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

Sulforaphane Supplement

Antioxidant · Capsule · 60 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
Sulforaphane 20 mg
Form
Capsule
List price (catalog, USD)
$19.95
Price per serving
$0.33List 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
60
Catalog monthly estimate
$9.97
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
Sulforaphane20 mg

What to check on the label

  • Whether the milligrams describe the whole extract or the standardised compound (for example '500 mg turmeric extract' versus '475 mg curcuminoids').
  • Delivery wording such as liposomal or phytosome changes the carrier, not the labelled amount.
  • For glutathione and sulforaphane, check whether the label lists the compound itself or a precursor (glucoraphanin, NAC).

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.

6.8/10
Overall score
#8 / 25 in Antioxidant

Public lab certificate, tested by independent lab, top 29% value.

Read the evidence (1 study)
Tier 4
Ingredient RCT (different dose)
The ingredient was tested in an RCT but at a different dose, or only in animals.
See the 1 supporting study
How we scored this product Show the full breakdown
Composite How this 6.8 is built. 0.50 × 5.4 + 0.20 × 9.0 + 0.10 × 9.4 + 0.10 × 5.0 + 0.05 × 8.5 + 0.05 × 8.3 = 6.8 out of 10. Safety caps applied after. 6.8
6.8 composite
Dose vs. studies50%5.4
Transparency20%9.0
Value10%9.4
Formulation10%5.0
Safety5%8.5
Community5%8.3

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

6.8 / 10
Best for
Full trial dose, Public lab certificate, Budget-friendly
Avoid if
No major red flags
Full-dose status
Meets trial dose
Price/month
$10
COA status
Public
Biggest caveat
Dose-evidence score of 5.4 is below average for the site.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $19.95
Last price check: Sep 01, 2026
Layer 2 · Context
In plain language

Why this scored this way

This Double Wood Supplements Sulforaphane Supplement scores 6.8, making it a mid-tier product with both strengths and weaknesses. It delivers 20mg of Sulforaphane, inside the studied range of 10–100mg with grade C evidence (mostly preclinical, limited human data). Transparency is a clear strength (score: 9.0), with third-party testing and a public lab certificate.

What drives the score up

  • Quality transparency of 9.0: tested by independent lab with a public lab certificate.
  • Community score of 8.3 with positive consumer feedback.

What drags it down

  • Dose-evidence score of 5.4 is below average for the site.

Why you'd choose it

  • You want good value at $0.50/day.
  • 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 antioxidant 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.

Sulforaphane

The most potent natural Nrf2 activator; requires myrosinase or true sprout extract to work.

1 landmark RCT · US: Dietary supplement · EU: Food supplement
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
$0.50/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
425 reviews across platforms · 4.6/5 · high confidence
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

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

Buyer complaints
Amazon: Effectiveness varies by individual; Amazon (Desertcart cross-listing): Some regional pricing markups
Recurring themes from consumer review platforms.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Sulforaphane20 mgEvidence C

The most potent natural Nrf2 activator; requires myrosinase or true sprout extract to work.

Read about Sulforaphane →
Layer 3 · Evidence vault

Product data & verification

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

The numbers

Price
$20
per bottle · 60 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$0.50
what one effective daily dose costs
$ / g active
$16.62
per gram of active substance
Independently checked

Data verification

COA status
Public
Evidence grade
C
Per-ingredient breakdown
CSulforaphane

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
Sulforaphane
The most potent natural Nrf2 activator; requires myrosinase or true sprout extract to work.
20 mg 67% of trial dose
30 mg
4.2 /5
High confidence
594 reviews across 3 platforms (4 sources)
Source diversity: 77%
AmazonRedditTrustpilot
PraiseGood quality and value for moneyEasy to swallow
ComplaintsEffectiveness varies by individualSome regional pricing markups
Last checked: 2026-08-20

Consumer signals

4.6 out of 5 across 425 verified reviews on 4 platforms.

High confidence

Consumer sentiment compiled from 3 public sources.

positive sentiment

PraiseGood quality and value for moneyEasy to swallow
ComplaintsEffectiveness varies by individual
Themes

Amazon reviewers of Double Wood's Sulforaphane cite good quality, value, and ease of swallowing as key positives.

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

425 reviews · 4.6/5 · positive sentiment

PraiseStrong review volumeConsistent potency
ComplaintsSome regional pricing markups
Themes

A cross-retailer listing shows Double Wood's Sulforaphane rated 4.6/5 from 425 reviews.

Compiled from Amazon (Desertcart cross-listing) listing located during research; verified at build time.

3 threads discussed · mixed sentiment

PraiseSome report improved mental clarity and focus
ComplaintsOne user calls it 'junk' with filler concernsBrand-wide reliability complaints
Themes

Reddit's r/Supplements has both positive personal reports (mental clarity, calmness) and broader skepticism about Double Wood's manufacturing quality.

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

169 reviews · 3.8/5

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
Sulforaphane'Broccoli extract' without myrosinase = minimal sulforaphane. Insist on 'active sulforaphane' or 'with myrosinase'.

Editorial notes

Derived from broccoli seed extract (not fresh broccoli sprout extract), pre-activated during processing rather than requiring myrosinase reaction in the gut. 20mg/day is a modest but plausible dose; frequently unavailable/backordered.

Brand owners

Spot an error?

If you are the manufacturer or brand owner of Sulforaphane Supplement 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 Antioxidant →

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

Antioxidant
Active per serving
Alpha-Lipoic Acid 1,000 mgCapsule · 30 servings
Price per serving
$0.83$24.97 · 30 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 8.0/10

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 www.toniiq.com
Double Wood Supplements
Antioxidant
Active per serving
Quercetin 1,000 mgCapsule · 30 servings
Price per serving
$0.83$24.95 · 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 7.6/10

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

100%
of trial dose
$0.42
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
Pure Encapsulations
Antioxidant
Active per serving
Alpha-Lipoic Acid 400 mgCapsule · 120 servings
Price per serving
$0.81$97.00 · 120 servings
Testing
None listed

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

Score & research context 7.4/10

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

100%
of trial dose
$1.21
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.pureencapsulationspro.com
Same maker

Other products from Double Wood Supplements

Brand profile →
Double Wood Supplements
Mitochondrial
Active per serving
Alpha-Lipoic Acid 600 mgCapsule · 30 servings
Price per serving
$0.66$19.95 · 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 8.5/10

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

100%
of trial dose
$0.66
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
NAD+ booster
Precursor per serving
NMN 250 mgCapsule · 60 servings
Price per serving
$0.82$48.95 · 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 7.9/10

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

100%
of trial dose
$1.63
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
Double Wood Supplements
NAD+ booster
Precursor per serving
NMN 1,000 mgPowder · 30 servings
Price per serving
$4.33$129.95 · 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.

400%
of trial dose
$2.17
per research-dose day, not label serving
400% · over 2× trial dose0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
Double Wood Supplements
Cognition
Active per serving
Bacopa Monnieri 450 mgCapsule · 90 servings
Price per serving
$0.20$17.95 · 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 7.7/10

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 doublewoodsupplements.com
Double Wood Supplements
Cognition
Active per serving
L-Theanine 200 mgCapsule · 120 servings
Price per serving
$0.17$19.95 · 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 7.7/10

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

100%
of trial dose
$0.17
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com