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Layer 1 · Decision
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DoNotAge

Pure Berberine

Metabolic · Powder · 30 servings

Label snapshot

What the label says

What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.

Active per serving
Berberine 1,500 mg
Form
Powder
List price (catalog, USD)
$30.00
Price per serving
$1.00List price divided by servings per container. A per-day cost only if the label serving is once daily.
Full label record: servings, testing, ingredients
Servings per container
30
Serving size (label)
1.5 g
Catalog monthly estimate
$30.00
Testing disclosure
Brand lists third-party testing and a public certificate of analysis (CoA)Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Berberine1,500 mg

What to check on the label

  • Whether the figure is per capsule or per day, and how many capsules the label's daily serving contains.
  • The salt form named (berberine HCl, dihydroberberine, Ca-AKG). The catalog does not convert between forms.
  • Many labels carry interaction warnings for berberine. Read the label warning and the safety section on this page.

Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.

Editorial score and research-dose calculations

These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.

8.3/10
Overall score
#1 / 20 in Metabolic

Full trial dose, public lab certificate, tested by independent lab.

Read the evidence (1 study)
Add to compareVisit brand site →
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
See the 1 supporting study
How we scored this product Show the full breakdown
Dose vs. studies (50%) Why 10.0 of 10. Primary ingredient is Berberine (evidence grade A). It delivers 1500 mg, inside the studied range of 900–1500 mg. Read the rule → 10.0
Transparency (20%) Why 9.5 of 10. Earned points for public certificate of analysis and independent third-party testing and all doses disclosed. Read the rule → 9.5
Value (10%) Why 8.7 of 10. One day at the trial dose costs about $1.00. That is cheaper than average (113 of 313 by cost per effective day). Read the rule → 8.7
Formulation (10%) Why 5.0 of 10. No published absorption advantage or disadvantage on file. The default of 5 is not a criticism. Read the rule → 5.0 Default. No absorption data on file.
Safety (5%) Why 8.5 of 10. Baseline 5.0. Third-party testing adds 2.0. Public lab certificate adds 1.5. NSF, USP or Informed Choice certification adds 1.5. Active safety signal subtracts 3.0. Read the rule → 8.5
Community sentiment (5%) Why 8.7 of 10. Sentiment across 6 external review source(s) is mostly positive. Community is a signal about daily use, not proof of effect. Read the rule → 8.7
Composite How this 8.3 is built. 0.50 × 10.0 + 0.20 × 9.5 + 0.10 × 8.7 + 0.10 × 5.0 + 0.05 × 8.5 + 0.05 × 8.7 = 8.3 out of 10. Safety caps applied after. 8.3
8.3 composite
Dose vs. studies50%10.0
Transparency20%9.5
Value10%8.7
Formulation10%5.0
Safety5%8.5
Community5%8.7

Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Editorial verdict

Quick verdict

8.3 / 10
Best for
Full trial dose, Public lab certificate
Avoid if
No major red flags
Full-dose status
Meets trial dose
Price/month
$30
COA status
Public
Biggest caveat
No significant weaknesses identified in the current scoring framework.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $30.00
Last price check: Sep 01, 2026
Add to compareVisit brand site →
Layer 2 · Context

Our summary

Pure Berberine is a plain 500 mg berberine HCl capsule sourced from Berberis aristata, sold at a strong price point (roughly $0.80/day at the base dose). Berberine itself is one of the better-evidenced natural compounds in this category, with genuine RCT and meta-analysis support for glucose, lipid, and modest weight benefits — but that evidence generally used total daily doses of 900-1500 mg, meaning a single DoNotAge capsule undershoots the classic research dose and two to three per day are needed to match it. Buyers stacking this with NMN or NR should also be aware of an independent mechanistic critique suggesting berberine may transiently work against NAD+ precursor supplementation if taken at the same time of day.
In plain language

Why this scored this way

This DoNotAge Pure Berberine scores 9.1, making it one of the highest-scoring products on the site. It delivers 1500mg of Berberine, inside the studied range of 900–1500mg with grade A evidence (strong human trial data). Transparency is a clear strength (score: 9.5), with third-party testing and a public lab certificate.

What drives the score up

  • Dose-evidence score of 10.0 reflects good alignment with trial doses.
  • Quality transparency of 9.5: tested by independent lab with a public lab certificate.
  • Community score of 8.7 with positive consumer feedback.
  • Berberine is dosed at the full research level with grade A evidence (strong human trial data).

What drags it down

  • No significant weaknesses identified in the current scoring framework.

Why you'd choose it

  • You want a reasonably priced metabolic product.
  • You want Berberine from a DoNotAge product.
  • You prioritise tested by independent lab products with public lab certificates.

Why you might skip it

  • You want a product in a different category.
  • You want a cheaper metabolic option.
  • You prefer products with more consumer feedback.
Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

Berberine

Plant-derived AMPK activator; near-drug-strength effects on blood sugar and lipids.

1 landmark RCT · US: Dietary supplement · EU: Restricted in Italy (drug status ≥10 mg); food supplement elsewhere
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
100% of trial dose
Meets or exceeds the published effective dose
Cost at trial dose
$1.00/day at trial dose
What one effective daily dose actually costs
Transparency
9.5/10 · Public lab certificate (quality: not assessed)
Independent batch testing confirmed
Consumer signals
No consumer signals collected yet
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.

!
Review advised
berberine: CYP3A4 interactions
Safety signals
Drug interaction risk — berberine
Berberine inhibits CYP3A4, CYP2D6, and CYP2C9 even at moderate doses. Documented interactions with immunosuppressants, statins, anticoagulants, and antidiabetic drugs. Consult a physician if taking prescription medications.
Read more
Safety flag
berberine: CYP3A4 interactions
Dose or interaction risk detected. See ingredient page for details.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Berberine1500 mgEvidence A

Plant-derived AMPK activator; near-drug-strength effects on blood sugar and lipids.

Read about Berberine →
Layer 3 · Evidence vault

Product data & verification

Hard numbers and independently checked status. Expand each block for its source.

The numbers

Price
$30
per bottle · 30 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$1.00
what one effective daily dose costs
$ / g active
$0.67
per gram of active substance
Independently checked

Data verification

COA status
Public
Evidence grade
A
Per-ingredient breakdown
ABerberine

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Evidence
Berberine
Plant-derived AMPK activator; near-drug-strength effects on blood sugar and lipids.
Yin et al. 2008 (Metabolism)
1500 mg 100% of trial dose
1500 mg
4.3 /5
Medium confidence Strong value signal
3,152 reviews across 2 platforms (7 sources)
Source diversity: 70%
Examine.comTrustpilot
PraiseExamine rates berberine as one of the best-evidenced natural glucose-lowering ag
Last checked: 2026-08-20

Consumer signals

Consumer signals gathered from 7 platforms.

Low confidence, small sample

Consumer sentiment compiled from 1 public source (Examine.com). Small sample size, treat as directional only.

Examine.com

positive sentiment

Praise

Examine rates berberine as one of the best-evidenced natural glucose-lowering agents.

Compiled from an Examine.com listing located during manual research; not independently re-verified against the live page at build time.

Trustpilot

556 reviews · 4.1/5

Same brand profile on Trustpilot country sites: UK 4.4 · Germany 4.4 · Switzerland 4.4 · Italy 4.3 · Spain 4.5.

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

What others say, with a source hierarchy

We treat external opinion very differently depending on where it comes from. Tier A is our strongest signal. Tier C is background sentiment only. Tier Rejected is what we excluded, listed openly so you can see what we discarded.

These reviews are aggregated from third-party sources, not written by NO1GEVITY. Each entry shows its source, retrieval date, and whether the source has an affiliate or paid relationship. We do not edit reviews to change their meaning. Disclosure policy.

Tier B

Registered dietitians and physicians, without affiliate ties

Credentialed commentary from clinicians who disclose no paid relationship. Useful as supporting critique but not a substitute for a clinical outcome trial.

Physician YouTube analysis — DoNotAge Longevity Sachet
Has affiliate relationship Not a paid placement

Detailed ingredient walk-through. Discount code and buy link present, so the editorial score is discarded; ingredient/dose facts extracted.

How we use it: Ingredient/dose facts only. Editorial rating rejected.
Tier C

Aggregated sentiment (Trustpilot, Reddit)

Mood indicator only. We never use aggregate stars as evidence of efficacy.

Trustpilot — DoNotAge (aggregated sentiment)
No affiliate relationship Not a paid placement

Aggregate score ≈ 4.3-4.5 / 5. Mood indicator only.

Finding: 4.3-4.5 / 5.
How we use it: Sentiment only. Never used as evidence of efficacy.

Community threads and aggregate ratings

Additional public mentions we located, kept separate from the deep independent reviews above.

Examine.com
positive

Examine rates berberine as one of the best-evidenced natural glucose-lowering agents.

Read source → Unverified · we received no payment for this listing
Layer 3 · Evidence vault

Evidence, claims & regulation

Published evidence, claim checks, regulatory status and what could not be verified.

Evidence, what actually backs this product

Longevity brands rarely test their exact finished product. We separate what's tested from what's inferred.

Strongest evidence tier
Tier 3Ingredient RCT (matching dose)
4 studies mapped
Tier 3Ingredient RCT (matching dose)
Efficacy of berberine in patients with type 2 diabetes mellitus
Yin J, Xing H, Ye J · 2008 · Metabolism · n=116 · 500 mg three times daily (1500 mg/day total) · 3 months
ingredient-levelpeer-reviewed
This widely cited pilot compared berberine head-to-head with metformin and found comparable reductions in fasting and postprandial blood glucose and HbA1c, establishing 500 mg three-times-daily as the classic 'clinical' berberine dose.
The total daily dose used here (1500 mg) is 50% higher than DoNotAge's own 'perfect dosage' recommendation of 1000 mg/day, and this was an open-label pilot rather than a placebo-controlled, double-blind design, which limits confidence in the magnitude of the effect.
Conflicts: Academic (Shanghai Jiao Tong University); no disclosed link to DoNotAge.
Source →
Tier 3Ingredient RCT (matching dose)
Meta-analysis of berberine's effect on metabolic profiles in type 2 diabetic patients
Various (systematic review authors) · 2021 · Journal of Diabetes Research (Wiley) · Typically 900-1500 mg/day across pooled trials · Varies by pooled trial (weeks to months)
ingredient-levelpeer-reviewed
Pooling multiple RCTs, this meta-analysis found berberine consistently improved fasting glucose, HbA1c, and lipid markers in type 2 diabetics, reinforcing that benefits cluster around total daily doses of roughly 1-1.5 g rather than lower amounts.
As a meta-analysis it strengthens confidence that berberine works at these doses in diabetic populations, but the pooled trials are heterogeneous in duration and berberine source, and none used DoNotAge's specific product.
Conflicts: Academic meta-analysis; no disclosed link to DoNotAge.
Source →
Tier 4Ingredient RCT (different dose)
Meta-analysis of berberine's effect on body weight and metabolic markers
Various (systematic review authors) · 2020 · Journal of Ethnopharmacology (meta-analysis) · Typically 500-1500 mg/day across pooled trials · Varies (typically 8-16 weeks)
ingredient-levelpeer-reviewed
Pooled analysis found berberine supplementation modestly but significantly reduced body weight, BMI, waist circumference, and inflammatory markers, though effect sizes were smaller than for prescription weight-loss agents.
Weight-loss effects are real but modest and should not be overstated relative to marketing framing that implies berberine rivals dedicated weight-loss therapies.
Conflicts: Academic meta-analysis.
Source →
Tier 5Mechanistic / animal / marketing
Berberine's disruption of the NADH/NAD+ ratio via mitochondrial Complex I inhibition
Cited via Toxicology Letters mechanistic work · None · Toxicology Letters · N/A · N/A
ingredient-levelpeer-reviewed
Mechanistic work indicates berberine can inhibit mitochondrial Complex I, temporarily shifting the NADH-to-NAD+ ratio in a way that could partially counteract simultaneous NAD+ precursor supplementation (like NMN or NR) if taken at the same time.
This is an important consumer-relevant nuance for anyone stacking DoNotAge's Berberine with its NMN or NR: some independent analysts recommend separating berberine and NAD+ precursor dosing by several hours (e.g., NAD+ boosters in the morning, berberine with an evening meal) to avoid working at cross-purposes, though this specific claim was not independently verified against the primary journal article.
Conflicts: Independent mechanistic literature; surfaced via a third-party YouTube analysis, not verified first-hand by NO1GEVITY against the primary Toxicology Letters paper.
Source →
Evidence

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

BerberineYin et al. 2008 (Metabolism)

Claim check, vendor claims vs. our reading of the evidence

Not medical advice. We list the strongest claims made by the brand and check each against traceable evidence.

Partial support
“1000 mg/day is 'the perfect dosage for supporting a healthy lifespan according to some of the leading scientists in the field'”
Most classic RCTs (e.g., Yin 2008) used 1500 mg/day (500 mg three times daily), 50% more than DoNotAge's headline 1000 mg/day recommendation; 1000 mg/day sits within the general range studied but is not the most evidence-backed specific dose, and no named 'leading scientists' are cited for this specific dosing claim.
Vendor source
Supported
“Berberine activates AMPK, a longevity pathway triggered by fasting and exercise”
This is a well-established mechanistic finding in the pharmacology literature and is consistent with berberine's known mode of action; multiple human RCTs support downstream metabolic benefits consistent with AMPK activation.
Vendor source
Supported
“Supports healthy glucose metabolism and cardiovascular markers”
Multiple RCTs and meta-analyses in people with type 2 diabetes or metabolic syndrome consistently show berberine lowers fasting glucose, HbA1c, and improves lipid markers, generally at total daily doses of 900-1500 mg — DoNotAge's product can reach this range only if two or three capsules are taken daily.
Vendor source

Regulatory status

Rules change often. We record when we last verified each row. See the full regulatory timeline →

US
Legal as supplement
Berberine is sold as a standard dietary ingredient in the US with no FDA restriction comparable to NMN's drug-preclusion issue.
Last verified 2026-08-05
EU
Restricted
In March 2026 EFSA published a draft scientific opinion on berberine-containing plant preparations, concluding that a safe intake level could not currently be established and flagging potential genotoxicity/carcinogenicity concerns; this signals a possible future tightening of EU rules, though no outright ban is yet in force.
Last verified 2026-08-05
UK
Legal
Sold as a food supplement in the UK; no specific UK-only restriction identified, though UK regulators often track EFSA opinions closely and a future alignment with EU caution is possible.
Last verified 2026-08-05
CA
Restricted
Berberine-containing products marketed with health claims in Canada generally require Health Canada Natural Health Product licensing; DoNotAge's product was not confirmed to hold an NPN.
Last verified 2026-08-05

What we could not verify

We list this openly. If a claim isn't backed by a source we can trace, we'd rather flag it than repeat it.

  • The specific claim that berberine's effect on the NADH/NAD+ ratio meaningfully undermines simultaneous NMN/NR supplementation in humans, at consumer-relevant doses, was not independently confirmed against the primary Toxicology Letters source.
  • Whether DoNotAge's specific berberine extract has been tested in any registered clinical trial (as opposed to generic berberine HCl from other suppliers) was not confirmed.
  • Trustpilot aggregator
    4.1/5556 reviews

    This is a brand-level customer-service profile for donotage; it does not isolate Pure Berberine.

    verified 2026-08-07Open source →
  • Reddit r/Supplements community forum
    mixed sentiment

    Community discussion exists around Pure Berberine, highlighting possible blood-sugar and craving benefits alongside gastrointestinal side effects and dosing or quality concerns. No single Reddit thread is treated as a representative product review.

    no direct URLchecked 2026-08-07
Important to know
BerberineStandard berberine has ~5% oral bioavailability. Dihydroberberine and berberine phytosomes absorb better. Split doses across meals (500 mg × 3) to avoid GI upset.

Editorial notes

Full trial dose in one pack. Split into 3× 500mg.

Go deeper

Where this sits

Actives inside
Berberine
Category
See all in Metabolic →
Ranking
See top 10 Berberine supplements →
Brand
DoNotAge profile →
Add to compare Visit brand site →
Brand owners

Spot an error?

If you are the manufacturer or brand owner of Pure Berberine and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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