Are Capstone Peptides' COAs real?

Accumark Labs holds all 26 certificates Capstone Peptides publishes, and the storefront links straight to the laboratory's own record.

How was Capstone Peptides checked?

Each certificate published on capstonepeptides.com was looked up at the issuing laboratory's own verification portal (Accumark Labs) using the identifiers printed on it, and the laboratory's record was compared with the published copy.

The register

Vendor recordOpened 2026-09-09Last checked 2026-09-14

Capstone Peptides

Verifiedcapstonepeptides.com

82Good

Composite score

Seven categories, weighted. Authenticity is scored first and is all or nothing, and 100% of the rubric was measurable on this storefront.

Reports published: 26
Reports resolved: 26
Laboratory reached: 1
Last checked: 2026-09-14

All 26 reports Capstone Peptides publishes were looked up at the issuing laboratory's own portal.

View the evidenceVisit vendor site

How the score is built82 / 100

Report authenticityi20 / 2026 of 26 reports confirmed by the issuing laboratory.

Testing coveragei9 / 1026 of the 29 products in this catalogue have a report, covering 26 of 29 sizes. This measures the catalogue, not the reports.

Report recencyi10 / 10The median report is 2 months old. 26 of 26 were issued within 3 months.

Measured purityi6 / 10Purity averages 99.36% across the 26 of 26 confirmed reports that state a purity figure, with the lowest at 98.20%. That is 6 of 10 points. 2 points for each 0.1% above 99.0%, reaching 10 at 99.5%. Anything at or under 99.0% scores nothing. Those 26 figures cover 90% of the 29 products listed.

Legal compliancei9 / 10The storefront carries a research-use gate, research-use labelling on all 9 product pages read, no human-use claims in its copy, a customer service address and a telephone number. It lacks copy free of mixing instructions. All 1 active ads in Meta's Ad Library stay inside research-use language.

Pricingi11 / 20Median price per milligram is 1.23x the market median, 23% above comparable vendors.

Storefronti18 / 20The vendor commits to dispatch in under 2 business days, with tracking, cold-chain handling and a reship guarantee. It publishes: "Orders ship within one business day of payment confirmation." The vendor publishes a contact route, its policies and batch numbers on 26 of 26 reports. 29 products listed. The storefront reaches a catalogue of 29 products, reachable policy pages and a reachable contact route. Page load is not timed.

Certificates with an identified independent laboratory and a verification route are checked with that laboratory. A report counts as authentic only when the laboratory holds it and the laboratory’s own copy names this vendor as the client. Laboratories that publish no public verifier are recorded Unverifiable, not Failed. A documented absence of an independent issuing laboratory and verification route fails the certificate checks; it does not establish fabrication or accreditation status.

Findings describe the certificates this vendor published on the dates listed. The weight each category carries, and what it measures, is set out once for every vendor.

A category marked not assessed could not be measured here, and it is left out of the total rather than counted as zero. A published record carries no unanswered line: where an automated check cannot settle one, the line is settled from what the storefront publishes. Every published vendor is audited again once a month.

Read the scoring method

Is Capstone Peptides legit?

Is Capstone Peptides legit?: 26 of 26 certificates Capstone Peptides published were confirmed at Accumark Labs, and the record scores 82 of 100. Checked 2026-09-14.
Are Capstone Peptides' COAs real?: Accumark Labs holds all 26 certificates Capstone Peptides publishes, and the storefront links straight to the laboratory's own record.
How was Capstone Peptides checked?: Each certificate published on capstonepeptides.com was looked up at the issuing laboratory's own verification portal (Accumark Labs) using the identifiers printed on it, and the laboratory's record was compared with the published copy.

01The finding

All 26 certificates Capstone Peptides published were confirmed at the issuing laboratory.

Sorted worst first

Every laboratory report this vendor publishes, with the outcome recorded for each.
#	Report	Laboratory	Issued to	Outcome
1	AODTask GDH8-X86G	Accumark Labs	Capstone Peptides	Authentic
2	BPC-157 / TB-500 10/10 mgTask ULG3-L85W	Accumark Labs	Capstone Peptides	Authentic
3	BPC-157 / TB-500 5/5 mgTask PY6S-BT83	Accumark Labs	Capstone Peptides	Authentic
4	BPC-157 10 mgTask F2CA-CQK8	Accumark Labs	Capstone Peptides	Authentic
5	BPC-157 5 mgTask YW3M-YKWE	Accumark Labs	Capstone Peptides	Authentic
6	CAG / CP-1S Blend 5/5 mgTask DMZA-BRJK	Accumark Labs	Capstone Peptides	Authentic
7	CJCTask 2LEE-5K6M	Accumark Labs	Capstone Peptides	Authentic
8	CP-1S 10 mgTask KL7K-SLPB	Accumark Labs	Capstone Peptides	Authentic
9	CP-1S 5 mgTask NK4Z-3E6A	Accumark Labs	Capstone Peptides	Authentic
10	CP-2T 10 mgTask JXXG-KY8J	Accumark Labs	Capstone Peptides	Authentic
11	CP-2T 30 mgTask DTNT-RFQ8	Accumark Labs	Capstone Peptides	Authentic
12	CP-3R 10 mgTask G8CR-NKMA	Accumark Labs	Capstone Peptides	Authentic
13	CP-3R 30 mgTask 98B4-MA8U	Accumark Labs	Capstone Peptides	Authentic
14	CP-TESA 10 mgTask NN62-EHRL	Accumark Labs	Capstone Peptides	Authentic
15	Epithalon 10 mgTask SQJ5-WLQB	Accumark Labs	Capstone Peptides	Authentic
16	GLOW 70 mgTask W34E-HRDM	Accumark Labs	Capstone Peptides	Authentic
17	Ipamorelin 5 mgTask TCSC-244W	Accumark Labs	Capstone Peptides	Authentic
18	Melanotan 2 10 mgTask GBDB-JZ5M	Accumark Labs	Capstone Peptides	Authentic
19	MOTS-C 10 mgTask KXKF-MDQY	Accumark Labs	Capstone Peptides	Authentic
20	NAD+ 500 mgTask FD96-B4QF	Accumark Labs	Capstone Peptides	Authentic
21	PT-141 10 mgTask 4H3F-XW4R	Accumark Labs	Capstone Peptides	Authentic
22	Selank 5 mgTask 269J-8JYX	Accumark Labs	Capstone Peptides	Authentic
23	Semax 30 mgTask DQW9-VL2X	Accumark Labs	Capstone Peptides	Authentic
24	Sermorelin 5 mgTask 5P43-A45M	Accumark Labs	Capstone Peptides	Authentic
25	TB-500 10 mgTask D9EC-DVXN	Accumark Labs	Capstone Peptides	Authentic
26	Thymosin Alpha-1 10 mgTask F4KN-HSZR	Accumark Labs	Capstone Peptides	Authentic

AODAuthentic
Accumark LabsTask GDH8-X86G2026-09-14
Issued to Capstone Peptides
BPC-157 / TB-500 10/10 mgAuthentic
Accumark LabsTask ULG3-L85W2026-09-14
Issued to Capstone Peptides
BPC-157 / TB-500 5/5 mgAuthentic
Accumark LabsTask PY6S-BT832026-09-14
Issued to Capstone Peptides
BPC-157 10 mgAuthentic
Accumark LabsTask F2CA-CQK82026-09-14
Issued to Capstone Peptides
BPC-157 5 mgAuthentic
Accumark LabsTask YW3M-YKWE2026-09-14
Issued to Capstone Peptides
CAG / CP-1S Blend 5/5 mgAuthentic
Accumark LabsTask DMZA-BRJK2026-09-14
Issued to Capstone Peptides
CJCAuthentic
Accumark LabsTask 2LEE-5K6M2026-09-14
Issued to Capstone Peptides
CP-1S 10 mgAuthentic
Accumark LabsTask KL7K-SLPB2026-09-14
Issued to Capstone Peptides
CP-1S 5 mgAuthentic
Accumark LabsTask NK4Z-3E6A2026-09-14
Issued to Capstone Peptides
CP-2T 10 mgAuthentic
Accumark LabsTask JXXG-KY8J2026-09-14
Issued to Capstone Peptides
CP-2T 30 mgAuthentic
Accumark LabsTask DTNT-RFQ82026-09-14
Issued to Capstone Peptides
CP-3R 10 mgAuthentic
Accumark LabsTask G8CR-NKMA2026-09-14
Issued to Capstone Peptides
CP-3R 30 mgAuthentic
Accumark LabsTask 98B4-MA8U2026-09-14
Issued to Capstone Peptides
CP-TESA 10 mgAuthentic
Accumark LabsTask NN62-EHRL2026-09-14
Issued to Capstone Peptides
Epithalon 10 mgAuthentic
Accumark LabsTask SQJ5-WLQB2026-09-14
Issued to Capstone Peptides
GLOW 70 mgAuthentic
Accumark LabsTask W34E-HRDM2026-09-14
Issued to Capstone Peptides
Ipamorelin 5 mgAuthentic
Accumark LabsTask TCSC-244W2026-09-14
Issued to Capstone Peptides
Melanotan 2 10 mgAuthentic
Accumark LabsTask GBDB-JZ5M2026-09-14
Issued to Capstone Peptides
MOTS-C 10 mgAuthentic
Accumark LabsTask KXKF-MDQY2026-09-14
Issued to Capstone Peptides
NAD+ 500 mgAuthentic
Accumark LabsTask FD96-B4QF2026-09-14
Issued to Capstone Peptides
PT-141 10 mgAuthentic
Accumark LabsTask 4H3F-XW4R2026-09-14
Issued to Capstone Peptides
Selank 5 mgAuthentic
Accumark LabsTask 269J-8JYX2026-09-14
Issued to Capstone Peptides
Semax 30 mgAuthentic
Accumark LabsTask DQW9-VL2X2026-09-14
Issued to Capstone Peptides
Sermorelin 5 mgAuthentic
Accumark LabsTask 5P43-A45M2026-09-14
Issued to Capstone Peptides
TB-500 10 mgAuthentic
Accumark LabsTask D9EC-DVXN2026-09-14
Issued to Capstone Peptides
Thymosin Alpha-1 10 mgAuthentic
Accumark LabsTask F4KN-HSZR2026-09-14
Issued to Capstone Peptides

Testing coverage

What this vendor publishes results for

Not running a test is different from publishing one the laboratory does not hold. Both are recorded, neither is treated as the other.

Purity (HPLC)Published for 26 of 26 reports (100%)Tested

IdentityPublished for 26 of 26 reports (100%)Tested

Net peptide contentPublished for 26 of 26 reports (100%)Tested

Bacterial endotoxinNot recordedNot recorded

SterilityNot recordedNot recorded

Heavy metalsNot recordedNot recorded

02Right of reply

Company response

Capstone Peptides has not written to us about this record. It can at any time, and anything it sends is published here in full.

No reply on file

Findings are published as soon as they are complete, because everything in them was read from this company's own storefront and from the laboratory that issued the reports. Nothing here waits on a reply, and a reply that arrives later is published in full beside the finding it answers.

A company can answer this record through the response form at any time; the reply is published here in full. Corrections policy

03Corrections

Request a correction

Send the task number, the field and the evidence. Every correction is logged and the record is republished with the change stated.

Open the correction form Request another audit

Findings describe published certificates on the dates listed, and nothing about the products themselves. See the corrections log.