Follistatin-344

Catalog no. PH-FST344Size 10mgMW (reference) ~38 kDa
Description
Follistatin-344 is a single-chain glycoprotein that binds and neutralizes members of the TGF-β superfamily, particularly myostatin and activin. This naturally occurring protein is a key regulator of muscle growth.
Mechanism of Action
Follistatin-344 binds myostatin with high affinity, preventing it from activating its receptor and suppressing muscle growth. Research shows roles in muscle hypertrophy and reproductive signaling (Esposito et al., 2022). Studies in IBD show diagnostic potential (Skrzypczak et al., 2021).
Research Applications
- Myostatin inhibition studies (Esposito et al., 2022)
- Muscle growth research (Skrzypczak et al., 2021)
- Muscular dystrophy models
- Biomarker research
Product Specifications
- Purity: ≥98% (HPLC verified)
- Molecular Weight: ~38 kDa
- Form: Lyophilized powder
- Storage: -20°C
References
- Esposito P, et al. J Transl Med. 2022. PMID: 35152972
- Skrzypczak D, et al. J Clin Med. 2021. PMID: 34680417
SpecsCompound Specifications
Compound Specifications
- Also known as
- Follistatin 344, Follistatin
- Molecular Weight
- ~38 kDa
- Form
- Lyophilized powder
- Storage
- −20°C or below, protected from light and moisture
HandlingStorage & Handling
Storage & Handling
Storage
Follistatin-344 is supplied as a lyophilized powder. Keep it sealed, dry, and away from light until reconstitution.
Stability
Lyophilized material is stable when frozen. Once reconstituted, keep it cold and minimise handling to preserve integrity.
ResearchResearch Overview
Research Overview
Follistatin-344 is a synthetic peptide compound used in laboratory research settings. Researchers studying growth hormone releasing hormone pathways use this compound to investigate cellular signaling pathways, receptor binding affinities, and structure-activity relationships. No third-party certificate is on file for this product yet.
Documentation & Resources
- Research Blog — protocols, guides, and peptide research literature
- Research Use Policy — handling and compliance guidelines
Frequently Asked Questions
What is Follistatin-344?
Follistatin-344 is a research compound supplied for in-vitro laboratory use. Also known as Follistatin 344, Follistatin. Supplied for growth hormone releasing laboratory research. Research Use Only — not for human or veterinary use.
What purity is Follistatin-344?
No certificate with an HPLC purity figure is published for Follistatin-344 yet.
Does Follistatin-344 include a Certificate of Analysis?
No certificate is published for Follistatin-344 yet.
How should Follistatin-344 be stored?
Follistatin-344 is supplied as a lyophilized powder. Store it at −20°C or below, protected from light and moisture — lyophilized material is stable frozen. Once reconstituted, keep it refrigerated and avoid freeze-thaw cycles.
How is Follistatin-344 shipped?
Orders ship at a $15 flat rate, free on orders of $200 or more, in discreet, insulated packaging. Domestic delivery takes 2–3 business days — 2-day across California, nearby Nevada, and on orders of $250+.
Can Follistatin-344 be used on humans or animals?
No. Follistatin-344 is supplied strictly for in-vitro laboratory research. It is not for human or veterinary use, consumption, or diagnostic or clinical applications.
Is Follistatin-344 the same as Follistatin 344?
Yes. Follistatin-344 is also spelled or referred to as Follistatin 344, Follistatin. These are naming variants of the same compound, not different products.
What is the price per mg for Follistatin-344?
The 10mg size of Follistatin-344 is $59.40 per mg. See the size selector above for per-mg pricing on every available size.







