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Growth Hormone AxisResearch Only · Not FDA-Approved

Follistatin-344Activin- and myostatin-binding glycoprotein

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Research Only · Not FDA-Approved. Not FDA-approved. Provided as an educational reference only — not offered or sold by True Heal Wellness. True Heal Wellness does not offer, sell, or administer Follistatin-344; this page is provided strictly as an educational reference.
Mechanism
Binds activins and myostatin, reducing signaling through TGF-beta superfamily pathways.
Researched For
Myostatin signaling · Muscle growth · Activin biology
The essentials

At a Glance

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Compound type

Glycoprotein

Researched for

Myostatin signaling, muscle growth and activin biology.

Evidence level

E — Experimental therapeutic use

U.S. FDA status

Not FDA-approved.

Routes studied

Experimental.

Doses studied

No established human therapeutic dose. Injectable protocols circulating online are not prescribing guidance.

Safety notes

Broad activin/myostatin blockade could affect reproductive, vascular and metabolic systems.

Anti-doping (WADA)

Prohibited/performance-enhancing concern under WADA.

Availability at True Heal

True Heal Wellness does not offer, sell or administer Follistatin-344. This page exists as an educational reference only.

Last reviewed

2026-08-11

Regulatory status

Not FDA-approved.

Follistatin carries a high performance-enhancement and anti-doping concern.

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What Follistatin-344 is

Naturally occurring activin-binding glycoprotein investigated for myostatin inhibition and muscle biology. It is also referred to as Follistatin and FST344.

How it works

Binds activins and myostatin, reducing signaling through TGF-beta superfamily pathways.

What the evidence shows

Gene-therapy and preclinical research exist; injectable FST344 is not an established approved treatment.

Evidence level: E — Experimental therapeutic use.

Routes studied: Experimental.

Doses studied: No established human therapeutic dose. Injectable protocols circulating online are not prescribing guidance.

What this page does not claim

Follistatin carries a high performance-enhancement and anti-doping concern.

Safety considerations

Broad activin/myostatin blockade could affect reproductive, vascular and metabolic systems.

  • Cautions and contraindications: Reproductive/hormone-sensitive conditions require caution.

Sport and anti-doping

Prohibited/performance-enhancing concern under WADA.

Availability at True Heal Wellness

True Heal Wellness does not offer, sell or administer Follistatin-344. This page exists as an educational reference only.

Straight answers

Frequently asked

What is Follistatin-344?

Naturally occurring activin-binding glycoprotein investigated for myostatin inhibition and muscle biology.

Is Follistatin-344 FDA-approved?

Not FDA-approved. Follistatin carries a high performance-enhancement and anti-doping concern.

What is Follistatin-344 researched for?

Myostatin signaling, muscle growth and activin biology.

What does the evidence on Follistatin-344 show?

Gene-therapy and preclinical research exist; injectable FST344 is not an established approved treatment. Evidence level: E — Experimental therapeutic use.

What are the safety considerations with Follistatin-344?

Broad activin/myostatin blockade could affect reproductive, vascular and metabolic systems. Cautions: Reproductive/hormone-sensitive conditions require caution.

Does True Heal Wellness offer Follistatin-344?

True Heal Wellness does not offer, sell or administer Follistatin-344. This page exists as an educational reference only.

Keep exploring

Related topics

IGF-1 LR3 →
Long-acting IGF-1 analog used in experimental muscle and cell-growth research.
GDF-11 →
TGF-beta superfamily growth factor studied in development, muscle, cardiovascular and aging biology.
The evidence

References

  1. PepEd Hub — Follistatin-344 compound profile. pepedhub.com
Your next step

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Medical disclaimer. For research and educational purposes only. This content does not constitute medical advice — consult a qualified healthcare provider before beginning any protocol.

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