Follistatin 344 vs MGF
Which should you choose? Here's what you need to know.
The short answer
Follistatin 344 and MGF are both growth hormone peptides, but they work differently. Mechano Growth Factor, a splice variant of IGF-1 produced in response to muscle damage. Studied for muscle repair and growth. Compare vendor pricing and availability below.
On 17 Sep 2026 Peptide Compare tracked 10 vendors selling Follistatin 344, cheapest in stock $96.00 per mg at Ruo Bio, and 22 selling MGF, cheapest $11.80 per mg at Biotech Peptides.
Follistatin 344
Growth HormoneMGF
Growth HormoneMechano Growth Factor, a splice variant of IGF-1 produced in response to muscle damage. Studied for muscle repair and growth.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 17, 2026.
Follistatin 344
MGF
$96.00
Starting from
$28.99
$485.64
Avg. price per mg
$18.48
10
Vendors selling it
22
5 options
In stock now
19 options
7.6/10
Top trust score
9.1/10
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Our top-rated vendor for each, based on trust scores, purity testing, and price.
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Where does this data come from?
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.