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§ Same category · GH-stack peptides

FST-344 vs GCP

Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.

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FST-344
2
vendors tracked
from $138.00/mg
GCP
0
vendors tracked

FST-344

Follistatin isoform research

Operational
$138.00
$138.00/mg
Out of stock◎ Best $/mg
Buy with code →
Operational
$499.99
$499.99/mg
In stockOn sale262.3% vs best
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2026-05-09

GCP

Vendor growth-peptide complex

No current listings at 5mg.

About FST-344

The 344-residue isoform of follistatin, studied for myostatin inhibition and muscle growth research.

About GCP

Vendor-branded growth-peptide complex. Composition varies; verify COA.