Follistatin 344 Peptide
$156.00
Research-grade Follistatin 344 (FS-344), a recombinant 344-amino-acid activin-binding glycoprotein, is designed for controlled laboratory investigations of myostatin/activin antagonism, satellite cell biology, and tissue-specific blockade of the TGF-β pathway. For Research Use Only. Not for human use.
Discount per Quantity
| Quantity | 5 – 9 | 10 + |
|---|---|---|
| Discount | 5% | 10% |
| Price | $148.20 | $140.40 |
Orders over $200: FREE USPS Priority shipping.
- >99% purity — HPLC + MS verified
- Cold-pack insulated mailers
- Discreet US shipping (2–5 days)
- COA available on request
Research Use Only. Not for human consumption. Sold strictly for laboratory and research use.
Follistatin 344 is the predominant circulating isoform of follistatin, a naturally occurring glycoprotein that binds and neutralizes myostatin (GDF-8), activin A, and other TGF-β family members. First identified in ovarian follicular fluid as an activin antagonist, it is recognized as a potent endogenous inhibitor of myostatin, making it a subject of interest in skeletal muscle cell research. According to pmc.ncbi.nlm.nih.gov, follistatin has been investigated in the context of myostatin inhibition in preclinical research models. This research-grade lyophilized protein is produced under strict quality controls and provided with full analytical documentation. For Research Use Only. Not for human use.
Key Scientific Attributes
- High-purity Follistatin 344 (≥ 98% by HPLC/SDS-PAGE, recombinant human sequence)
- Verified 344-amino-acid mature isoform (Gly30–Asp344) with correct disulfide bonding
- Lyophilized formulation for maximum long-term stability
- Full Certificate of Analysis (COA) with HPLC, SDS-PAGE, myostatin/activin binding ELISA, and endotoxin testing
- Manufactured in GMP-aligned, ISO-compliant facilities
- Suitable for myostatin blockade and TGF-β antagonism studies in laboratory settings
Research-Referenced Attributes (Based on scientific literature; not therapeutic claims.)
- Studies suggest Follistatin 344 may modulate satellite cell activity and myostatin signalling pathways in in vitro and preclinical research models, as noted by openmedscience.com
- Research indicates potential interactions with activin A signalling pathways relevant to cancer cachexia and reproductive biology research contexts
- Investigated in laboratory models relevant to neuromuscular biology and TGF-β superfamily signalling.
Why Researchers Choose This Follistatin 344
- Recombinant human sequence with documented myostatin-neutralizing activity in binding assays
- Transparent analytical data (HPLC/SDS-PAGE + functional myostatin binding assay)
- Suitable for muscle physiology, neuromuscular biology, and TGF-β signalling research laboratories
- Competitive research pricing with bulk options
| SKU | follistatin-344-1mg |
|---|---|
| Category | Peptides |
| Purity | >99% (HPLC + MS verified) |
| Form | Lyophilized powder |
| Origin | Synthesized in the USA |
Certificate of Analysis
Every lot is verified by reverse-phase HPLC for purity and by mass spectrometry for identity. A current COA is available on request — email sales@limitlesslifenootropics.st with the lot number printed on your vial.
- HPLC purity: >99%
- Identity confirmed by ESI-MS
- Lyophilized, sterile-filtered solutions where applicable
- Stored at −20°C until shipment
Shipping & handling
Orders placed before 2pm CT ship the same business day in cold-pack insulated mailers. USPS Priority delivery in 2–5 business days. Free shipping on US orders over $200.
Frequently asked questions
How should I reconstitute this peptide?
Use bacteriostatic water for short-term lab storage. Direct the diluent down the side of the vial, swirl gently — do not shake.
What is the shelf life?
Lyophilized peptide stored at −20°C is stable for 24+ months. Reconstituted peptide should be refrigerated and used within 2–4 weeks.
Do you ship internationally?
We currently ship within the United States only. International researchers should contact our bulk team for institutional quotes.
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