Not approved (research only)Follistatin precursor isoformMuscle research
Follistatin-344
Follistatin-344 is the precursor isoform of follistatin used in gene-therapy research; vendor vials are research-only.
What is Follistatin-344?
Follistatin-344 is the precursor isoform of follistatin used in gene-therapy research; vendor vials are research-only. Follistatin-344 is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
Key takeaways
- Follistatin-344 is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
- PubMed indexes 5 papers on Follistatin-344 (0 tagged as clinical trials) as of October 19, 2026.
- 6 vendors in our directory listed Follistatin-344 in their public catalog on October 19, 2026.
Regulatory & access status
Follistatin-344 is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
Sellers that market unapproved peptides for human use can receive FDA warning letters; our vendor directory links any letter we found on fda.gov.
How much research exists on Follistatin-344?
PubMed indexes 5 papers mentioning Follistatin-344 in the title or abstract, 1 of them from the last five years and 0 tagged as clinical trials (search run October 19, 2026; repeat the search).
Most relevant recent papers
- Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance. — Sports Med, 2026 · review
- Detection of black market follistatin 344. — Drug Test Anal, 2019
- Detection of black market follistatin 344. — Drug Test Anal, 2020
- The transgenic expression of human follistatin-344 increases skeletal muscle mass in pigs. — Transgenic Res, 2017
- Central serous chorioretinopathy associated with high-dose follistatin-344: a retrospective case series. — Int Ophthalmol, 2020
What the evidence does not show
- Paper counts measure research attention, not whether Follistatin-344 works or is safe.
- No clinical trial in humans is tagged in PubMed under this name.
- No FDA review of any "research use only" product's identity, purity, sterility or dose.
Research suppliers that list Follistatin-344
6 vendors in our directory listed a product matching Follistatin-344 in their public catalog on October 19, 2026. Listed alphabetically; a listing is not an endorsement. Research use only.
Prices per mg, where we could verify them, are on our price comparison.
Follistatin-344 reconstitution math
Lab arithmetic only, not dosing guidance: use the peptide calculator to turn a vial size and diluent volume into a concentration.
Follistatin-344 FAQ
Is Follistatin-344 FDA-approved?
Follistatin-344 is not approved by the FDA for any use; products sold under this name are labeled for research use only, not for human consumption.
Is Follistatin-344 safe?
There are no published human safety trials of Follistatin-344 that we could find. Products sold as "research use only" have no FDA review of purity, sterility or dose, and are not for human use.
How much research is there on Follistatin-344?
PubMed indexes 5 papers on Follistatin-344 (0 tagged as clinical trials) as of October 19, 2026.
Who sells Follistatin-344?
Biotech Peptides, Core Peptides, Paramount Peptides, Pharma Grade Peptides, San Diego Peptides, Swiss Chems listed it on their public catalogs when we checked; a listing is not an endorsement.
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Follistatin-315FollistatinGHRHGHRP-6SomatropinHexarelinMGFTesamorelinAll growth hormone & ghrh