FLGR-242: 5mg
FLGR-242 is a follistatin-based research construct that pairs Follistatin-344 with an albumin-binding domain, studied for its binding to myostatin (GDF-8) and activins within the TGF-β superfamily. Researchers study its effect on ActRIIB receptor availability and Smad2/3 signaling. Sold for research and laboratory use only — not for human or veterinary use.
Ships same day from California on orders placed before 2PM PST · UPS Priority, 1–3 days
Freeze-dried powder, not liquid
Peptides are required to be reconstituted before research use.
About This Product
FLGR-242 (Recombinant Follistatin) is supplied by Warrior Makers for laboratory research under our Growth Hormone Peptide Research line, with third-party testing and a Certificate of Analysis on every batch.
What is FLGR-242?
FLGR-242 is a follistatin-based research construct. It pairs Follistatin-344 with an albumin-binding domain joined by a hydrophilic glycine-serine linker, a design intended to extend how long the molecule remains in circulation compared with native follistatin, which clears in roughly one to two hours. It is supplied as a lyophilized powder for laboratory research.
What Does FLGR-242 Do?
Follistatin is an endogenous binding protein for members of the TGF-β superfamily, most notably myostatin (GDF-8) and the activins. Researchers use FLGR-242 to study ligand sequestration and receptor availability at ActRIIB, along with downstream Smad2/3 signaling, in laboratory models. The construct is described as favoring myostatin binding over activin binding, which allows the two pathways to be examined separately.
Is FLGR-242 Safe to Use?
FLGR-242 hasn’t been evaluated by the FDA, and there’s no established safety data for use in humans. This product is intended for research and laboratory use only — not for human or veterinary use, and not for diagnosing, treating, or preventing any disease.
Where to Buy FLGR-242?
You can buy FLGR-242 directly at Warrior Makers here, backed by third-party lab tests and Certificate of Analysis (COA) availability. Manufactured under controlled conditions and intended strictly for research and laboratory use.
Frequently Asked Questions
Is FLGR-242 FDA approved?
No — FLGR-242 isn’t approved by the FDA and is sold strictly for research use.
What is FLGR-242 derived from?
It is built on Follistatin-344 with an albumin-binding domain attached by a glycine-serine linker. The construct details and molecular weight for each lot are confirmed on that lot’s Certificate of Analysis.
How does FLGR-242 ship?
As a freeze-dried powder that needs to be mixed with bacteriostatic water before lab use. Vials ship in insulated cold-chain thermal packaging.
How should FLGR-242 be stored?
As an unreconstituted, freeze-dried powder it should be kept refrigerated at 2-8°C and away from direct light prior to laboratory use.
This product is intended for research purposes and laboratory use only.
Not for human or veterinary use. Not intended for consumption, diagnosis, treatment, or prevention of any disease.
Specifications
- Product Name
- FLGR-242
- Research Category
- Follistatin / Myostatin Pathway Research
- Available Contents (mg, mcg)
- 5mg
- Physical Form
- Lyophilized Powder
- Solubility
- Soluble in bacteriostatic water
- Molecular Weight (g/mol)
- ~40,000 (approx. 40 kDa)
- Purity Documentation
- Certificate of Analysis (COA)
- Identity Testing
- HPLC / LC-MS
- Purity
- 99%+ when confirmed by lot COA
- Excipients
- None
- Storage Conditions
- Refrigerated (2-8°C)
- Shipping
- Thermal-packed via FedEx
- Shelf Life
- 24 months from manufacturing
- Intended Use
- RESEARCH USE ONLY
What researchers are saying
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Shipping & Handling
Legal Disclaimer: For research purposes only. Not intended for consumption, clinical application, or diagnostic use. The buyer assumes full responsibility for appropriate handling, usage, and adherence to all relevant laws and regulations.



