Primo Pharma

Peptides

Follistatin 344 (FS344) 1 mg

Follistatin 344 (FS344) is a naturally occurring glycoprotein-derived peptide that binds and neutralizes members of the TGF-β superfamily, most notably myostatin (GDF-8) and activins. This makes FS344 a highly valuable research compound for studying muscle growth, cellular differentiation, fertility biology, and tissue regeneration. In laboratory environments, Follistatin 344 is used to explore mechanisms associated with muscle hypertrophy, inhibition of myostatin signaling, stem-cell activation, and regenerative pathways. Due to its strong binding activity and biological relevance, it is frequently employed in musculoskeletal, endocrinological, and molecular regeneration research.

Size

1 mg
3 mg

≥ 99%

Purity
Lyophilized peptide

Form
at 2–8°C

Storage
05/2027

Expiration date

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Key Benefits

(Observed in controlled preclinical and scientific research models)

Myostatin Inhibition: Supports studies evaluating reduced myostatin activity and enhanced muscle growth pathways.
Muscle Hypertrophy Research: Commonly used to investigate increased muscle fiber size, regeneration, and anabolic signaling.
Stem Cell & Satellite Cell Activation: Helps evaluate cellular repair and differentiation processes.
Tissue Healing Models: Studied for potential roles in tendon, ligament, and soft-tissue recovery.
Fertility & Reproductive Biology: Useful in research related to activin signaling and reproductive hormone pathways.
Regenerative Medicine: Frequently applied in studies exploring cell growth, protein synthesis, and tissue renewal.

Potential Side Effects

(Generally mild and dose-dependent in research environments)

Mild headache
Temporary fatigue
Occasional muscle tightness or fullness
Localized irritation at administration sites
Rare transient fluctuations in metabolic or endocrine markers

Responses vary depending on the research model, dosage, and experimental protocol.

Storage & Stability

Store lyophilized peptide at 2–8°C for short-term storage.
For long-term preservation, maintain at –20°C, protected from moisture and light.
After reconstitution, keep at 2–8°C and use within the recommended stability period.

Important Disclaimer

This product is intended strictly for laboratory, scientific, and research use only.

It is not a medication, supplement, performance enhancer, or product for human or veterinary consumption.

Not for therapeutic, diagnostic, or clinical application.

All handling must be performed by trained laboratory professionals following established safety protocols.