No independent test of Peptide Pros' MK-677 yet
- MK-677 generally tests around 99.9% purity across 2 independent certificates — but from other makers, so treat it as a benchmark, not proof of this seller's stock.
- Price sits within the normal range for MK-677 — no cheap-fake red flag.
How to verify this yourself
To verify before you buy: ask Peptide Pros 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 toolMK-677 25mg/ml @ 30ml 25mg
An orally active non-peptide ghrelin mimetic and agonist of the growth hormone secretagogue receptor.
Observed price
Median $/mg
$0.09/mg
Range $/mg
$0.0052/mg–$19.9/mg
This listing
#14 of 21
mid-market
Real / active mg
$0.11/mg
Compared by cost-per-mg against 21 sized listings of this compound. Real / active mg divides cost-per-mg by measured purity. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Purity vs grade
- Availability
- In stock
- Checked
- 10 hours ago
Hands you to peptidepros.net — VialGrade doesn’t sell or take payment
Some vendor links may earn VialGrade a commission. It never changes a grade, a price, or where a listing ranks.
Peptide Pros
Unclaimed page
3
Lab tests
99.9%
Median purity
34
Listings
Real listing aggregated from the vendor's public page. Buying happens on their site, never on VialGrade — we take no payment and hold no stock. These are sold for laboratory research use only, not for human consumption; the seller sets their own terms and age limits at checkout.
No independent test of Peptide Pros' MK-677 yet
- MK-677 generally tests around 99.9% purity across 2 independent certificates — but from other makers, so treat it as a benchmark, not proof of this seller's stock.
- Price sits within the normal range for MK-677 — no cheap-fake red flag.
How to verify this yourself
To verify before you buy: ask Peptide Pros 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 toolCompare by real cost
Every MK-677 listing, cheapest per mg first
Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 40 are here: the last 19 are listings whose vendor never published a strength we can read, so they have no per-mg figure to sort on.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Purerawz | 27.25g total50ml/545mg per ml/27.25g each | $143 | $0.0052/mg · too cheap? | — | $0.0052/mgbest value | View |
| 2 | Behemoth LabzUnavailable | 9.3g total60ct/155mg per capsule/9.3g each | $98 | $0.01/mg · too cheap? | — | $0.01/mg | View |
| 3 | Behemoth LabzUnavailable | 4.65g total30ct/155mg per capsule / 4.6g each | $51 | $0.01/mg · too cheap? | — | $0.01/mg | View |
| 4 | Nootropic SourceUnavailable | 10g total10 Grams each | $300 | $0.03/mg · too cheap? | — | $0.03/mg | View |
| 5 | Nootropic Source | 5g total5 Grams each | $200 | $0.04/mg · too cheap? | — | $0.04/mg | View |
| 6 | Sports Technology Labs | 2g total2Grams each | $98 | $0.05/mg | 99.9% | $0.05/mg | View |
| 7 | Chemyo | 1g total1g each | $60 | $0.06/mg | 100.0% | $0.06/mg | View |
| 8 | Chemyo | 1.25g total25mg each | $80 | $0.06/mg | 100.0% | $0.06/mg | View |
| 9 | Umbrella Labs | 1g total | $71 | $0.07/mg | — | $0.07/mg | View |
| 10 | PurerawzUnavailable | 1.8g totalTablets · 90mg per tablet/20ct/1.8g each | $130 | $0.07/mg | — | $0.07/mg | View |
| 11 | Nootropic Source | 750mg total25mg each | $70 | $0.09/mg | — | $0.09/mg | View |
| 12 | Umbrella Labs | 750mg total25MG each | $71 | $0.09/mg | — | $0.09/mg | View |
| 13 | Umbrella Labs | 750mg total12.5MG each | $71 | $0.09/mg | — | $0.09/mg | View |
| 14 | Peptide Pros | 750mg total25mg each | $79 | $0.11/mg | — | $0.11/mg | View |
| 15 | PurerawzUnavailable | 1.5g totalTablets · 75mg per tablet/20ct/1.5g each | $162 | $0.11/mg | — | $0.11/mg | View |
| 16 | Swiss Chems | 600mg total10mg each | $70 | $0.12/mg | — | $0.12/mg | View |
| 17 | PurerawzUnavailable | 1g total10ml/100mg per ml/1g each | $142 | $0.14/mg | — | $0.14/mg | View |
| 18 | PurerawzUnavailable | 1g totalLGD-4033 1g Liquid + Rad-140 Testolone 1g Liquid + MK-677 1g each | $256 | $0.26/mg | — | $0.26/mg | View |
| 19 | Modern Aminos | 25mg total | $89 | $3.56/mg | — | $3.56/mg | View |
| 20 | Simple PeptideUnavailable | 10mg total | $199 | $19.9/mg | — | $19.9/mg | View |
| 21 | Simple Peptide | 12.5mg total | $249 | $19.9/mg | — | $19.9/mg | View |
| Listed, but not rankable — no published strength to price per mg | |||||||
| — | Behemoth LabzUnavailable | 1 vial | $33 | no size published | — | — | View |
| — | Nootropic Source | 1 vial | $50 | no size published | — | — | View |
| — | Behemoth LabzUnavailable | 20mg/30ct/600mg | $66 | no size published | — | — | View |
| — | Sports Technology Labs | 1 vial | $67 | no size published | 99.9% | — | View |
| — | Sports Technology Labs | 25mg | $68 | no size published | 99.9% | — | View |
| — | Modern Aminos | 1 vial | $68 | no size published | — | — | View |
| — | PurerawzUnavailable | 1 vial | $79 | no size published | — | — | View |
| — | Ascend Bio LabsUnavailable | 1 Bottle | $80 | no size published | — | — | View |
| — | Simple Peptide | 1 vial | $85 | no size published | — | — | View |
| — | PurerawzUnavailable | Tablets · 20mg/27ct/540mg | $88 | no size published | — | — | View |
| — | PurerawzUnavailable | Capsules · 20mg/60ct/1200mg | $95 | no size published | — | — | View |
| — | Behemoth LabzUnavailable | Capsules · 30mg/30ct/900mg | $103 | no size published | — | — | View |
| — | PurerawzUnavailable | 20mg/60ct/1200mg | $106 | no size published | — | — | View |
| — | PurerawzUnavailable | Tablets · 20mg/54ct/1080mg | $121 | no size published | — | — | View |
| — | Chemyo | 1 vial | $140 | no size published | 100.0% | — | View |
| — | Ascend Bio LabsUnavailable | 2 Bottles | $144 | no size published | — | — | View |
| — | Ascend Bio LabsUnavailable | 3 Bottles | $204 | no size published | — | — | View |
| — | Swiss Chems | 1 vial | $218 | no size published | — | — | View |
| — | Ascend Bio LabsUnavailable | 10 Bottles | $640 | no size published | — | — | View |
Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.
Understand this compound
What is MK-677?
In clinical trialsa.k.a. IbutamorenA pill — not an injection — that mimics the hunger hormone to raise growth hormone and IGF-1. Big-pharma trials found raised blood sugar and no strength benefit, so it was shelved and never approved.
Good to know: Trials found increased fasting glucose and, in one elderly trial, more congestive heart failure events, without a functional strength benefit; it is not FDA-approved for any use.
How does MK-677 work?
The science
An orally active, non-peptide ghrelin receptor (GHSR-1a) agonist; increases GH and IGF-1 secretion and stimulates hypothalamic appetite pathways.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is MK-677 researched for?
Studied for GH/IGF-1 restoration in aging and muscle-wasting (cachexia) research, sleep quality, and body composition.
- Growth hormone supportStudied for how it interacts with the body's own growth-hormone axis in research settings.
- Muscle & performanceStudied in muscle-growth, repair, and physical-performance research.
How far has the research gone?
In clinical trials, discontinued; Merck-sponsored Phase 2/3 trials were completed but no NDA was ever filed after mixed results.
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 is a separate question with its own answer — one green row never vouches for the rest.
Identity
UnknownNo independent test on record for this listing.
Measured purity
UnknownNo independent purity measurement on record.
Batch traceability
UnknownNo batch on this listing matches an independent record.
Sterility
Not testedA purity certificate doesn't measure this — no such test on record.
Dose accuracy
UnknownNot something VialGrade measures — no test on record.
These certificates are for MK-677 across every maker VialGrade tracks — not necessarily Peptide Pros’s own stock. This listing’s specific evidence is the matrix above.
Independent testing
Independent lab tests on record for MK-677
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.
100.0%
highest tested purity
No test for this vendor — but MK-677 is independently characterized
This vendor doesn't advertise independent testing, and we hold no COA tied to Peptide Pros specifically. We do hold 2 independent certificates for MK-677 (median 99.9% 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 Peptide Pros.
- MK-677 (market-wide). 2 independent COAs, median 99.9%.
Cross-checks the vendor’s testing claim against independent lab records. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Never a statement that a product is safe, sterile, or correctly dosed. What “grade” actually means
Price trend
0.0 % over 30 days
$79.00 → $79.00
Every observation
| Date | Observed |
|---|---|
| $79.00 | |
| $79.00 |
0.0 % over 30 days · 36 checks · $79.00 on Sep 2, 2026 → $79.00 on Oct 2, 2026. Vendor list price before shipping or discounts. Observed, not projected.
Research-use-only — not FDA-approved
Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.
General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Same compound
See the full MK-677 market — all 40 vendors, price history & lab tests