Understand the source comparison
Follistatin-344 Oral vs Injectable: Research Comparison
The following table summarizes the pharmacological, practical, and research-relevant differences between oral and injectable follistatin-344 delivery methods. Bioavailability Near-zero. Gastric enzymes (pepsin, trypsin) degrade peptide bonds before systemic ab
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- The following table summarizes the pharmacological, practical, and research-relevant differences between oral and injectable follistatin-344 delivery methods.
- Bioavailability
- Near-zero. Gastric enzymes (pepsin, trypsin) degrade peptide bonds before systemic absorption
- High. Intact peptide enters interstitial fluid and diffuses into circulation
- Injectable is the only route that delivers active follistatin-344 to target tissues
- Mechanism of Action
- Does not deliver exogenous follistatin; some products claim to upregulate endogenous production via mTOR or phytochemical pathways
- Direct myostatin and activin inhibition via receptor binding. Exogenous follistatin-344 competes with endogenous ligands
- Only injectable administration provides the exogenous follistatin molecule required for receptor antagonism
- Dosing Evidence
- No peer-reviewed studies demonstrate efficacy of oral follistatin-344 in humans or animal models
- Animal studies use 50–200 mcg/kg subcutaneously; limited human data exists but follows injectable protocols exclusively
- All published research uses injectable delivery
- Storage Requirements
- Oral products stored at room temperature; amino acid precursors and phytochemicals are shelf-stable
- Lyophilised powder stored at −20°C; reconstituted solution refrigerated at 2–8°C and used within 28 days
- Injectable products require cold-chain handling but preserve peptide integrity
- Preparation Complexity
- None. Capsule or powder taken orally with water
- Requires reconstitution with bacteriostatic water, sterile technique, and subcutaneous injection skill
- Injectable requires more preparation but ensures peptide reaches its target
- Cost per Dose
- $1.50–$4.00 per serving (oral supplements)
- $8–$15 per injection (based on 100 mcg dose from research-grade lyophilised powder)
- Oral products are cheaper but deliver no active follistatin-344; injectable cost reflects actual bioavailability
- This comparison clarifies a foundational point: oral and injectable follistatin-344 are not two methods of delivering the same compound. They are categorically different products. One is a marketing construct built around precursor supplementation and endogenous upregulation theory; the other is a research-grade glycoprotein synthesized through exact amino acid sequencing and delivered via the only route that bypasses gastric degradation.