Follistatin

Also known as: FST, FS344, FS315

HormonalPRECLINICAL

Clinical Status

Investigational — gene therapy trials.

Mechanism of Action

Binds and neutralizes myostatin, a protein that limits muscle growth. By blocking myostatin signaling, it allows increased muscle development.

Dosing Defaults

Dose

Research dosing

Frequency

See research protocols

Administration

Subcutaneous injection

Timing

Morning

Food

with or without

Duration

Variable

Dose range: See research dosing

Limited dosing data available.

Side Effects

•Muscle soreness
•Injection site reactions
•Flu-like symptoms
•Slight LDL increase
•Potential FSH suppression

Contraindications & Warnings

•Not medical advice
•Product quality concerns

Compare

Compare Follistatin with another peptide side-by-side.

Calculate Dose

Use the reconstitution calculator to prepare your Follistatin dose.

Open Calculator

Related Hormonal Peptides

PT-141

FDA APPROVED

Hormonal

FDA-approved for hypoactive sexual desire disorder. Works via brain pathways.

Melanotan II

PRECLINICAL

Hormonal

Tanning and sexual function peptide. Significant safety concerns.

Kisspeptin

PHASE 2

Hormonal

Master regulator of reproductive hormones. Triggers natural GnRH release.

Oxytocin

FDA APPROVED

Hormonal

The "bonding hormone." FDA-approved for labor induction.

This information is for educational purposes only and is not medical advice. Dosing data is based on research literature and community reports. Always consult a qualified healthcare provider before using any peptide.