Best Follistatin 315 Vendors in 2026
Growth HormoneRanked 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, verified by Peptide Compare on 10 Oct 2026. Prices are scraped from vendor sites; trust scores come from Finnrick blind tests.
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- Highest trust score
- Peptide Sciences(6.6/10)
- In stock now
- 0 products across 3 vendors
- Last verified
- Oct 10, 2026
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Top Follistatin 315 vendors at a glance
| Rank | Vendor | Trust score | Per mg |
|---|---|---|---|
| #1 | Peptide SciencesOut of stock | 6.6/10 | $155.00 |
| #2 | Umbrella LabsOut of stock | untested | $99.99 |
| #3 | Behemoth LabzOut of stock | untested | $172.00 |
All 3 ranked Follistatin 315 vendors
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#2
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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.