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Stack Research

stack-research.com
PepAssess Evidence Score 80 for Stack Research

Evidence Score 80/100 (Strong evidence) · we could read 100% of the site · updated November 12, 2026

Lab reports indexed: 30 · Lab-validated: 27 (matched to the issuing lab's own public record)

As of November 12, 2026, Stack Research publishes a lab-results page, names Accumark Labs and accepts card payments.

Visit store ↗Stack Research coupon code
20% off
Use code PEPASSESS at checkout on stack-research.com

Popular peptides at Stack Research

Prices with code PEPASSESS (20% off) already taken off.

RetatrutideLab-confirmed
$95.92 $119.90
$6.66/mg $8.33/mg
Lab reports ›Shop ↗
TirzepatideLab-confirmed
$87.92 $109.90
$5.86/mg $7.33/mg
Lab reports ›Shop ↗
SemaglutideLab-confirmed
$55.92 $69.90
$9.59/mg $11.99/mg
Lab reports ›Shop ↗
BPC-157Lab-confirmed
$39.92 $49.90
$7.19/mg $8.99/mg
Lab reports ›Shop ↗
KLOW Peptide BlendLab-confirmed
—
Lab reports ›Shop ↗
GLOW Peptide BlendLab-confirmed
—
Lab reports ›Shop ↗

Also popular here: Wolverine (BPC-157 + TB-500) $79.92 $99.90 · GHK-Cu $51.92 $64.90 · NAD+ $135.92 $169.90 · Sermorelin $43.92 $54.90 · Tesamorelin $79.92 $99.90

See all 21 peptides at Stack Research ▾

Stack Research review: what PepAssess found

As of November 12, 2026, Stack Research has a PepAssess Evidence Score of 80/100 (strong evidence). It publishes 30 lab reports; 27 are confirmed in the issuing labs' own records (Accumark Labs), and the newest report is dated August 13, 2026. It publishes its company name (Stack Research LLC), but no street address. It takes card payments, which let you dispute a charge. Discount code PEPASSESS gives 20% off.

People are talking about this

1 person on X talked about Stack Research this week See on X ↗

Sourcing · 1

Links go to X. PepAssess doesn't check what's said there. Counts are unique people, not posts — a pointer to the discussion, never part of the score.

What the Evidence Score means

It adds up points for what we could verify about Stack Research: lab reports we matched to the issuing lab's own public record (the biggest part), how often it tests, what the reports cover, contact details, policies, card payments and how long the site has existed. Each card below shows exactly which checks it passed. A higher score means more you can verify yourself; it is not a safety rating, and ads or affiliate deals never change it.

Lab transparency (reports validated with the lab)

40/40
  • ✓ 1 lab report validated with the issuing lab's own public record+10
  • ✓ 2 validated lab reports+5
  • ✓ 4+ validated lab reports (2+ for a website under a year old)+5
  • ✓ Endotoxin tested: 1 lab-validated endotoxin report (5)+5
  • ✓ Validation experience: 5+ validated reports (website under a year old)+5
  • ✓ Validation experience: 10+ validated reports+10

Testing frequency

12/19
  • ✓ Newest lab report within the last 12 months+2
  • ✓ Newest lab report within the last 6 months+3
  • ✓ Newest lab report within the last 90 days+3
  • ✓ New lab reports in 3+ different months of the last year+4
  • – New lab reports in 5+ different months of the last year0

Report details

5/5
  • ✓ Reports carry lot / batch numbers+1
  • ✓ Most reports carry lot / batch numbers+1
  • ✓ Identity (mass spec) and purity (HPLC) tested+2
  • ✓ Sterility and endotoxin tested+1

Business transparency

13/16
  • ✓ Published business address+7
  • ✓ Contact email published+2
  • – Phone number published0
  • ✓ Refund / return policy page+2
  • ✓ Shipping policy page+2

Buyer protection

10/10
  • ✓ Card payments (chargeback recourse)+8
  • ✓ Research-use labeling present+2

Track record

0/10
  • – Website registered 6+ months ago0
  • – Website registered 1+ year ago0

Quick facts

Lab-results page
stack-research.com/coa/
Testing labs (on its lab reports and site)
Accumark Labs
Research-use labeling
Present
Payment methods
crypto, card
Store platform
WooCommerce
Products listed
22
Company
Stack Research LLC
Address
30 N Gould St Ste R, Sheridan, WY 82801-6317 (registered agent)
Email
support@stack-research.com
Phone
Not published
Contact page
stack-research.com/contact/
Refund policy
stack-research.com/refund-policy/
Shipping policy
stack-research.com/shipping-policy/
Website registered
July 22, 2026
Also listed by other directories
0 (not scored)

Lab-validated reports (27)

Each report below was matched to the issuing lab's own public record. “Lab's copy” opens it on the lab's site; “Vendor's copy” is the file on Stack Research's site. Copies of the same report count once.

All 27 lab-validated reports →

Affiliate & discount information

This vendor runs an affiliate program (stack-research.com/affiliates/). Affiliate status is shown for transparency and is never part of the score.

Stack Research: questions people ask

Is Stack Research legit?

PepAssess doesn't vouch for any seller; it shows what each one documents. As of November 12, 2026, Stack Research (stack-research.com) has: Evidence Score 80/100, 27 lab reports confirmed by the issuing labs' own records, company: Stack Research LLC, a registered agent's address in Sheridan, WY, website registered July 22, 2026 and no FDA warning letter found. Stack Research's full PepAssess profile

What do reviews say about Stack Research?

PepAssess's review of Stack Research is built from what it checked, not from opinions. As of November 12, 2026, Stack Research has a PepAssess Evidence Score of 80/100 (strong evidence). It publishes 30 lab reports; 27 are confirmed in the issuing labs' own records (Accumark Labs), and the newest report is dated August 13, 2026. It publishes its company name (Stack Research LLC), but no street address. It takes card payments, which let you dispute a charge. Discount code PEPASSESS gives 20% off. PepAssess hasn't linked customer reviews for Stack Research yet. Stack Research review on PepAssess

Does Stack Research test its peptides?

Yes. Stack Research publishes 30 lab reports from Accumark Labs, and PepAssess matched 27 of them to the issuing lab's own public records (as of November 12, 2026). The newest report PepAssess read is dated August 13, 2026. See the lab-confirmed reports

Which labs test Stack Research's peptides?

Accumark Labs, as named on Stack Research's lab reports and website (as of November 12, 2026).

Does Stack Research have a coupon code?

Yes: PEPASSESS (20% off), entered at checkout on stack-research.com.

Where is Stack Research located?

Stack Research is run by Stack Research LLC. The address it publishes is 30 N Gould St Ste R, Sheridan, WY 82801-6317 (a registered agent's address, not necessarily where the business operates). Source: stack-research.com, checked November 12, 2026.

How do I contact Stack Research?

Email: support@stack-research.com. As published on stack-research.com (checked November 12, 2026).

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PepAssess Evidence Score for Stack Research

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Sources

Collected by PepAssess directly from stack-research.com on October 2, 2026 (homepage and linked contact, policy, lab-results and affiliate pages). Something wrong? Email hello@pepassess.com with the correction.