Basics: short version, verdict first People Molecules Peptides Biomarkers Studies Stem Cells Editorial Methodology
Layer 1 · Decision
← All products
BulkSupplements

Quercetin Dihydrate Powder

Sirtuin activator · Powder (240-capsule variant also sold) · 100 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
Quercetin 1,000 mg
Form
Powder
List price (catalog, USD)
$26.97
Price per serving
$0.27List 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
100
Catalog monthly estimate
$8.09
Testing disclosure
No third-party testing listedStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Quercetin1,000 mg

What to check on the label

  • Whether the label says trans-resveratrol with a purity percentage, or only 'resveratrol' or 'Japanese knotweed extract'.
  • Whether the milligrams refer to the compound or to the extract it comes from.
  • Powders list a scoop size. Check that it matches the serving in the catalog.

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.

6.9/10
Overall score
#3 / 17 in Sirtuin activator

Top 9% value.

Read the evidence (3 studies)
Add to compareVisit brand site →
Watch out
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
See the 3 supporting studies
How we scored this product Show the full breakdown
Dose vs. studies (50%) Why 7.2 of 10. Primary ingredient is Quercetin (evidence grade B). It delivers 1000 mg, inside the studied range of 250–1000 mg. Read the rule → 7.2
Transparency (20%) Why 6.0 of 10. Earned points for all doses disclosed. Lost points for no public certificate of analysis and no independent third-party testing. Read the rule → 6.0
Value (10%) Why 9.9 of 10. One day at the trial dose costs about $0.13. That is one of the cheaper options in the catalog (20 of 313 by cost per effective day). Read the rule → 9.9
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 5.0 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 → 5.0
Community sentiment (5%) Why 6.6 of 10. No external reviews found, so community sentiment defaults to neutral. Community never counts as clinical evidence. Read the rule → 6.6
Composite How this 6.9 is built. 0.50 × 7.2 + 0.20 × 6.0 + 0.10 × 9.9 + 0.10 × 5.0 + 0.05 × 5.0 + 0.05 × 6.6 = 6.9 out of 10. Safety caps applied after. 6.9
6.9 composite
Dose vs. studies50%7.2
Transparency20%6.0
Value10%9.9
Formulation10%5.0
Safety5%5.0
Community5%6.6

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

6.9 / 10
Best for
Full trial dose, Budget-friendly
Avoid if
No public lab certificate
Full-dose status
Meets trial dose
Price/month
$8
COA status
Not public
Biggest caveat
Quercetin (1000.0mg is 200% of the 500mg trial dose) is well above the trial dose. More is not always better.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $26.97
Last price check: Sep 01, 2026
Add to compareVisit brand site →
Layer 2 · Context
In plain language

Why this scored this way

This BulkSupplements Quercetin Dihydrate Powder scores 6.9, making it a mid-tier product with both strengths and weaknesses. It delivers 1000mg of Quercetin, inside the studied range of 250–1000mg with grade B evidence (promising human data, not yet comprehensive). The quality transparency (6.0) is limited by the lack of third-party testing. At $0.13/day it's priced well for what you get.

What drives the score up

  • Dose-evidence score of 7.2 shows decent alignment with trial doses.
  • Value score of 9.9 at $0.13/day.
  • Quercetin is dosed at the full research level with grade B evidence (promising human data, not yet comprehensive).

What drags it down

  • Quercetin (1000.0mg is 200% of the 500mg trial dose) is well above the trial dose. More is not always better.
  • No third-party testing, which caps the quality transparency.
  • Quality transparency of 6.0 is below the site average.

Why you'd choose it

  • You want good value at $0.13/day.
  • You want Quercetin from a BulkSupplements product.
  • You want doses that align with published research.

Why you might skip it

  • You want third-party verified purity.
  • You want a product with a publicly available CoA.
  • You want a standard dose of quercetin (this product is well above it).
Question 1

Does the molecule work?

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

Quercetin

Best-studied 'senolytic' ingredient, though evidence is early.

4 landmark RCTs · US: Dietary supplement · EU: Food supplement (extract-dependent)
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
$0.13/day at trial dose
What one effective daily dose actually costs
Transparency
6.0/10 · No public lab certificate
No third-party testing disclosed
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.

No public lab certificate
Certificate of Analysis not published
Without a public lab certificate, batch purity and potency cannot be independently verified.
No third-party testing
Independent lab verification not disclosed
The brand does not publish evidence of independent batch testing.
Buyer complaints
Trustpilot: customer service concerns for some orders
Recurring themes from consumer review platforms.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Quercetin1000 mgEvidence B

Best-studied 'senolytic' ingredient, though evidence is early.

Read about Quercetin →
Layer 3 · Evidence vault

Product data & verification

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

The numbers

Price
$27
per bottle · 100 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$0.13
what one effective daily dose costs
$ / g active
$0.27
per gram of active substance
Independently checked

Data verification

COA status
Not public
Evidence grade
B
Per-ingredient breakdown
BQuercetin

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
1000 mg 200% of trial dose
500 mg
3.3 /5
Medium confidence
415 reviews across 2 platforms (2 sources)
Source diversity: 46%
AmazonTrustpilot
Praisegood value bulk quercetincommonly stacked with other antioxidants
Complaintscustomer service concerns for some orders
Last checked: 2026-08-20

Consumer signals

Consumer signals gathered from 2 platforms.

Medium confidence
Amazon

mixed sentiment

Praisegood value bulk quercetincommonly stacked with other antioxidants
Themes

BulkSupplements Quercetin Dihydrate is sold on Amazon as a bulk-value antioxidant supplement; exact review metrics were not directly accessible during research due to site restrictions.

Compiled from an Amazon listing located during research; verified at build time.

Trustpilot

415 reviews · 3.3/5 · mixed sentiment

Praiseproduct quality and puritycompetitive pricingwide selection
Complaintscustomer service concerns for some orders
Themes

BulkSupplements' Trustpilot profile (415 reviews on this page) shows most reviewers were somewhat happy, praising product quality and pricing while some report customer service issues.

Compiled from a Trustpilot listing located during research; verified at build time.

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

What others say (unverified)

No external reviews aggregated yet for this product.

Layer 3 · Evidence vault

Evidence, claims & regulation

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

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.

QuercetinHickson et al. 2019 (senolytics in humans)
QuercetinQuercetin + blood pressure 2016 meta-analysis
QuercetinQuercetin + blood pressure 2022 meta-analysis
QuercetinD+Q pilot trial 2025 (F1000Research)
Important to know
QuercetinPlain quercetin dihydrate has poor absorption. Phytosome forms deliver 10 to 20× more into blood.

Editorial notes

Plain quercetin dihydrate has notoriously poor oral bioavailability compared to phytosome forms (e.g. Quercefit); a high 1g dose partially compensates but absorption remains a known limitation the vendor page doesn't address.

Go deeper

Where this sits

Actives inside
Quercetin
Category
See all in Sirtuin activator →
Brand
BulkSupplements profile →
Add to compare Visit brand site →
Brand owners

Spot an error?

If you are the manufacturer or brand owner of Quercetin Dihydrate Powder 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 →
Same shelf

Similar products

All Sirtuin activator →

The next highest-scoring products in Sirtuin activator, same scoring method, same rules.

Sirtuin activator
Active per serving
Quercetin 500 mgTablet · 120 servings
Price per serving
$0.15$17.99 · 120 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.8/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.15
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com
DoNotAge
Pure Quercetin
Sirtuin activator
Active per serving
Quercetin 400 mgCapsule · 366 servings
Price per serving
$0.10$35.00 · 366 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.12
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with donotage.org
Sirtuin activator
Active per serving
Resveratrol 1,000 mgPowder · 500 servings
Price per serving
$1.24$617.83 · 500 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.2/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.62
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.prohealth.com
Same maker

Other products from BulkSupplements

Brand profile →
BulkSupplements
Magnesium Glycinate Powder
Mineral
Mineral per serving
Magnesium 310 mgElemental vs compound: check label
Price per serving
$0.44$19.97 · 45 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 8.2/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.43
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.bulksupplements.com
Mitochondrial
Active per serving
Alpha-Lipoic Acid 600 mgPowder · 166 servings
Price per serving
$0.13$21.97 · 166 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.8/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.13
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.bulksupplements.com
BulkSupplements
Glycine Powder
Amino acid
Active per serving
Glycine 3,000 mgPowder · 100 servings
Price per serving
$0.20$20.00 · 100 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.6/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.20
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.bulksupplements.com
NAD+ booster
Precursor per serving
NMN 500 mgPowder · 100 servings
Price per serving
$0.22$21.97 · 100 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.22
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.bulksupplements.com
Amino acid
Active per serving
NAC 600 mgPowder · 166 servings
Price per serving
$0.13$20.97 · 166 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.13
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.bulksupplements.com