Follistatin (FLGR242) (10mg)

Overview

Product Description

Follistatin (FLGR242), is a novel fragmented, modified version of Follistatin-344 (FST-344) that does not bind to the protein activin. Activin is responsible for the negative effects of myostatin inhibition such as unwanted cellular growth in laboratory models. It also contains a patented albumin binder.

Follistatin protein (FST) fused with an albumin-binding construct that uses a hydrophilic glycine-serine linker to achieve high-affinity binding to serum albumin (<20 nM Kd). This recombinant technology allows researchers to study follistatin-albumin interactions and protein trafficking in experimental systems.

Research applications include muscle mass development studies, activin neutralization assays, and TGF-β superfamily pathway modulation with albumin binding dynamics. The construct maintains biological activity while enabling investigation of albumin as a carrier protein.

US GMP-manufactured with third-party verification and comprehensive COAs for reproducible research outcomes.

Peptide Information

Lyophilized Peptides:

These peptides are freeze-dried, a process that not only extends shelf life but also preserves the purity and integrity of the peptides during storage. We do not use any fillers in this process.

Product Usage:

This PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only.  This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused or mislabeled as a drug.

BioLongevity Labs supplies this material for in vitro and qualified non-clinical research. Buyers must be 18 or older and accept research-use-only terms. It is not a drug, medical device, or dietary supplement.

Follistatin / myostatin-pathway research

Follistatin family peptides are tools for studying activin and myostatin pathway modulation in muscle and metabolic cell lines. This is defined research material with analytical testing—not a dietary supplement category.

Document receptor endpoints and batch purity in publication methods sections. Include lot numbers in supplementary files for multi-figure studies. For laboratory research use only (RUO)—not for human or veterinary consumption, diagnosis, or treatment.

Research peptide capsules

Follistatin (FLGR242) (10mg) is offered in capsule form for laboratories studying oral peptide stability, bioavailability models, and convenience dosing in non-human research systems. Capsule integrity and fill uniformity should be verified per your incoming QC checklist.

Research program design notes

Define primary and secondary endpoints before ordering: cell viability, migration, qPCR panels, or secretome profiling. Use vehicle controls and batch-matched reference material. Power studies for expected effect sizes rather than duplicating anecdotal dosing from non-research forums.

When publishing, include vendor name, catalog identifier, batch number, purity method, and reconstitution solvent. Transparent methods support reproducibility and institutional audit readiness.

Pair Follistatin (FLGR242) (10mg) with complementary SKUs only when your protocol pre-specifies combination arms—avoid post-hoc stacking that confounds interpretation.

Certificate of analysis (COA) & quality verification

Every release should be tied to a batch-specific certificate of analysis—not a generic marketing PDF. BioLongevity Labs targets ≥99% purity by HPLC where applicable, with mass spectrometry confirmation of sequence or molecular weight on lyophilized peptides.

On receipt, verify that the batch number on the COA matches the vial or container label, archive the document in your ELN/LIMS, and reject material that lacks identity data. Read our COA interpretation guide for red flags and institutional procurement checklists.

Third-party or qualified in-house testing should be cited in publication methods. Do not assume prior batches apply to new experiments.

Capsule & tablet handling for research programs

Oral-dosage-form research SKUs are supplied for laboratory investigation of peptide bioregulator complexes and related formulations—not for human ingestion outside approved institutional protocols. Store sealed containers cool and dry; protect from humidity that can affect capsule integrity.

Document lot numbers on receipt; opened containers may be excluded from returns under RUO integrity policies. Weigh or extract material per your analytical SOP if the study requires solubilized peptide rather than whole capsule testing.

USA fulfillment supports predictable receiving for university and CRO procurement teams. For laboratory research use only (RUO)—not for human or veterinary consumption, diagnosis, or treatment.

Study design & methodology recommendations

Structure experiments with pre-registered endpoints, power analysis, and batch-randomized treatment arms. Include vehicle controls, positive controls where available, and blinded readouts when feasible. Document incubator conditions, passage number, serum lot, and media composition—environmental variables often dominate peptide response magnitude in cell systems.

For multi-dose studies, prepare a master stock at the highest planned concentration, then serially dilute with the same solvent lot to reduce preparation error. Log vial IDs, reconstitution timestamps, and storage duration on the bench sheet. When combining peptides, add combination arms only if specified a priori; otherwise confounding undermines interpretability.

Replicate across biological replicates (distinct wells, animals, or tissue isolations) rather than technical duplicates alone. Report effect sizes with confidence intervals, not only p-values. If results are null, publish or archive them to reduce literature bias in peptide research.

Documentation for publications & audits

Methods sections should name the commercial source (BioLongevity Labs), catalog identifier, lot/batch number, stated purity, analytical methods cited on the COA, solvent, and storage between use. Link internal ELN entries to the exact PDF COA received with the shipment.

During institutional audits, auditors expect traceability from purchase order → receiving record → bench use → disposal. Maintain temperature logs for refrigerators storing lyophilized material. Flag any vial with compromised stopper or label illegibility before use.

Do not cite consumer forum dosing as rationale for laboratory concentrations. Use peer-reviewed primary literature or pilot titrations in your model system.

Comparing vendors & material qualification

When qualifying a new supplier, run side-by-side identity checks (HPLC/MS), endotoxin screening if required by your facility, and a minimal bioassay relevant to your lab. Reject material with template COAs lacking batch numbers or chromatogram traces.

BioLongevity Labs competes on documentation transparency, USA-oriented fulfillment, and a broad catalog spanning repair peptides, bioregulators, and specialty research lines. See where to buy research peptides (USA) for procurement criteria and research FAQ for ordering policies.

Compliance & safety in the lab

Handle research chemicals with appropriate PPE, engineering controls, and waste disposal per your chemical hygiene plan. Train staff on lyophilized peptide handling, sharps, and spill response. For laboratory research use only (RUO)—not for human or veterinary consumption, diagnosis, or treatment.

BioLongevity Labs does not provide medical, legal, or dosing advice. Buyers represent that use is solely for research.

How to buy this research SKU in USA

Looking for where can I buy research peptides in USA? BioLongevity Labs fulfills orders from USA facilities with documented RUO acceptance at checkout—including California, Texas, Florida, New York, Illinois, and Arizona. How to buy: select your option on this page and complete checkout. How much for this SKU in USA? Live pricing is listed above and updates with batch availability.

Business-day cutoffs apply for same-day shipping on qualifying orders—see shipping and payments for carrier and cutoff details. Qualified laboratories, universities, and CROs may contact support for batch traceability questions. Wholesale inquiries route through wholesale. For peptide selection by research goal, use the protocol finder.

Returns on opened research material may be restricted to preserve chain-of-custody—review refund policy before ordering.

Related resources: research peptide catalog, how to read a peptide COA, peptide reconstitution guide.