--- title: "Ostarine Dosage Guide [2026] | BodyHackGuide" url: https://www.bodyhackguide.co/guides/dosage/ostarine description: "Complete Ostarine (Enobosarm, MK-2866) 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) Performance Phase 3 # Ostarine (Enobosarm, MK-2866) Dosage Guide: Protocols, Calculator & Safety Everything you need to know about Ostarine (Enobosarm, MK-2866) dosing: protocols, safety, and where to buy. Half-Life Not established from a retrieved human report; in rats the mean elimination half-life of radiolabeled GTx-024 was 0.6 h in males and 16.4 h in females (PMID: 24074268). Human plasma pharmacokinetics were characterized in phase 1 drug-interaction studies (PMID: 27105861) ## Administration Routes Oral Dosage Calculator Calculate exact dosing for Ostarine (Enobosarm, MK-2866). https://www.bodyhackguide.co/tools/dosage Dosing data for Ostarine (Enobosarm, MK-2866) is being researched. Check the compound page (https://www.bodyhackguide.co/compound/ostarine) for the latest information. ## Side Effects & Safety Published human case reports describe cholestatic and hepatocellular drug-induced liver injury after ostarine use, including severe jaundice needing albumin dialysis with recovery over roughly six months (PMID: 37871633), a hepatocellular case that resolved on stopping (PMID: 35655632), and cases where ostarine was combined with post-cycle drugs (PMID: 34141767). A systematic review of SARM safety in healthy adults found fifteen published drug-induced liver injury cases across the class plus one Achilles tendon rupture and one rhabdomyolysis case, and reported raised alanine aminotransferase in about 7 percent of trial participants exposed to a SARM (PMID: 37218811). In the phase 2 breast cancer trial, grade 3 or 4 drug-related events included raised hepatic transaminases, hypercalcemia and fatigue (PMID: 38342115). In cultured cardiomyocytes ostarine showed sex-specific cytotoxicity (PMID: 37543162). Contraindications Mechanism-based: androgen receptor agonists are contraindicated in pregnancy because of the risk of virilizing a female fetus, and in men with known or suspected prostate cancer, since androgen receptor activation can drive prostate tissue. Existing liver disease or raised transaminases is a mechanism-based and case-report-based reason to avoid it, given published cholestatic and hepatocellular injury (PMID: 37871633, PMID: 35655632). Athletes in tested sport must avoid it because it is prohibited at all times (PMID: 38499138). Check interactions with the Interaction Checker → (https://www.bodyhackguide.co/tools/interaction-checker) ## Frequently Asked Questions What is the recommended Ostarine (Enobosarm, MK-2866) dosage? Dosage for Ostarine (Enobosarm, MK-2866) varies by protocol. Consult a qualified healthcare provider. How often should I take Ostarine (Enobosarm, MK-2866)? Administration frequency depends on the specific protocol. Consult current research literature. Does Ostarine (Enobosarm, MK-2866) need to be cycled? Cycling requirements depend on the protocol. Follow established research guidelines. What are Ostarine (Enobosarm, MK-2866) side effects? Where can I buy Ostarine (Enobosarm, MK-2866)? Compare 1 listings from 1 vendor on our price comparison page, starting from $74.99. Ostarine (Enobosarm, MK-2866) Full Profile Research data, mechanisms, and pricing https://www.bodyhackguide.co/compound/ostarine Interaction Checker Check drug & compound interactions https://www.bodyhackguide.co/tools/interaction-checker ## Related Dosage Guides All Guides (https://www.bodyhackguide.co/guides) ### ITPP Performance · Dosage Guide https://www.bodyhackguide.co/guides/dosage/itpp ### PEG-MGF Performance · Dosage Guide https://www.bodyhackguide.co/guides/dosage/peg-mgf ### SLU-PP-332 Performance · Dosage Guide https://www.bodyhackguide.co/guides/dosage/slu-pp-332 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) Image: BodyHackGuide (https://www.bodyhackguide.co/assets/bodyhackguide-logo-DOzZNUyh.webp) ### BodyHackGuide 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 #### Explore - Compare prices: https://www.bodyhackguide.co/compare - Vendors: https://www.bodyhackguide.co/vendors - Deals: https://www.bodyhackguide.co/deals - Coupons: https://www.bodyhackguide.co/coupons - Nootropics: https://www.bodyhackguide.co/nootropics - Brain health: https://www.bodyhackguide.co/brain-health - Blog: https://www.bodyhackguide.co/blog - Guides: https://www.bodyhackguide.co/guides #### Tools - Reconstitution: https://www.bodyhackguide.co/tools/reconstitution - Half-life visualizer: https://www.bodyhackguide.co/tools/halflife - COA reader: https://www.bodyhackguide.co/tools/coa - Cost calculator: https://www.bodyhackguide.co/tools/cost-calculator - Stack builder: https://www.bodyhackguide.co/stack-builder - All tools: https://www.bodyhackguide.co/tools #### Trust & vendors - Vendor directory: https://www.bodyhackguide.co/vendors - Trust scorecard: https://www.bodyhackguide.co/vendors/scorecard - Vendor trust badge: https://www.bodyhackguide.co/vendors/get-vetted - Scoring methodology: https://www.bodyhackguide.co/vendors/methodology - Peptide cheat sheet: https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download #### Company - About: https://www.bodyhackguide.co/about - Affiliate disclosure: https://www.bodyhackguide.co/affiliate-disclosure - Editorial standards: https://www.bodyhackguide.co/editorial-standards - Creators: https://www.bodyhackguide.co/creators - Coaches: https://www.bodyhackguide.co/coaches - 1-on-1 coaching: https://www.bodyhackguide.co/coaching - Privacy: https://www.bodyhackguide.co/privacy - Terms: https://www.bodyhackguide.co/terms - Full site directory: https://www.bodyhackguide.co/site-directory **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology), and we earn a commission from purchases made through some of our links at no extra cost to you. 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": "Ostarine Dosage Guide [2026]", "description": "Complete Ostarine (Enobosarm, MK-2866) dosage guide with protocols, calculator, safety info, and where to buy. 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