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Vendors → Capstone Peptides (Capstone Holdings LLC)

Capstone Peptides — background check

If you searched "is Capstone Peptides legit," this is the page. We don't issue verdicts. We pull the public record — who the company says it is, the domain, the lab, the listings — and write down what is on file and what isn't. This check is new and most rows still say nothing on file. That is a result, not a verdict, and this page will change as rows fill in.

Disclosure first. We are a Capstone Peptides affiliate. We may earn a commission on orders placed through our links to Capstone, at no extra cost to you. We run the same checklist on every vendor, including this one, and we publish what we find — including gaps. Judge the page by whether it does that. Full disclosure →
Business record
Operator named as Capstone Holdings LLC in its own partner-program terms (v1.1, 10 Sep 2026). State of registration not yet read at a state portal. Nothing on file until it is.
Lab reports
0 checked. The site has a lab-testing page, but every page sits behind a site-entry attestation we did not pass. Lab name and lookup method: not yet on file.
Domain
capstonepeptides.com registered 19 May 2026 (registrar: Cloudflare). Read at the .com registry 28 Sep 2026. A four-month-old domain is a fact to know, not a finding.
Vendor response
Nothing sent yet — there are no findings to send. When there are, the vendor gets them first and their reply appears here verbatim.

Who they say they are

From documents the vendor publishes without a login, read 28 Sep 2026. Stated, not verified by us unless marked.

Legal nameCapstone Holdings LLC — as named in the Referral Partner Program Terms, v1.1, effective 10 Sep 2026
AddressNothing on file — the contact and about pages sit behind the site-entry gate
Governing lawCommonwealth of Virginia; disputes in Fairfax County, VA — from the partner terms
Origin claimNothing on file — no "made in" statement read yet
Intended-use statementSite-entry gate, quoted: "All materials are for laboratory research use only — not for human use, therapeutic use, or consumer purchase." Entry requires confirming you are 21+ and acting for a research purpose.
Testing labNothing on file — the lab-testing page exists (/lab-testing-coas/) but was not read
Affiliate rulesPublic partner terms forbid affiliates from making human-use, dosing, or health claims, from posting in peptide communities, and from running paid ads. That is a documentation point in the vendor's favor: it is the same rule we hold ourselves to.

Not to be confused with

"Capstone" is a common business name. Check the legal entity, not the word.

New Capstone, Inc.Kihei, Hawaii. Received an FDA close-out letter dated 7 Sep 2017. No connection to Capstone Peptides appears in the record we read; listed here only because a name search returns it.
Peptide Restore, LLCA different vendor (Utah) that also appears on this site. Separate company, separate check: Peptide Restore background check →

What we did not check yet

  • State business registry entry for Capstone Holdings LLC.
  • Any certificate of analysis, and whether the named lab's public lookup returns it.
  • Whether listing purity claims match the lab numbers, lot by lot.
  • Shipping, refund, and returns terms.

Each of these becomes a row above when it is done. Want one done first? Send the product link below.

What the public catalog lists

Read from the site's public sitemap on 28 Sep 2026 — product names only, exactly as the store names them. Prices and lot documents were not read (gated). This is an inventory of what exists, not a recommendation of anything.

Store nameSizes listedLot documentation on file
BPC-1575 mg · 10 mgNothing on file
TB-50010 mgNothing on file
BPC-157 / TB-500 Blend5/5 mg · 10/10 mgNothing on file
GLOW70 mgNothing on file — composition not read
NAD+500 mgNothing on file
CJC-1295 / Ipamorelin Blend5/5 mgNothing on file
Ipamorelin5 mgNothing on file
Sermorelin5 mgNothing on file
CP-1S · CP-2T · CP-3R5–30 mgCoded names. The store URL does not state the compound, so neither do we.
The catalog also lists several materials this site does not cover, and lab supplies. Compound background (what has been studied, in whom, regulator status) lives on the compound pages: Peptide 101 →

Questions people actually search

Is Capstone Peptides legit?We don't answer that with a yes or no. What is on file: a public partner program naming Capstone Holdings LLC, a site-entry gate that states research use only, a domain registered May 2026, and no FDA warning letter under that name as of 28 Sep 2026. What is not on file yet: a state registry entry, a lab name, and any certificate matched at the lab. Those are the rows that matter, and they are empty.
Does Capstone Peptides publish lab reports?The site has a lab-testing page. We have not read it, so we can't say what it contains or whether certificates can be looked up at the lab. Send a product link and we will check one.
Who runs Capstone Peptides?The partner-program terms name Capstone Holdings LLC and choose Virginia law. We have not yet matched that to a state registry record.
How old is capstonepeptides.com?Registered 19 May 2026 at Cloudflare, per the .com registry on 28 Sep 2026. Young domains are common in this market; it is a reason to check paperwork, not a conclusion.
Does this site earn money from Capstone?Yes. We are a Capstone Peptides affiliate. We may earn a commission on orders placed through our links to Capstone, at no extra cost to you. That is why the check is public, dated, and applied the same way to every vendor.

Sources

Only documents we read. Dated. If a row is missing, we haven't read it.

SourceTypeRead
Referral Partner Program Terms v1.1vendor-doc28 Sep 2026
Commission Schedulevendor-doc28 Sep 2026
.com registry RDAP record for capstonepeptides.comregulator / registry28 Sep 2026
capstonepeptides.com site-entry page and public sitemapvendor-doc28 Sep 2026
FDA Warning Letters database — search for "Capstone Peptides": no matchregulator28 Sep 2026
FDA close-out letter, New Capstone, Inc. (unrelated)regulator28 Sep 2026

Documentation checklist for this vendor

Before you trust a vial from any vendor: the six documents. Lots we have already verified for other vendors are in the public check log.

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Paste a Capstone product link or a lot number. We pull the lab report, look it up at the lab, and reply personally within 48 hours with the three lights. Research use only.

You don't need to understand chemistry to check paperwork.
Research use only. Not for human consumption. Products referenced on this site are sold by the vendor as research chemicals. Nothing here is medical advice, a recommendation to use any compound, or a substitute for a licensed professional.
Affiliate disclosure. We are an affiliate of two vendors: Peptide Restore, LLC (Utah) and Capstone Peptides (Capstone Holdings LLC). We may earn a commission on orders placed through our links to them, at no extra cost to you. We do not sell, ship, or handle any product, and the same documentation standard applies to every vendor we link to.
Vendors: Peptide Restore, LLC (Utah) — not affiliated with Restore Peptides (New Mexico) · Capstone Peptides (Capstone Holdings LLC). Vendor statements about origin are not independently verified. · COA lab on file: Freedom Diagnostics · Editor: Chas Dearie · Last reviewed: 30 Sep 2026