Which vendor has the cheapest MK-677?

Soma Chems currently offers the lowest price per mg at $2.00/mg. Prices are updated daily from vendor websites.

Which MK-677 vendor is most trusted?

Simple Peptide has the highest Finnrick trust score (7.0/10) among vendors selling MK-677. Finnrick scores are based on independent blind purity testing.

Is MK-677 third-party tested?

Finnrick blind-testing data drives our rankings. Independent Janoshik test reports are not yet available for these vendors — check individual vendor pages for any purity documentation they publish.

How many vendors sell MK-677?

We currently track 7 vendors selling MK-677, with 6 products in stock. Inventory and pricing are updated daily.

Best MK-677 Vendors in 2026

Growth Hormone

Ranked by Finnrick trust score, purity testing, and price.

Simple Peptide is our #1 pick for MK-677, with a Finnrick trust score of 7.0/10. Across 7 tracked vendors, prices range from $59.99 to $249.00. Rankings combine independent purity testing data, vendor trust scores, pricing, and stock availability. We never accept payment for placement.

Cheapest per mg: $2.00/mgat Soma Chems
Highest trust score: Simple Peptide(7.0/10)
In stock now: 6 products across 7 vendors
Last verified: Aug 6, 2026

Simple Peptide

Top Pick

7.0/10

$249.00(12.5mg)— $19.92/mg

In Stock

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Umbrella Labs

$70.99(1000mg)— $0.071/mg

In Stock

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Soma Chems

$59.99(30mg)— $2.00/mg

In Stock

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Loti Labs

$59.99(25mg)— $2.40/mg

In Stock

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Ruo Bio

$68.00(25mg)— $2.72/mg

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Onyx Research

$103.50(12.5mg)— $8.28/mg

In Stock

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Real Peptides

$150.00(10mg)— $15.00/mg

Out of Stock

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How we rank vendors

Our composite score weighs Finnrick blind-testing trust scores (62%), price competitiveness (25%), and stock availability (13%). Vendors without Finnrick data are sorted by price below scored vendors. We never accept payment for rankings. Learn more.

Compare all MK-677 vendors by price →

Last updated: August 6, 2026