Capstone Peptides Discount Code: PROFPEPTIDE — Save 10%
Use code PROFPEPTIDE at Capstone Peptides to save 10% on your order. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.
Key facts
- Price comparison
- 15 of 21 comparable products cost less than the median for the same product and size across every vendor PP tracks — before the code
- Catalog
- 22 priced products, 22 in stock · Lyophilized powder, in single vials and multi-component vials
- Third-party testing
- Accumark Labs
- Certificates of analysis
- Every compound’s certificate published on the vendor’s COA page as a live record on the testing laboratory’s own system rather than a file the vendor hands over; the vendor states no count
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE
Compare Capstone Peptides’s prices: Retatrutide, Thymosin Alpha-1, TB-500, NAD+, Tesamorelin, Semaglutide, Semax, MOTS-C
Capstone Peptides (capstonepeptides.com) is a US-based research-compound supplier that ships domestically. Its catalog and per-vial prices are openly browsable without an account, and every compound it sells carries a batch certificate in a public Certificate of Analysis library. Compounds by research area:
- Metabolic & Weight Loss
- Semaglutide (GLP-1S), Tirzepatide (GLP-2T), Retatrutide (GLP-3R), Cagrilintide (in the C-Amylin / GLP-1S blend), MOTS-C
- Recovery & Tissue Repair
- BPC-157, TB-500, BPC-157 + TB-500 blend, GLOW
- Growth Hormone
- CJC-1295, Ipamorelin, Tesamorelin, Sermorelin
- Skin Health & Anti-Aging
- Melanotan 2
- Longevity & Immune
- Epithalon, NAD+, Thymosin Alpha-1
- Sexual Health
- PT-141
Capstone labels its GLP-class metabolic compounds with coded names that follow the GLP-1/2/3 tier convention: GLP-1S is Semaglutide, GLP-2T is Tirzepatide, and GLP-3R is Retatrutide; the C-Amylin / GLP-1S blend is Cagrilintide + Semaglutide. We list each under both its compound name and its code — “Semaglutide (GLP-1S)” — so a reader searching Capstone’s store for the coded name still lands on the right compound.
Every compound Capstone sells carries a batch certificate from Accumark Labs, published in a public COA library. Of the 25 compounds in the catalog, 24 link their certificate directly from the product page and the library; the Retatrutide 30 mg certificate (lot 1051, purity 99.52%) is verifiable by its AccuVerify code. Each certificate carries a QR code and a per-record code that resolve to Accumark Labs’ own verification page at accumarklabs.com/accuverify — the check runs against the laboratory, not against Capstone. The certificate we reviewed — a 30 mg Retatrutide lot — is a core-panel report covering identity (confirmed Retatrutide), purity (99.52% against a >98.0% specification), and quantity; it does not include endotoxin, heavy-metal, or sterility testing.
Three details from the certificate itself are worth noting. Net peptide content is measured rather than assumed — the 30 mg Retatrutide lot assays at 30.97 mg per vial. The report renders from the laboratory’s LIMS rather than as a PDF, with a result hash anchored at finalization, so there is no file to edit or swap. And verification resolves on the laboratory’s own domain rather than through a vendor-hosted QR code.
One point of context: Accumark Labs does not print a laboratory accreditation on its certificates, so no accreditation is claimed here — the strength of the record is the independent, externally verifiable check on the lab’s own domain, not a printed accreditation. Capstone is US-based and ships domestically. All products are sold for laboratory and research use only.
Capstone Peptides catalog & prices
Struck-through prices are Capstone Peptides' list price; the bold figure is your price once you apply code PROFPEPTIDE at checkout. Prices current as of September 10, 2026.
Frequently Asked Questions
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