Which vendor has the cheapest Follistatin 315?

Prices vary across 3 vendors. Check the comparison table for current pricing.

Which Follistatin 315 vendor is most trusted?

Peptide Sciences has the highest Finnrick trust score (6.6/10) among vendors selling Follistatin 315. Finnrick scores are based on independent blind purity testing.

Is Follistatin 315 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 Follistatin 315?

We currently track 3 vendors selling Follistatin 315, with 0 products in stock. Inventory and pricing are updated daily.

Best Follistatin 315 Vendors in 2026

Growth Hormone

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

Peptide Sciences is our #1 pick for Follistatin 315, with a Finnrick trust score of 6.6/10. Across 3 tracked vendors, prices range from $99.99 to $172.00. Rankings combine independent purity testing data, vendor trust scores, pricing, and stock availability. We never accept payment for placement.

Highest trust score: Peptide Sciences(6.6/10)
In stock now: 0 products across 3 vendors
Last verified: Aug 19, 2026

Peptide Sciences

Top Pick

6.6/10

$155.00(1mg)— $155.00/mg

Out of StockLast checked 13d ago

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Umbrella Labs

$99.99(1mg)— $99.99/mg

Out of Stock

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Behemoth Labz

$172.00(1mg)— $172.00/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.

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Last updated: August 19, 2026