--- title: "PT-141 vs Oxytocin: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/pt-141-vs-oxytocin description: "Compare PT-141 vs Oxytocin side by side. We earn a commission on some vendor links. Mechanism, half-life, dose range, side effects and prices." 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) # PT-141 (Bremelanotide) vs Oxytocin Side-by-side comparison of PT-141 (Bremelanotide) and Oxytocin: mechanism, half-life, dose range, safety profile, and vendor pricing. PT-141 (Bremelanotide) from $34.99 Oxytocin from $34.99 ## Price snapshot ### PT-141 (Bremelanotide) Current low $34.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ### Oxytocin Current low $34.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ## PT-141 (Bremelanotide) PT-141 (bremelanotide) is a cyclic 7-amino-acid synthetic melanocortin receptor agonist that acts centrally in the brain — not peripherally on genital tissue — to improve sexual desire, arousal, and responsiveness. It is… **Lowest listed price:** $34.99 across 5 listings Full PT-141 (Bremelanotide) profile (https://www.bodyhackguide.co/compound/pt-141) ## Oxytocin Oxytocin is a nine-amino-acid cyclic peptide hormone (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2) synthesized in magnocellular neurons of the hypothalamic paraventricular (PVN) and supraoptic nuclei (SON), then transported… **Lowest listed price:** $34.99 across 4 listings Full Oxytocin profile (https://www.bodyhackguide.co/compound/oxytocin) ## Side-by-side comparison | Attribute | PT-141 (Bremelanotide) | Oxytocin | | --- | --- | --- | | Category | Skin, Hair & Aesthetics | Hormones & Endocrine (Non-GH) | | Research Stage | FDA Approved | FDA-Approved | | Mechanism of Action | Melanocortin Receptor Pharmacology PT-141 is a synthetic cyclic heptapeptide (Ac-Nle-cyclo[Asp-His-DPhe-Arg-Trp-Lys]-OH) that binds the melanocortin receptor family with the following selectivity profile: \| Receptor \| Primary Location \| PT-141 Activity \|… | Oxytocin signals primarily through the oxytocin receptor (OXTR), a single G-protein-coupled receptor (GPCR) encoded on chromosome 3p25.3 in humans. OXTR couples predominantly to Gαq/11 signaling, activating phospholipase C, generating IP3 and DAG, raising… | | Half-Life | ~2.7 hours | ~1-6 minutes (plasma); central/behavioral effects outlast plasma clearance, typically ~30-120 minutes after intranasal dosing | | Typical Dose Range | 500–2,000 mcg (0.5–2 mg) per dose | — | | Dosing Frequency | As needed, 45 minutes before sexual activity; max once per 24 hours, max 8 doses/month | As needed (on-demand), timed 20-45 minutes before a target social/intimate window; research protocols have used up to 2-3x daily (commonly 24 IU twice daily) intranasally | | Administration | Subcutaneous | — | | Side Effects | Very Common (10% of users) - Nausea — By far the most common adverse effect, affecting approximately 40% of users in the RECONNECT trials. Usually mild-to-moderate, begins within 30-60 minutes of injection, resolves within 2-4 hours. Can be mitigated with… | Oxytocin has a favorable safety profile at typical behavioral-research doses (intranasal 24-48 IU, subcutaneous 2-10 IU). Most side effects are mild and transient. Common (any oxytocin use): - Mild flushing or warm sensation - transient, reflecting modest… | | Molecular Weight | 1025.2 Da | 1007.19 g/mol | | Common Vial Sizes | 2mg, 10mg | — | ## Price History 5 data points - BM - Half Nattys - Ion Peptide - BHG Labs ## Price History 3 data points - Half Nattys - Ion Peptide - Disguised Alpha ### PT-141 (Bremelanotide): potential benefits - Sexual desire enhancement - HSDD treatment - Erectile dysfunction (central mechanism) - Non-hormonal approach ### Oxytocin: potential benefits - Social and emotional bonding (subtle, context-dependent) - Situational social-anxiety relief - Enhanced intimacy and post-orgasm bonding - Labor induction and milk let-down (approved obstetric use) - Trauma-focused therapy adjunct (investigational) ## Frequently asked ### What's the difference between PT-141 (Bremelanotide) and Oxytocin? PT-141 (Bremelanotide) is a skin, hair & aesthetics that melanocortin receptor pharmacology pt-141 is a synthetic cyclic heptapeptide (ac-nle-cyclo[asp-his-dphe-arg-trp-lys]-oh) that binds the melanocortin receptor family with the…. Oxytocin is a hormones & endocrine (non-gh) that oxytocin signals primarily through the oxytocin receptor (oxtr), a single g-protein-coupled receptor (gpcr) encoded on chromosome 3p25.3 in humans. oxtr couples predominantly to…. The two differ in mechanism, half-life (~2.7 hours vs ~1-6 minutes (plasma); central/behavioral effects outlast plasma clearance, typically ~30-120 minutes after intranasal dosing), and typical dose range. ### Which has the longer half-life, PT-141 (Bremelanotide) or Oxytocin? PT-141 (Bremelanotide) has a half-life of ~2.7 hours. Oxytocin has a half-life of ~1-6 minutes (plasma); central/behavioral effects outlast plasma clearance, typically ~30-120 minutes after intranasal dosing. Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Which is cheaper, PT-141 (Bremelanotide) or Oxytocin? Lowest listed price on BodyHackGuide: PT-141 (Bremelanotide) from $34.99, Oxytocin from $34.99. Prices are pulled from the vendor listings tracked on BHG and change frequently. See the compare tables on each compound page for the current set of offers. ### Can you stack PT-141 (Bremelanotide) and Oxytocin? Stacking depends on mechanism overlap, safety profile, and goals. PT-141 (Bremelanotide) and Oxytocin should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds. ## See current vendor prices Listings from the vendors we track. Prices change often, so check the vendor before you buy. PT-141 (Bremelanotide) prices: https://www.bodyhackguide.co/compound/pt-141?tab=prices Oxytocin prices: https://www.bodyhackguide.co/compound/oxytocin?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy PT-141 (Bremelanotide) or Oxytocin Check the vendor trust score. Every supplier we track is rated 0-100 on COA verification, payment transparency, shipping, reviews, and listings: one published, reproducible methodology, applied to every vendor. View Vendor Scorecard (https://www.bodyhackguide.co/vendors/scorecard) ## Related comparisons PT-141 vs Melanotan Ii: https://www.bodyhackguide.co/compare/pt-141-vs-melanotan-ii **Research use only.** BodyHackGuide is a research and price-comparison reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. Prices shown are pulled from vendor listings tracked on BHG and are subject to change. Every vendor is ranked on the same public, reproducible methodology. See editorial standards (https://www.bodyhackguide.co/editorial-standards) and affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). 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": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co/" }, { "@type": "ListItem", "position": 2, "name": "Compare", "item": "https://www.bodyhackguide.co/compare" }, { "@type": "ListItem", "position": 3, "name": "PT-141 (Bremelanotide) vs Oxytocin" } ] }, { "@context": "https://schema.org", "@type": "WebPage", "name": "PT-141 vs Oxytocin: Side-by-Side Comparison (2026)", "description": "Compare PT-141 vs Oxytocin side by side. We earn a commission on some vendor links. 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