Follistatin

Description

Follistatin is an activin-binding glycoprotein, sold by Pure Rawz for laboratory research. Each batch is checked for 99%+ purity. It’s intended for research use only.

About Follistatin

Follistatin is a glycoprotein that binds and blocks activin and myostatin. FST-344 is the full precursor form, which is processed into FST-315.

It’s a key tool in myostatin research.

Mechanism of action

Follistatin binds activin and myostatin tightly and stops them reaching their receptors. With myostatin blocked, muscle cells grow larger.

FST-344 is the longer form that gets processed into the circulating FST-315, which has a lower affinity for cell surfaces.

Published Follistatin research

Lee and McPherron reported in PNAS (2001) that follistatin overexpression in mice produced large increases in muscle mass.

Gene therapy studies with FST-344 followed in primates.

To read the original papers, start with this PubMed search for Follistatin 344.

Options and prices

There are 3 ways to buy it, from $132.12 to $185.72:

• Follistatin 344 (85%), 1mg: $132.12
• Follistatin 315 (98%), 1mg: $163.97
• Follistatin 344 (95%), 1mg: $185.72

Study design notes

Growth hormone research usually measures GH pulses and IGF-1 in blood, and sometimes body composition. Because GH comes in pulses, sampling time matters a lot.

Many labs pair a GHRH-type peptide with a ghrelin-receptor peptide to study how the two signals add up. Fasting state and time of day both change GH output, so keep them constant between groups.

Typical endpoints are serum GH at several time points, IGF-1, IGFBP-3, and body composition in longer studies. Some labs also track sleep, since GH release peaks in deep sleep.

Follistatin at a glance

• Compound: Follistatin 344
• Also known as: FST-344
• Class: activin-binding glycoprotein
• Options: 3 sizes and forms
• Purity: 99% or higher, verified by first- and third-party testing
• Use: laboratory research only

How we test each batch

Every batch is tested before it goes on sale. Identity is checked by mass spectrometry, and purity by HPLC, with a target of 99% or higher.

Each container is labeled with the product, the amount and the batch number. Email us that number and we’ll send the certificate of analysis for your batch.

Storage and shelf life

Keep the container sealed at room temperature, away from heat, moisture and sunlight. Label the container with the opening date. It saves guesswork later.

Handling notes

Treat it as a lab chemical. Gloves and safety glasses are the minimum, and a clean, uncluttered workspace cuts down on mix-ups.

Store prepared solutions apart from untouched stock, and record who mixed what and when.

Related products

• GHRP-6: GHRP-6 is a six-amino-acid synthetic peptide, His-D-Trp-Ala-Trp-D-Phe-Lys-NH2, from Cyril Bowers’ work in the early 1980s.
• IGF-1 DES: IGF-1 DES is insulin-like growth factor 1 missing its first three amino acids, Gly-Pro-Glu.
• Myostatin Propeptide: Myostatin propeptide is the N-terminal prodomain that the cell cuts off when it makes myostatin (GDF-8).
• Ghrelin Acetate: Ghrelin is a 28-amino-acid hormone made mostly in the stomach.
• HGH GMP 98%: HGH GMP 98% is recombinant somatropin, the 191-amino-acid form of human growth hormone, made under GMP manufacturing standards and tested at 98% purity.

You can also browse our full growth hormone peptides pages.

How it compares

CJC-1295 With DAC: CJC-1295 with DAC is modified GRF(1-29), the first 29 amino acids of growth hormone releasing hormone with four substitutions, plus a lysine carrying a maleimide linker. That linker is the drug affinity complex, made by ConjuChem in Montreal.

GHRP-6: GHRP-6 is a six-amino-acid synthetic peptide, His-D-Trp-Ala-Trp-D-Phe-Lys-NH2, from Cyril Bowers’ work in the early 1980s. It was one of the first growth hormone releasing peptides, and it was studied years before ghrelin, the hormone it mimics, was found in 1999.

Follistatin questions

Can it be used in people or animals?

No. It’s sold for laboratory research only and isn’t approved for human or veterinary use.

How should I store it?

Follow the storage section above. In short: cold and dark for freeze-dried vials, room temperature and dry for capsules, tablets, powders and liquids, unless the label says otherwise.

What forms does it come in?

It comes in 3 sizes, listed in the dropdown on this page.

Is Follistatin in stock?

Yes. It’s in stock and ships from our warehouse after your order clears.

Does it come with a certificate of analysis?

Yes. Every batch is tested, and we’ll email the certificate of analysis for your batch number on request.

Buy Follistatin online

Order Follistatin now from $132.12. It’s in stock, and checkout takes about two minutes.

Need more for the same project? Have a look at our growth hormone peptides and research peptides.

For laboratory research use only. Not for human or veterinary use. These statements have not been evaluated by the FDA.