§ Same category · GH-stack peptides
FST-315 vs IGF-1 LR3
Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.
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FST-315
0
vendors tracked
IGF-1 LR3
13
vendors tracked
from $50.00/mg
FST-315
Follistatin short isoform research
No current listings at 1mg.
IGF-1 LR3
Long-acting IGF-1 analog
Watch
$50.00
$50.00/mg
Out of stockOn sale
B
Operational$59.99
$59.99/mg
In stock▲ 20.0% vs best
Operational
$64.00
$64.00/mg
In stock▲ 28.0% vs best
Operational
$65.00
$65.00/mg
In stock▲ 30.0% vs best
Operational
$69.99
$69.99/mg
In stock▲ 40.0% vs best
B-
Operational$74.25
$74.25/mg
In stockOn sale▲ 48.5% vs best
Operational
$75.59
$75.59/mg
In stock▲ 51.2% vs best
B-
Operational$85.00
$85.00/mg
In stock▲ 70.0% vs best
Watch
$85.00
$85.00/mg
In stock▲ 70.0% vs best
B
Operational$90.00
$90.00/mg
Out of stock▲ 80.0% vs best
Operational
$97.19
$97.19/mg
Out of stock▲ 94.4% vs best
B-
Operational$109.00
$109.00/mg
In stock▲ 118.0% vs best
Operational
$150.00
$150.00/mg
In stock▲ 200.0% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | Stock | |
|---|---|---|---|---|---|---|---|
| S1 Research (Step One Ventures) US | C | Watch | $50.00 On sale | $50.00 | Out | Buy with code → | |
| Welli Labs US | B | Operational | $59.99 ▲ 20.0% | $59.99 | In stock | Visit → | |
| Modern Aminos US | B | Operational | $64.00 ▲ 28.0% | $64.00 | In stock | Visit → | |
| FITSKNS Research Group US | B- | Operational | $65.00 ▲ 30.0% | $65.00 | In stock | Visit → | |
| Double R Labs US | B | Operational | $69.99 ▲ 40.0% | $69.99 | In stock | Visit → | |
| Southern Aminos US | B- | Operational | $74.25 On sale ▲ 48.5% | $74.25 | In stock | Visit → | |
| ResearchPeptide UK UK | B- | Operational | $75.59 ▲ 51.2% | $75.59 | In stock | Visit → | |
| Atomik Labz US | B- | Operational | $85.00 ▲ 70.0% | $85.00 | In stock | Visit → | |
| Solution Peptides US | B- | Watch | $85.00 ▲ 70.0% | $85.00 | In stock | Visit → | |
| Ion Peptide US | B | Operational | $90.00 ▲ 80.0% | $90.00 | Out | Visit → | |
| Research Peptides Europe EU | A | Operational | $97.19 ▲ 94.4% | $97.19 | Out | Visit → | |
| Lab Sourced US | B- | Operational | $109.00 ▲ 118.0% | $109.00 | In stock | Visit → | |
| Core Peptides US | A | Operational | $150.00 ▲ 200.0% | $150.00 | In stock | Visit → |
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Last crawl 2026-05-09Sort:
2026-05-09About FST-315
The 315-residue isoform of follistatin, studied for myostatin inhibition and muscle growth research.
About IGF-1 LR3
An IGF-1 analog engineered with reduced IGF binding-protein affinity, giving extended half-life for muscle/hypertrophy research.