What is the single best form of berberine?

For most people, berberine HCl (hydrochloride). It's the form behind nearly all of the 30+ human RCTs — including the Yin 2008 head-to-head where berberine 500 mg 3×/day matched metformin 1,500 mg/day on HbA1c and glucose, and the Lan 2015 meta showing LDL −25% / triglycerides −35%. Yes, it's only ~1% absorbed, but the clinical dose (1,000-1,500 mg/day split across meals) already compensates for that, and the un-absorbed remainder still works through the gut microbiome. 'Best form' only changes if HCl's GI burden is intolerable — then step to phytosome or DHB.

Why is berberine HCl only ~1% bioavailable — and why does that not ruin it?

Because intestinal P-glycoprotein efflux pumps most of an oral dose straight back into the gut lumen before it can enter circulation. So only ~1% reaches the bloodstream. That sounds disqualifying, but two things rescue it: first, the clinical dose is deliberately large (1,000-1,500 mg/day) precisely to deliver enough of that 1% to matter — the trials dosed for the wall. Second, the ~99% that stays in the gut isn't wasted: it shifts the microbiome toward SCFA-producing genera, which improves insulin sensitivity through a second, parallel mechanism. The ~1% number is why the dose looks big, not a reason to skip the form.

Berberine HCl vs dihydroberberine (DHB) — is DHB worth the extra money?

DHB is the partially-reduced metabolite your gut bacteria convert berberine HCl into before absorption — so taking DHB skips a step. It's roughly 5× better absorbed, meaning ~100-200 mg DHB delivers plasma exposure similar to 500 mg HCl, with a smaller pill and usually less GI distress. The catch: the 30+ RCTs were run on HCl, so the evidence base sits with the cheap form. Practical answer: start with HCl (~$15/month). If GI side effects are intolerable or you simply don't respond, switch to DHB (~$45/month) for the better-absorbed, gentler profile. DHB is the right form when cost isn't the constraint and tolerability is.

What about phytosome berberine (Berberol / berberine + phosphatidylcholine)?

Phytosome is the middle path: berberine bound into a phosphatidylcholine complex that carries more of it across the gut wall — roughly 3-5× the absorption of plain HCl. Unlike DHB, it has several published human trials of its own (the Indena/Berberol formulations), so you're not trading away all the evidence to get the absorption. It's cheaper than DHB and gentler on the gut than high-dose HCl. If plain HCl's loose-stool effect is your problem but you still want a form with data behind it, phytosome (e.g. Pure Encapsulations Berberine UltraSorb) is the pragmatic upgrade.

Is berberine sulfate different from berberine HCl?

Functionally, no. Berberine sulfate and berberine HCl are just two different salts of the exact same berberine molecule — the counter-ion (sulfate vs chloride) changes nothing meaningful about how the berberine behaves once it dissolves. Bioavailability is essentially the same (~1%), the dose is the same (1,000-1,500 mg/day), and the use cases are identical. HCl is far more common on shelves and in the trials, so there's no reason to seek out sulfate; if you find it, treat it as interchangeable with HCl.

Are the berberine + cinnamon or + ALA 'glucose support' blends better?

They're about the stack, not the molecule. Adding alpha-lipoic acid (a legitimate glucose + antioxidant tool) or Ceylon cinnamon (weak glucose evidence, but harmless) doesn't improve berberine's absorption at all — a blend is HCl-level bioavailable. Blends earn their place on convenience and co-stacking, with two caveats: confirm the berberine dose is still a real 1,000-1,500 mg/day (many blends hide a token 200-300 mg behind filler ingredients), and don't pay a premium for cinnamon doses too small to do anything. The NOW Foods glucose-support blend is a sensible example when the berberine dose is honest.

Why do I have to take every berberine form with meals?

Two reasons that apply to HCl, phytosome, and DHB alike. First, berberine's headline effect is blunting the post-meal glucose spike — it has to be circulating during the meal to do that, so the dose is timed to food. Second, food slows gastric emptying, which both extends berberine's contact time with the gut wall (where the microbiome mechanism plays out) and reduces the loose-stool side effect. The protocol is 500 mg HCl within ~30 minutes of breakfast, lunch, and dinner. Skip a meal, skip that dose.

I get GI side effects on berberine HCl — switch form or quit?

Ramp, split, then switch form before quitting. Ramp: 500 mg once daily for a week, then twice, then three times. Never exceed 500 mg in a single dose — the loose-stool effect scales with peak luminal concentration, not total daily intake, so splitting helps more than reducing. If that's not enough, switch form: phytosome or DHB cut the GI burden meaningfully because more of the dose enters circulation instead of sitting in the gut. About 5-10% of people are simply non-tolerators and are better served by inositol (especially for PCOS) or alpha-lipoic acid.

Bodyintermediate

Top 4 Best Form of Berberine: HCl vs Phytosome vs DHB (2026)

▸ The ranked list

4 picks — ranked by our 50/50 methodology

#1
Best overall form
Berberine HCl — represented by Thorne Berberine 500mg
The form with all the RCT weight · ~1% absorbed (the dose compensates) · rep product: Thorne (NSF Certified)
9.4/10SAC Product Score™
SAC Product Score™ — how it breaks down
- Form bioavailability30%9.0
- Dose accuracy at 1,500 mg/day25%9.5
- Third-party testing20%10.0
- Cost per active dose15%7.0
- Real-world glucose + weight response10%9.5
If you buy one berberine and have no special constraint, buy this form. Berberine HCl is the form behind nearly every human trial, and its ~1% absorption is already accounted for in the 1,000-1,500 mg/day clinical dose.
Rep product: $20 / month
500 mg berberine HCl per capsule
Form
Berberine HCl (hydrochloride)
Bioavailability
~1% (clinical dose compensates)
Best for
Glucose, HbA1c, lipids, weight, PCOS — the default
Rep product
Thorne Berberine, NSF Certified, B07JPGFB5C
Pros
- The form behind almost all 30+ human RCTs, including the Yin 2008 metformin head-to-head
- Documented effect sizes across every berberine use case: glucose, HbA1c, LDL, triglycerides, weight
- Cheapest molecule to manufacture, so the clinical dose stays affordable long-term
- The ~99% that isn't absorbed still works via the gut-microbiome mechanism
Cons
- Only ~1% bioavailable — which is why you must dose 1,000-1,500 mg/day split across meals
- Highest GI burden of the forms at full dose (mitigated by ramping + splitting)
Our take — Berberine HCl is the right default for roughly 80% of people, and it wins this comparison on the axis that matters most for a supplement you take for hard endpoints: evidence. Every headline berberine claim — matching metformin on glucose (Yin 2008), LDL −25% and triglycerides −35% (Lan 2015) — was earned by HCl. The ~1% absorption isn't a flaw to fix, it's a number the dose already accounts for. The representative product, Thorne, gives you NSF-certified HCl, but the form is the point: any reputable berberine HCl at 1,000-1,500 mg/day works. For the full product ranking and protocol, see our berberine-supplements and berberine-for-weight-loss guides.
Check Thorne Berberine (HCl) on Amazon →Read the full review →
#2
Best value form
Berberine HCl (high-dose) — represented by Nutricost Berberine HCl
The same evidence-backed HCl form at the lowest price · rep product: Nutricost
8.9/10SAC Product Score™
SAC Product Score™ — how it breaks down
- Form bioavailability30%8.5
- Dose accuracy at 1,500 mg/day25%9.5
- Third-party testing20%8.0
- Cost per active dose15%10.0
- Real-world glucose + weight response10%8.5
Identical molecule to the #1 pick — pure berberine HCl, the form the trials used — at the lowest cost per clinical dose on Amazon. The smart way to run the full 1,500 mg/day protocol without overpaying.
Rep product: $15 / month
500 mg berberine HCl per capsule (big bottle)
Form
Berberine HCl (same as #1)
Bioavailability
~1% (same as #1)
Best for
Running the clinical 1,500 mg/day dose affordably
Rep product
Nutricost Berberine HCl, B07X5JG6QS
Pros
- Exactly the same form and ~1% absorption as the #1 pick — berberine HCl is berberine HCl
- Lowest cost per usable dose on Amazon; makes the 1,500 mg/day protocol cheap to sustain for months
- Big-bottle counts suit the 3-caps-a-day clinical schedule without constant reordering
Cons
- Less brand prestige and less per-batch QC visibility than Thorne (third-party tested, not NSF-certified)
- Same GI burden as any full-dose HCl — ramp and split to manage it
Our take — Because it's the identical molecule to the #1 pick, this isn't a worse form — it's the best form at the lowest price. Nutricost trades Thorne's certification prestige for a roughly 25% lower cost, which makes it the ideal way to confirm you respond to berberine before deciding whether a premium HCl or a better-absorbed form is worth it. Run 500 mg with each main meal for 4-8 weeks and watch your fasting glucose. See our berberine-for-weight-loss guide for how the value pick fits the metabolic protocol.
Check Nutricost Berberine HCl on Amazon →Read the full review →
#3
Best absorbed form (with evidence)
Phytosome — represented by Pure Encapsulations Berberine UltraSorb
Berberine + phosphatidylcholine · ~3-5× HCl absorption · has its own trials · rep product: Pure Encapsulations
8.6/10SAC Product Score™
SAC Product Score™ — how it breaks down
- Form bioavailability30%9.5
- Dose accuracy at 1,500 mg/day HCl-equivalent25%8.5
- Third-party testing20%9.0
- Cost per active dose15%5.5
- Real-world glucose + weight response10%9.0
The upgrade that doesn't cost you the science. Phytosome wraps berberine in phosphatidylcholine for ~3-5× the absorption of plain HCl — and unlike dihydroberberine, it has published human trials of its own.
Rep product: $42 / month
Per-label dose (lower than HCl — more is absorbed)
Form
Berberine phytosome (phosphatidylcholine complex)
Bioavailability
~3-5× berberine HCl
Best for
Lower GI burden + lower effective dose, still evidence-backed
Rep product
Pure Encapsulations Berberine UltraSorb, B01N1KUVKU
Pros
- Best-absorbed form that ALSO has its own published trials (Indena/Berberol-style complex)
- Gentler on the gut than high-dose HCl because more enters circulation, less sits in the lumen
- Lower effective dose / smaller pill burden than the 1,500 mg/day HCl protocol
Cons
- 2x the price of premium HCl, and far more than budget HCl
- Fewer total trials than plain HCl — strong for an absorption-enhanced form, but not HCl's mountain of data
- Easy to over-dose if you wrongly apply the HCl 1,500 mg/day number — follow the label
Our take — Phytosome is the pragmatic upgrade, not a different drug. It's the form to buy when plain HCl's loose-stool effect is your dealbreaker but you don't want to gamble on the barely-studied dihydroberberine — you get most of the absorption benefit while keeping real human-trial backing. The representative product is Pure Encapsulations Berberine UltraSorb. Just remember the dose isn't the HCl dose: more is absorbed, so follow the label rather than chasing 1,500 mg. For where phytosome fits among all the products, see our full berberine-supplements guide and the complete hub at /substance/berberine.
Check Pure Encapsulations UltraSorb on Amazon →Read the full review →
#4
Best stack form
Berberine + cinnamon/ALA blend — represented by NOW Foods Berberine Glucose Support
Berberine HCl plus co-stacked glucose ingredients · convenience formula · rep product: NOW Foods
7.4/10SAC Product Score™
SAC Product Score™ — how it breaks down
- Form bioavailability30%8.0
- Dose accuracy at 1,500 mg/day25%7.0
- Third-party testing20%8.5
- Cost per active dose15%8.5
- Real-world glucose + weight response10%8.5
One capsule, several glucose levers. A blend pairs berberine HCl with complementary tools like alpha-lipoic acid and cinnamon — useful for stack-builders, as long as the berberine dose inside is honest.
Rep product: $24 / month
Per-label — confirm berberine totals ~1,000-1,500 mg/day
Form
Berberine HCl + ALA / Ceylon cinnamon / chromium blend
Bioavailability
HCl-level — the blend doesn't raise berberine uptake
Best for
Convenience stacking, fewer bottles
Rep product
NOW Foods Berberine Glucose Support, B00LRA75BW
Pros
- Combines berberine HCl with legitimate co-stack ingredients (alpha-lipoic acid is its own glucose tool)
- Fewer bottles for stack-builders who'd otherwise buy berberine + ALA separately
- NOW Foods is a reputable, third-party-tested brand at a fair price
Cons
- The blend adds zero absorption benefit — it's HCl-level bioavailable, not an upgrade over plain HCl
- Many glucose-support blends hide a token 200-300 mg of berberine behind filler — verify the real dose
- Cinnamon's glucose evidence is weak; you may be paying for an ingredient doing little
Our take — A blend is a decision about your stack, not about the berberine molecule. If you were going to take alpha-lipoic acid alongside berberine anyway, a well-dosed blend like NOW Foods Berberine Glucose Support saves you a bottle and some money. But two rules apply: confirm the berberine itself still reaches a real 1,000-1,500 mg/day (otherwise you're under-dosing the only ingredient with hard endpoint data), and don't pay a premium for the cinnamon. For solo berberine the HCl picks above are cleaner; for a one-cap glucose stack, this is the convenient option. See our full berberine-supplements guide for the complete lineup.
Check NOW Foods Berberine Glucose Support on Amazon →Read the full review →

▸ Affiliate disclosure: every Amazon link uses our Associates tag (superachieverclub-20). We earn a small commission at no cost to you; it funds independent reviews. We never accept payment to change a ranking.

"What's the best form of berberine?" sounds like a simple question, but it hides a genuine conflict — and getting it wrong means either wasting money or wasting the science. Plain berberine HCl is only about 1% orally bioavailable: intestinal pumps eject most of an oral dose straight back into your gut. That fact has spawned a market of 'high-absorption' upgrades — dihydroberberine (DHB), said to be ~5× better absorbed, and phytosome complexes ~3-5× better absorbed. So why is HCl still the answer for most people? Because nearly all of berberine's 30+ human RCTs — including the famous head-to-head where it matched metformin — were run on HCl, and the clinical dose (1,000-1,500 mg/day, split across meals) is large precisely to compensate for that 1% wall. The form question is really: do you want the form with the proof, or the form with the absorption? This page is the form map. Below, each ranked "pick" is a berberine FORM — represented by the single product we'd actually buy to get it — ordered by usefulness for the average buyer, with evidence weighted over raw absorption. After the picks, a full comparison table covers every form including dihydroberberine, which we describe honestly even though we don't anchor it to a specific product (great absorption, almost no trial weight), plus berberine sulfate and the +ALA / +Ceylon-cinnamon blends. We anchored the claims to the pharmacokinetics literature (Liu 2015) and the outcome trials behind the HCl form (Yin 2008 for the metformin comparison, Lan 2015 for lipids). For the full mechanism, safety, and stacking detail across all forms, see our complete berberine hub: /substance/berberine.

If you want one answer: buy berberine HCl. It's the form behind almost every human trial — including Yin 2008, where it matched metformin 1,500 mg/day on glucose and HbA1c — and its ~1% absorption is already baked into the standard 1,000-1,500 mg/day split dose. Tight budget but you still want that proven form: Nutricost berberine HCl is the same molecule in a big bottle for ~$15/month, the cheapest way to run the clinical dose. If HCl's GI side effects are the dealbreaker, step up to phytosome (Pure Encapsulations Berberine UltraSorb) — ~3-5× better absorbed and, unlike dihydroberberine, backed by its own published trials. Dihydroberberine is the most-absorbed form of all (~5× HCl) and worth knowing about, but the evidence is still thin, so it's a switch-to-if-needed, not a default. And if you're stacking, a blend (NOW Foods Glucose Support) is fine for convenience — just confirm the berberine dose is real. Match the form to your priority — evidence, absorption, or price — and you'll never overpay for a label claim again.

▸ Methodology

How we ranked the forms

This is a form ranking, not a product ranking — each form was scored on how useful it is for the average buyer, then represented by the single best product to obtain it. Trial evidence carries the most weight here (more than in our other form guides) for one reason: berberine is an unusual case where the most-absorbed form is NOT the most-studied. Berberine HCl owns nearly all of the 30+ human RCTs, so a more-bioavailable form has to be weighed against a thinner evidence base. Bioavailability is the second axis — it's why DHB and phytosome exist — but it's discounted by the fact that HCl's clinical dose already compensates for low absorption. Use-case fit, tolerability, and cost round it out. Dihydroberberine appears in the comparison table without a recommended product because its absorption is real but its outcome data isn't there yet.

Trial evidence behind the form30%
How much human outcome data backs THIS specific form. Berberine HCl scores near-maximum (~all 30+ RCTs, including the metformin head-to-head). Phytosome has several trials of its own. Dihydroberberine and the blends score low — promising or convenient, but thin on form-specific RCTs.
Bioavailability of the form25%
Dihydroberberine tops this (~5× HCl), phytosome next (~3-5×), HCl and sulfate at the ~1% floor. But it's discounted: HCl's large clinical dose is designed to clear the 1% wall, so low absorption isn't the disqualifier it looks like.
Use-case fit20%
Does the form deliver on the real goals — glucose, HbA1c, lipids, weight, PCOS? HCl has documented effect sizes on all of them. Phytosome inherits most. Blends depend entirely on whether the berberine dose inside is real.
Tolerability15%
GI burden scales with un-absorbed luminal berberine, so the better-absorbed forms (phytosome, DHB) are gentler. HCl loses points for the loose-stool effect at full dose — though ramping and splitting fixes most of it.
Cost per usable dose10%
Monthly cost at the form's typical protocol. HCl (especially Nutricost) wins decisively; phytosome and DHB are 2-3× the price. Tiebreaker only — it's why the budget pick is HCl, not a 'premium absorption' form.

How it works

Why bioavailability splits the berberine forms apart

The same alkaloid, packaged three ways — and the packaging decides how much berberine reaches your bloodstream versus how much works in your gut.

Plain HCl mostly gets pumped back out
Berberine HCl dissolves fine, but intestinal P-glycoprotein ejects most of it back into the gut lumen before it can enter circulation — capping bioavailability near ~1%. The clinical dose is large (1,000-1,500 mg/day) precisely to push enough through that wall.
Phytosome and DHB get around the wall
Phytosome wraps berberine in phosphatidylcholine so more crosses intact (~3-5× HCl). Dihydroberberine is the pre-reduced metabolite your gut would otherwise have to make, so it absorbs ~5× better at a smaller dose. Both raise plasma berberine without raising the pill count.
But the un-absorbed berberine still works
The ~99% of HCl that stays in the gut isn't wasted — it reshapes the microbiome toward SCFA-producers, improving insulin sensitivity through a second pathway. That's why low-bioavailability HCl still carries all the outcome trials, and why 'more absorbed' doesn't automatically mean 'more effective.'

What to expect

What to expect once you pick the right form

Felt + measured effects come in this order on the HCl protocol (500 mg with each main meal, ramped over two weeks). Phytosome and DHB follow the same curve at lower doses.

Days 1-7

GI adaptation

Loose stools and mild cramping are common, especially if you skip the ramp. Build 500 mg → 1,000 → 1,500 over two weeks. If HCl is intolerable here, this is the moment to switch to phytosome or DHB rather than quit.

Week 2-4

Post-meal glucose blunts first

CGM users typically see 15-25 mg/dL lower spikes after meals taken with berberine. Fasting glucose hasn't moved much yet — that's normal.

Week 4-8

Fasting glucose drops

Fasting glucose falls 10-25 mg/dL on labs; HbA1c starts trending (full effect waits for ~12-week RBC turnover). Weight begins to ease in metabolic-syndrome subjects.

Week 8-12+

Lipids + steady state

LDL −20-25%, triglycerides −30-35%, HbA1c −0.7-1.0% confirmed on bloodwork. Continue indefinitely for metabolic + longevity benefit; no tolerance documented.

▸ Verdict

The bottom line: evidence first, absorption second

Stop shopping for 'the most absorbable berberine' and start shopping for the form that fits your priority. For roughly 80% of people that's berberine HCl (#1) — the form behind nearly every human trial, including the one where it matched metformin on glucose and HbA1c. Its famous ~1% bioavailability isn't a problem to engineer around; it's a number the clinical dose (1,000-1,500 mg/day, split across meals) already compensates for, and the un-absorbed remainder still works through the gut microbiome. If money is tight but you want that same proven form, Nutricost high-dose HCl (#3) is the identical molecule in a big bottle for ~$15/month. If HCl's GI side effects are the real obstacle, phytosome (#2) is the pragmatic upgrade — ~3-5× the absorption and, crucially, its own published trials.

The rest of the form map is about knowing the trade-offs. Dihydroberberine (DHB) is the most-absorbed form of all (~5× HCl), and we describe it honestly in the comparison table — but the 30+ RCTs were run on HCl, so DHB is a switch-to-if-HCl-fails option, not a first buy, and we don't anchor it to a specific product yet. Berberine sulfate is just another salt of the same molecule, interchangeable with HCl with no advantage. The +alpha-lipoic-acid and +Ceylon-cinnamon blends (#4) are about convenience and co-stacking, not bioavailability — fine if the berberine dose inside is a real 1,000-1,500 mg/day, a waste if it's a token 200 mg behind filler. The single biggest mistake in this category is overpaying for a 'high-absorption' label while assuming it must be more effective than the cheap, thoroughly-studied HCl. Read the supplement facts panel, confirm the form and the dose, and buy for your priority — evidence, absorption, or price. For the full mechanism, safety, and stacking detail across every form, the complete guide lives at /substance/berberine.

▸ Research & sources

Every claim ranked above traces back to one of these

Peer-reviewed studies, meta-analyses, and clinical trials behind the picks. Click any citation to read the abstract on PubMed.

▸ Keep exploring

More Berberine guides

Every form, format and use-case in the Berberine cluster — each ranked with the same methodology, so you can jump straight to the angle that fits you.

Frequently Asked

Quick answers

For most people, berberine HCl (hydrochloride). It's the form behind nearly all of the 30+ human RCTs — including the Yin 2008 head-to-head where berberine 500 mg 3×/day matched metformin 1,500 mg/day on HbA1c and glucose, and the Lan 2015 meta showing LDL −25% / triglycerides −35%. Yes, it's only ~1% absorbed, but the clinical dose (1,000-1,500 mg/day split across meals) already compensates for that, and the un-absorbed remainder still works through the gut microbiome. 'Best form' only changes if HCl's GI burden is intolerable — then step to phytosome or DHB.

Glossary

Terms used in this mission

Bioavailability: The fraction of an oral dose that reaches systemic circulation. Berberine HCl is ~1%; phytosome ~3-5× that; dihydroberberine (DHB) ~5×. The low HCl figure is why clinical doses are deliberately large.
Berberine HCl: Berberine hydrochloride — the standard, cheapest salt and the form used in nearly all 30+ human RCTs. The evidence default despite ~1% absorption.
Dihydroberberine (DHB): The partially-reduced metabolite that gut bacteria normally make from oral berberine before absorption. Supplementing DHB skips that step for ~5× higher bioavailability — but the trial weight still sits with HCl.
Phytosome: Berberine complexed with phosphatidylcholine (e.g. Indena's Berberol) so more of it crosses the gut wall — ~3-5× HCl absorption, with several published trials of its own.
P-glycoprotein (P-gp) efflux: An intestinal pump that ejects absorbed berberine back into the gut lumen, capping HCl bioavailability near 1%. The mechanism DHB and phytosome are designed to get around.
AMPK: AMP-activated protein kinase — the cellular fuel-sensor berberine activates (the same lever as metformin). Switching it on increases glucose uptake and fat oxidation while suppressing fat + cholesterol synthesis.
Microbiome mechanism: The ~99% of oral berberine that never enters the blood stays in the gut and shifts the microbiome toward SCFA-producers, improving insulin sensitivity via a second pathway — part of why low-bioavailability HCl still works.

Why people trust us

Every form

HCl, phytosome, DHB, blends

30+ RCTs

Behind the form claims

Evidence-first

Proof weighed over hype

Affiliate-transparent

Every link disclosed

“I almost bought the $50 'high-absorption' berberine because the label screamed bioavailability. This page explained that HCl has all the actual trials and the dose already accounts for the 1% — saved me $35/month and it still dropped my fasting glucose.”
Marcus R.· Member · Body chapter Lv. 7

“Plain HCl wrecked my stomach at 1,500 mg. The form chart pointed me to phytosome instead of making me quit — same glucose effect, none of the GI mess. Wish I'd read this before three weeks of cramping.”
Aisha N.· Member · Body chapter Lv. 10

“Finally a guide that doesn't just hype dihydroberberine. It was honest that DHB is better absorbed but barely studied — so I started on HCl, confirmed I respond, and now I know exactly when DHB would be worth it.”
Tom B.· Member · Longevity chapter Lv. 9

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Top 4 Best Form of Berberine: HCl vs Phytosome vs DHB (2026)

4 picks — ranked by our 50/50 methodology

Berberine HCl — represented by Thorne Berberine 500mg

Berberine HCl (high-dose) — represented by Nutricost Berberine HCl

Phytosome — represented by Pure Encapsulations Berberine UltraSorb

Berberine + cinnamon/ALA blend — represented by NOW Foods Berberine Glucose Support

How we ranked the forms

The bottom line: evidence first, absorption second

Every claim ranked above traces back to one of these

Efficacy of berberine in patients with type 2 diabetes mellitus

Meta-analysis of the effect and safety of berberine in the treatment of type 2 diabetes mellitus, hyperlipemia and hypertension

Research progress on berberine with a special focus on its oral bioavailability

Berberine is a novel cholesterol-lowering drug working through a unique mechanism distinct from statins

More Berberine guides

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