
Tirzepatide 5mg
A synthetic dual agonist peptide of the GIP and GLP-1 receptors.
Observed price
Median $/mg
$22.0/mg
Range $/mg
$22.0/mg
This listing
#1 of 1
Real / active mg
$22.0/mg
The only sized listing we track for this compound so far. Real / active mg divides cost-per-mg by measured purity. Read from the certificate, not re-measured by VialGrade.
- Availability
- In stock
- Checked
- 1 hour ago
Hands you to nootropicsource.com — VialGrade doesn’t sell or take payment
Nootropic Source
Unclaimed page
0
Lab tests
—
Median purity
48
Listings
Real listing aggregated from the vendor's public page. Buying happens on their site, never on VialGrade — outbound links stay off until the affiliate step is approved.
No independent test of Nootropic Source's Tirzepatide yet
- Nootropic Source carries a certificate-integrity flag on record — treat its claims with extra caution.
- Tirzepatide generally tests around 99.8% purity across 29 independent certificates — but from other makers, so treat it as a benchmark, not proof of this seller's stock.
- We couldn't place this listing's price — its size isn't readable or the market's too thin — so there's no cheap-fake check here.
How to verify this yourself
To verify before you buy: ask Nootropic Source for the Janoshik COA for your batch number, then paste it into Verify — VialGrade confirms it's a real, unedited lab record.
Open the Verify toolUnderstand this compound
What is Tirzepatide?
FDA-approved moleculea.k.a. Mounjaro, ZepboundThe dual GIP/GLP-1 agonist behind Mounjaro and Zepbound, studied heavily in weight and metabolic research.
Good to know: GI adverse events are the most common trial finding, and the source/purity of non-prescription 'research' tirzepatide is unverified.
How does Tirzepatide work?
A dual GIP/GLP-1 receptor agonist; activates both incretin receptors to enhance glucose-dependent insulin secretion, suppress glucagon, slow gastric emptying, and reduce appetite.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is Tirzepatide researched for?
Studied for type-2 diabetes glycemic control and obesity/weight management, plus obstructive sleep apnea and other metabolic conditions.
- Weight & metabolicStudied in weight, appetite, blood-sugar, and fat-metabolism research.
How far has the research gone?
FDA-approved (for type-2 diabetes and obesity); approved as Mounjaro (2022) and Zepbound (2023), including a 2024 sleep apnea indication.
Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.
What should I check before buying?
- Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
- Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
- Vendor reputation. See how the vendor is talked about in the community before trusting a new name.
Research context only — VialGrade never gives dosing, medical, or human-use guidance.
The lab evidence
What we could verify
Each row answers a different question. Passing the identity test doesn’t mean it’s sterile or correctly dosed — we show each answer separately.
Identity — independent test
UnknownNo independent third-party COA is advertised or on record for this listing.
Measured purity (HPLC)
UnknownNo independent purity figure is on record for this listing.
Batch traceability
UnknownNo specific batch on this listing has been matched to an independent record.
Sterility & endotoxin
Not testedA purity COA does not measure sterility or endotoxins — no such test is on record.
Dose / fill accuracy
UnknownVialGrade does not independently measure vial fill or delivered dose.
These certificates are for Tirzepatide across every maker VialGrade tracks — not necessarily Nootropic Source’s own stock. This listing’s specific evidence is the matrix above.
Independent testing
Independent lab tests on record for Tirzepatide
Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.
How does this data get here?
Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.
Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.
We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.
What a certificate does & doesn’t prove
Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.
Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.
15
blind tests
100.0%
highest tested purity
| Certificate | Manufacturer | Batch | Purity | Content / dose | Lab | |
|---|---|---|---|---|---|---|
| www.optimumsourceresearch.com Blind | T-031026-01 | 99.89% | 24.54/20mg · | Janoshik Analytical Still listed | Verify | |
| www.ssrbio.com Blind | 2026 | 99.89% | 33.67/30mg · full | Janoshik Analytical Still listed | Verify | |
| https://www.rayshine-peptide.com/ Blind | RSP20260315 | 99.85% | 32.74/30mg · full | Janoshik Analytical Still listed | Verify | |
| liliPetide Technology Co., Ltd. Blind | — | 99.84% | 35.58/30mg · full | Janoshik Analytical Still listed | Verify | |
| http://www.sahepeptides.com/ Blind | — | 99.81% | 34.73/30mg · full | Janoshik Analytical Still listed | Verify | |
| https://www.htraresearch.cn Blind | — | 99.75% | 21.79/20mg · full | Janoshik Analytical Still listed | Verify | |
| www.uwa-biotech.com Blind | blue | 99.69% | 45.42/40mg · full | Janoshik Analytical Still listed | Verify | |
| Whatsapp:①+852-56419109 ②+44 7467 123605 Blind | June 12, 2026 | 99.69% | 31.96/30mg · full | Janoshik Analytical Still listed | Verify | |
| Kangpeptide Technology Co., Ltd Blind | — | 99.69% | 17.37/15mg · full | Janoshik Analytical Still listed | Verify | |
| www.jianxilab.com Blind | — | 99.67% | 10.31/10mg · full | Janoshik Analytical Still listed | Verify | |
| peptidesfactorycn.com Blind | 4 | 99.64% | 22.81/20mg · full | Janoshik Analytical Still listed | Verify | |
| www.certapeptides.com Blind | CP-2605-TR10 | 99.60% | 11.24/10mg · full | Janoshik Analytical Still listed | Verify | |
| https://www.hhmpeptide.com/ Blind | — | 99.51% | 22.53/20mg · full | Janoshik Analytical Still listed | Verify | |
| www.certapeptides.com Blind | CP-2604-TIR5 | 99.50% | 5.48/5mg · full | Janoshik Analytical Still listed | Verify | |
| hangzhoupeps.com Blind | — | 99.03% | 11.14/10mg · full | Janoshik Analytical Still listed | Verify | |
| https://zztai-tech.com/ | — | 99.97% | 31.4/30mg · full | Janoshik Analytical Still listed | Verify | |
| www.innopeptide.com | T60/2025-12-18-B | 99.95% | 60.24/60mg · full | Janoshik Analytical Still listed | Verify | |
| http://www.zlzpeptide.com/ | — | 99.93% | 134.16/120mg · full | Janoshik Analytical Still listed | Verify | |
| Aura | — | 99.90% | 67.18/60mg · full | Janoshik Analytical Still listed | Verify | |
| Peptide Pros | 2023-08-08 | 99.90% | — | MZ Biolabs | Verify |
No test for this vendor — but Tirzepatide is independently characterized
This vendor doesn't advertise independent testing, and we hold no COA tied to Nootropic Source specifically. We do hold 29 independent certificates for Tirzepatide (median 99.8% purity) from other makers — real market context for what this compound tests at, though not proof of this vendor's product.
- This vendor. No third-party COA on record for Nootropic Source.
- Tirzepatide (market-wide). 29 independent COAs, median 99.8%.
Cross-checks the vendor’s testing claim against independent lab records. Purity is read from the lab's certificate as issued — VialGrade doesn't re-run the assay or sample the vial. It reflects one lab's result for one submitted batch, not every vial. Never a statement that a product is safe, sterile, or correctly dosed.
This is a prescription drug in the US
This is the active drug in Mounjaro and Zepbound — an FDA-approved prescription medication. Buying a “research” version sidesteps the prescription requirement and the approved, quality-controlled supply chain. The FDA has warned about and acted against unapproved and compounded copies. Higher legal and safety exposure than an unapproved research peptide.
Read the full US legal overview →General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Same compound
See the full Tirzepatide market — all 2 vendors, price history & lab tests