see results?

Berberine builds with consistent daily use, so it steadies rather than hitting all at once. Typical, not guaranteed — which is why the guarantee runs 90 days.

Week 1–2 Steadier after meals

The first thing most people notice: the post-meal spike-and-crash starts to flatten out.

Week 3–4 The slump fades

Afternoon energy evens out as your body's glucose handling steadies with daily use.

Week 8+ The bloodwork window

Metabolic markers move slowly. This is the window where retests tend to show it.

Trusted by world-class medical professionals.

Dr. Kela Smith
Dr. Kela SmithPhD, DNM
Integrative & functional medicine✓Recommends for metabolic support

“What I really love about Luma Nutrition is how dedicated they are to purity, proper dosing, and smart formulation.”

Dr. Blane Schilling
Dr. Blane SchillingM.D.
Sports & regenerative medicine✓Recommends for joint and recovery

“These aren’t just pretty labels. They really deliver. The dosing is where most brands quietly cut corners.”

Dr. Erica Ginsburg
Dr. Erica GinsburgM.D.
Internal medicine✓Recommends for heart health

“Quality ingredients, appropriate dosing, thoughtful formulations. I’m comfortable recommending them to patients.”

These practitioners partner with Luma Nutrition as paid ambassadors, sharing their own opinions and experience.

Jake Langley, founder of Luma Nutrition

I couldn’t find a brand I trusted. So I built one.

It started with a supplement I almost bought for my parents. The label looked impressive. But I couldn’t find any test results, and the dose was a fraction of what the research used.

The Army drilled honor and integrity into me. You don’t cut corners when people are counting on you. The supplement industry cut them everywhere I looked.

So I built Luma to a higher standard: meaningful doses, independent testing on every batch, and verified results anyone can see.

Nothing goes in these bottles that I wouldn’t give my family or take myself. We’ll never ask you to trust a claim we aren’t willing to prove.

Questions? Reach out. I read and answer them.

Jake Langley signature
Jake LangleyFounder · U.S. Army Infantry Officer
Jake’s Deal

Take it for 90 days. If you don't feel steadier, you get your money back.

We refund the whole order, empty bottles included. We stand behind the quality of what we make, and we’re confident enough to put our money where our mouth is.

Jake Langley signature Jake Langley · Founder, U.S. Army Officer
Shop this formula
Jake Langley
90-day money-back guaranteeEmpty bottles included
Made in the USAFDA-registered, NSF GMP
Third-party testedEvery batch, published
Veteran-ownedFounded by a U.S. Army officer

Questions before you order.

How long until I see results?

Most people notice steadier energy after meals within the first two weeks. Blood sugar and cholesterol markers move slower — give it eight to twelve weeks before a retest. Berberine builds with consistent daily use.

How many capsules do I take, and when?

Two capsules a day with meals — one with lunch and one with dinner works well for most people. Taking it alongside food is when it does its best work.

Will it upset my stomach?

Berberine is generally well tolerated at this dose. A small number of people notice loose stools or mild cramping in the first week; taking it with food usually settles it. If not, drop to one capsule and build back up.

Can I take this with my prescriptions?

Ask your doctor or pharmacist first — especially if you take blood sugar or blood pressure medication, as berberine can add to their effect. Call us before you order and we will talk it through.

How is this different from a cheaper berberine?

Most bottles deliver a fraction of the researched dose or hide it inside a proprietary blend. We use a full 1,200 mg daily dose of berberine HCl, state it plainly, and publish a lab report for every lot.

What if it does not work for me?

You get your money back. The whole order, empty bottles included, for 90 days. No forms and no restocking fee.

Real customers, real results.

Verified buyers of this formula, in their own words.

4.9★★★★★1814 reviews
5★91%
4★6%
3★2%
2★1%
Read all 1814 reviews →
Individual results vary. These statements have not been evaluated by the FDA.