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

Quercetin Tablets | 95% Anhydrous

Sirtuin activator · Tablet · 120 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 500 mg
Form
Tablet
List price (catalog, USD)
$17.99
Price per serving
$0.15List 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
120
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
Quercetin500 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.

7.8/10
Overall score
#1 / 17 in Sirtuin activator

Public lab certificate, tested by independent lab, top 9% value.

Read the evidence (3 studies)
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
Composite How this 7.8 is built. 0.50 × 7.2 + 0.20 × 9.0 + 0.10 × 9.9 + 0.10 × 5.0 + 0.05 × 8.5 + 0.05 × 9.4 = 7.8 out of 10. Safety caps applied after. 7.8
7.8 composite
Dose vs. studies50%7.2
Transparency20%9.0
Value10%9.9
Formulation10%5.0
Safety5%8.5
Community5%9.4

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

7.8 / 10
Best for
Full trial dose, Public lab certificate
Avoid if
No major red flags
Full-dose status
Meets trial dose
Price/month
$0
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: $17.99
Last price check: Sep 01, 2026
Layer 2 · Context
In plain language

Why this scored this way

This Nootropics Depot Quercetin Tablets | 95% Anhydrous scores 7.8, making it a strong scorer. It delivers 500mg of Quercetin, inside the studied range of 250–1000mg with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.0), with third-party testing and a public lab certificate. At $0.15/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.
  • Quality transparency of 9.0: tested by independent lab with a public lab certificate.
  • Value score of 9.9 at $0.15/day.
  • Community score of 9.4 with positive consumer feedback.
  • Quercetin is dosed at the full research level with grade B evidence (promising human data, not yet comprehensive).

What drags it down

  • No significant weaknesses identified in the current scoring framework.

Why you'd choose it

  • You want good value at $0.15/day.
  • You want Quercetin from a Nootropics Depot 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 sirtuin activator 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.

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
$0.15/day at trial dose
What one effective daily dose actually costs
Transparency
9.0/10 · 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.

No major red flags
Public lab certificate, tested by independent lab, dose within range
No safety, transparency, or dose concerns detected at this time.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Quercetin500 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
$18
per bottle · 120 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$0.15
what one effective daily dose costs
$ / g active
$0.30
per gram of active substance
Independently checked

Data verification

COA status
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
500 mg 100% of trial dose
500 mg
4.7 /5
Low confidence Strong value signal
2,420 reviews across 1 platforms (1 sources)
Source diversity: 23%
Trustpilot
PraiseHigh product quality and purityDetailed third-party testing and transparency
Last checked: 2026-08-20

Consumer signals

Consumer signals gathered from 1 platform.

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

Medium confidence

2,420 reviews · 4.7/5 · positive sentiment

PraiseHigh product quality and purityDetailed third-party testing and transparency
Themes

Nootropics Depot's strong brand-wide 4.7/5 Trustpilot rating from 2,420 reviews reflects consistent quality/testing praise applicable to its Quercetin 95% tablets, though product-specific review counts were not separately available.

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.

Important to know
QuercetinPlain quercetin dihydrate has poor absorption. Phytosome forms deliver 10 to 20× more into blood.

Editorial notes

Plain, non-phytosome quercetin at a high 500mg/tablet dose (per NIH DSLD); category price range $19.99-$79.99 across sizes. Live vendor page fetch failed repeatedly in this pass, so per-unit price for a specific size is unconfirmed, treat as a placeholder pending direct re-verification.

Brand owners

Spot an error?

If you are the manufacturer or brand owner of Quercetin Tablets | 95% Anhydrous 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.

DoNotAge
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
BulkSupplements
Sirtuin activator
Active per serving
Quercetin 1,000 mgPowder · 100 servings
Price per serving
$0.27$26.97 · 100 servings
Testing
None listed

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

Score & research context 6.9/10

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
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 Nootropics Depot

Brand profile →
NAD+ booster
Precursor per serving
NMN 250 mgCapsule · 90 servings
Price per serving
$0.56$49.99 · 90 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 8.1/10

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

100%
of trial dose
$1.11
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com
NAD+ booster
Precursor per serving
NR 300 mgCapsule · 30 servings
Price per serving
$1.17$34.99 · 30 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 8.0/10

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

100%
of trial dose
$1.17
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com
Cognition
Active per serving
Bacopa Monnieri 300 mgCapsule · 120 servings
Price per serving
$0.25$29.99 · 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
$0.25
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com
Nootropics Depot
Cognition
Active per serving
Citicoline 250 mgCapsule · 60 servings
Price per serving
$0.50$29.99 · 60 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 7.7/10

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

100%
of trial dose
$0.50
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com
Nootropics Depot
Cognition
Active per serving
L-Theanine 200 mgCapsule · 30 servings
Price per serving
$0.53$15.99 · 30 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 7.7/10

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

100%
of trial dose
$0.53
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com