--- title: "Follistatin-344 Dosage Guide [2026] | BodyHackGuide" url: https://www.bodyhackguide.co/guides/dosage/follistatin-344 description: "Complete Follistatin-344 dosage guide with protocols, calculator, safety info, and where to buy. Updated for 2026." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Myostatin Inhibitor Preclinical / Research peptide # Follistatin-344 Dosage Guide: Protocols, Calculator & Safety Everything you need to know about Follistatin-344 dosing: protocols and safety. Dose Range 50-100 mcg Frequency Once daily Cycle Length 4-6 weeks per cycle, 4-week washout Half-Life Short; native follistatin protein is cleared rapidly (minutes to a few hours in vivo). No formal pharmacokinetic data exist for injected Follistatin-344 (FST-344). ## Administration Routes Subcutaneous Intramuscular ### Quick Reconstitution Calculator Calculate syringe units instantly Syringe Draw 10.0 units 2500 mcg/ml · 0.100 ml draw Full Tool (https://www.bodyhackguide.co/tools/reconstitution) For laboratory research use only. This tool performs reconstitution math (concentration and syringe-unit conversion) and is not dosing guidance for humans or animals. ## Dosing Protocols Beginner 50 mcg subcutaneous once daily for 4 weeks. Assess strength/mass changes at end of cycle. Standard 75-100 mcg subcutaneous once daily for 6 weeks. Combine with progressive resistance training for synergy. Advanced 100 mcg subcutaneous once daily for 6 weeks, with 4-week washout. Some advanced protocols use BID dosing during cutting phases. ## Commonly Stacked With Stacks with CJC-1295 (https://www.bodyhackguide.co/compound/cjc-1295) + Ipamorelin (https://www.bodyhackguide.co/compound/ipamorelin) for GH-driven hypertrophy + myostatin antagonism. Pair with BPC-157 (https://www.bodyhackguide.co/compound/bpc-157) for tendon support during rapid muscle gain. Avoid stacking with Activin-receptor antagonists (additive effects on TGF-beta family). ## Side Effects & Safety Limited human safety data. Anecdotal AEs: injection site irritation, mild water retention, transient blood pressure changes. Theoretical concerns: cardiac muscle hypertrophy with prolonged use, off-target inhibition of other TGF-beta family members affecting wound healing or immune function. Contraindications Active malignancy. Pregnancy and breastfeeding. Cardiomyopathy or left ventricular hypertrophy. Active wound healing or post-surgical recovery (TGF-beta inhibition concerns). Prohibited in sport. The World Anti-Doping Agency 2026 Prohibited List, in force from 1 January 2026, lists myostatin-binding proteins including follistatin under section S4.3, agents preventing activin receptor IIB activation. Check interactions with the Interaction Checker → (https://www.bodyhackguide.co/tools/interaction-checker) ## Additional Notes Reconstitute with bacteriostatic water. A 1mg vial + 1mL BAC water = 1000 mcg/mL. 5 units = 50 mcg on a 100-unit insulin syringe. ## Frequently Asked Questions What is the recommended Follistatin-344 dosage? The typical dose range for Follistatin-344 is 50-100 mcg. It is usually administered Once daily. Always start with the lowest effective dose. How often should I take Follistatin-344? Once daily Does Follistatin-344 need to be cycled? Yes, typical cycle length is 4-6 weeks per cycle, 4-week washout. What are Follistatin-344 side effects? Where can I buy Follistatin-344? Visit our vendor directory to compare the vendors we track and their Trust Scores. Follistatin-344 Full Profile Research data, mechanisms, and pricing https://www.bodyhackguide.co/compound/follistatin-344 Interaction Checker Check drug & compound interactions https://www.bodyhackguide.co/tools/interaction-checker Free 2026 Peptide Cheat Sheet (PDF) 38 compounds and blends: vial sizes, BAC water volumes, dosing ranges and bloodwork markers. Download Free (https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download) BodyHackGuide (https://www.bodyhackguide.co/) Your biohacking research hub: compound pricing, brain health protocols, dosing tools, and vendor reviews. support@bodyhackguide.co Join our Discord: https://discord.gg/Mhq5UdRYBA r/BodyHackGuide on Reddit: https://reddit.com/r/BodyHackGuide **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology). Full details in our affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). **Research Disclaimer:** All compounds listed are for laboratory and research purposes only. Not for human consumption. This site does not sell or ship any products. Always consult a qualified healthcare professional and comply with local regulations. © 2026 BodyHackGuide. All rights reserved. - Terms: https://www.bodyhackguide.co/terms - Privacy: https://www.bodyhackguide.co/privacy ## Structured data ```json [ { "@context": "https://schema.org", "@type": "Article", "headline": "Follistatin-344 Dosage Guide [2026]", "description": "Complete Follistatin-344 dosage guide with protocols, calculator, safety info, and where to buy. 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