--- title: "Selank Reconstitution Calculator & Syringe-Unit Chart" description: "Free Selank reconstitution calculator + syringe-unit chart. Enter vial mg and BAC water to get concentration (mg/mL) and units on a U-100 syringe scale. For" lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much bacteriostatic water do I add to 5mg of Selank?", "acceptedAnswer": { "@type": "Answer", "text": "The standard preset is to add 2 ml of bacteriostatic water to a 5 mg vial of Selank. This produces a concentration of 2.50 mg/ml (2500 mcg/ml). Adjust the water volume down if you want a more concentrated solution for smaller syringe volumes, or up if you prefer easier-to-read markings." } }, { "@type": "Question", "name": "How do I convert a Selank amount to syringe units after reconstitution?", "acceptedAnswer": { "@type": "Answer", "text": "At a concentration of 2.50 mg/ml, a 250 mcg amount of Selank measures about 10.0 IU (0.100 ml) on a U-100 syringe scale. Divide the amount by the concentration to get the volume in ml, then multiply by 100 to get units. These are reconstitution reference points only, not usage guidance." } }, { "@type": "Question", "name": "How long does reconstituted Selank last in the fridge?", "acceptedAnswer": { "@type": "Answer", "text": "Reconstituted Selank in bacteriostatic water typically remains stable for 14 days refrigerated at 2–8°C (36–46°F). BAC water contains 0.9% benzyl alcohol as a preservative. Never freeze, never leave at room temperature, and discard if the solution becomes cloudy or discolored." } }, { "@type": "Question", "name": "What concentration does 5mg Selank in 2ml water give?", "acceptedAnswer": { "@type": "Answer", "text": "5 mg of Selank reconstituted in 2 ml of BAC water produces a concentration of 2.50 mg/ml, which equals 2500 mcg/ml. At 250 mcg per draw, this vial yields roughly 20 full draws." } }, { "@type": "Question", "name": "Can I use sterile water instead of BAC water for Selank?", "acceptedAnswer": { "@type": "Answer", "text": "You can, but it is not recommended for vials drawn across multiple sessions. Sterile water has no benzyl alcohol preservative, so reconstituted Selank must be used within 24 hours. BAC water allows the vial to last 14 days refrigerated. Use sterile water only if you plan to finish the entire vial in a single session." } }, { "@type": "Question", "name": "Is this a dosage calculator?", "acceptedAnswer": { "@type": "Answer", "text": "It calculates reconstitution and syringe-unit conversion for laboratory research. It does not recommend how much of any compound to use." } }, { "@type": "Question", "name": "How do I read units on a U-100 syringe scale?", "acceptedAnswer": { "@type": "Answer", "text": "A U-100 syringe scale has 100 units per 1 ml, so each unit equals 0.01 ml. For example, at 5 mg/mL, 0.05 ml lines up with 5 units. Multiply any volume in ml by 100 to get units on a U-100 scale." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co" }, { "@type": "ListItem", "position": 2, "name": "Tools", "item": "https://www.bodyhackguide.co/tools" }, { "@type": "ListItem", "position": 3, "name": "Reconstitution Calculator", "item": "https://www.bodyhackguide.co/tools/reconstitution" }, { "@type": "ListItem", "position": 4, "name": "Selank Reconstitution", "item": "https://www.bodyhackguide.co/tools/reconstitution/selank" } ] }, { "@context": "https://schema.org", "@type": "SoftwareApplication", "name": "Selank Reconstitution Calculator", "description": "Free Selank reconstitution calculator. Pre-filled with standard 5mg / 2ml defaults to calculate concentration, syringe units, and draws per vial.", "url": "https://www.bodyhackguide.co/tools/reconstitution/selank", "applicationCategory": "UtilitiesApplication", "operatingSystem": "Any (web-based)", "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" }, "creator": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much bacteriostatic water do I add to 5mg of Selank?", "acceptedAnswer": { "@type": "Answer", "text": "The standard preset is to add 2 ml of bacteriostatic water to a 5 mg vial of Selank. This produces a concentration of 2.50 mg/ml (2500 mcg/ml). Adjust the water volume down if you want a more concentrated solution for smaller syringe volumes, or up if you prefer easier-to-read markings." } }, { "@type": "Question", "name": "How do I convert a Selank amount to syringe units after reconstitution?", "acceptedAnswer": { "@type": "Answer", "text": "At a concentration of 2.50 mg/ml, a 250 mcg amount of Selank measures about 10.0 IU (0.100 ml) on a U-100 syringe scale. Divide the amount by the concentration to get the volume in ml, then multiply by 100 to get units. These are reconstitution reference points only, not usage guidance." } }, { "@type": "Question", "name": "How long does reconstituted Selank last in the fridge?", "acceptedAnswer": { "@type": "Answer", "text": "Reconstituted Selank in bacteriostatic water typically remains stable for 14 days refrigerated at 2–8°C (36–46°F). BAC water contains 0.9% benzyl alcohol as a preservative. Never freeze, never leave at room temperature, and discard if the solution becomes cloudy or discolored." } }, { "@type": "Question", "name": "What concentration does 5mg Selank in 2ml water give?", "acceptedAnswer": { "@type": "Answer", "text": "5 mg of Selank reconstituted in 2 ml of BAC water produces a concentration of 2.50 mg/ml, which equals 2500 mcg/ml. At 250 mcg per draw, this vial yields roughly 20 full draws." } }, { "@type": "Question", "name": "Can I use sterile water instead of BAC water for Selank?", "acceptedAnswer": { "@type": "Answer", "text": "You can, but it is not recommended for vials drawn across multiple sessions. Sterile water has no benzyl alcohol preservative, so reconstituted Selank must be used within 24 hours. BAC water allows the vial to last 14 days refrigerated. Use sterile water only if you plan to finish the entire vial in a single session." } }, { "@type": "Question", "name": "Is this a dosage calculator?", "acceptedAnswer": { "@type": "Answer", "text": "It calculates reconstitution and syringe-unit conversion for laboratory research. It does not recommend how much of any compound to use." } }, { "@type": "Question", "name": "How do I read units on a U-100 syringe scale?", "acceptedAnswer": { "@type": "Answer", "text": "A U-100 syringe scale has 100 units per 1 ml, so each unit equals 0.01 ml. For example, at 5 mg/mL, 0.05 ml lines up with 5 units. Multiply any volume in ml by 100 to get units on a U-100 scale." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co" }, { "@type": "ListItem", "position": 2, "name": "Tools", "item": "https://www.bodyhackguide.co/tools" }, { "@type": "ListItem", "position": 3, "name": "Reconstitution Calculator", "item": "https://www.bodyhackguide.co/tools/reconstitution" }, { "@type": "ListItem", "position": 4, "name": "Selank Reconstitution", "item": "https://www.bodyhackguide.co/tools/reconstitution/selank" } ] }, { "@context": "https://schema.org", "@type": "SoftwareApplication", "name": "Selank Reconstitution Calculator", "description": "Free Selank reconstitution calculator. Pre-filled with standard 5mg / 2ml defaults to calculate concentration, syringe units, and draws per vial.", "url": "https://www.bodyhackguide.co/tools/reconstitution/selank", "applicationCategory": "UtilitiesApplication", "operatingSystem": "Any (web-based)", "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" }, "creator": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" } } ] --- [Skip to content](#main-content) ## Research Use Only This site is an **educational resource** for research compounds. We do **not endorse** human consumption of any compound. BodyHackGuide and **BHG Labs share common ownership**; we rank every vendor on the same public methodology, and we earn a commission on purchases through our links. By entering, you confirm you are **21 years of age or older** and agree to our [Terms](/terms) & [Privacy Policy](/privacy). I'm 21+ — Enter SiteLeave site [![BodyHackGuide](/assets/bodyhackguide-logo-DOzZNUyh.webp)BodyHackGuide ](/) [Compare](/compare)[Wiki](/wiki)[Vendors](/vendors)[Deals](/deals)[Stacks](/stack-builder)[Nootropics](/nootropics)[Tools](/tools) Learn Community Search ⌘K [Sign In](/auth?returnTo=%2Ftools%2Freconstitution%2Fselank) 100K+ researchers trust BodyHackGuide — Join [r/BodyHackGuide](https://reddit.com/r/bodyhackguide) 1. [Home](/) 2. [Tools](/tools) 3. [Reconstitution](/tools/reconstitution) 4. Selank # How to Reconstitute Selank Pre-filled calculator with standard defaults for Selank: 5 mg vial in 2 ml BAC water. ## Standard Selank Reconstitution Protocol Add **2 ml** of bacteriostatic water to a **5 mg** vial of Selank. This gives a concentration of **2.50 mg/ml**. A **250 mcg** amount measures about **10.0 IU** on a U-100 syringe scale. Store refrigerated at 2–8°C and use within **14 days**. Vial Size mg BAC Water ml Target Amount mcg Reset to Selank defaults Concentration 2.50 mg/ml 2500 mcg/ml Volume per Draw 0.100 ml Per draw Syringe Draw 10.0 IU U-100 syringe scale Draws per Vial 20 draws 20.0 exact Draw to 0 10 20 30 40 50 60 70 80 90 100 10.0 units Draw to this line For laboratory research use only. This tool performs reconstitution math (concentration and syringe-unit conversion) and is not dosing guidance for humans or animals. ## Selank Reconstitution Chart Common syringe draws at the standard Selank preset (5 mg in 2 mL BAC water = 2.50 mg/mL). Units are on a **U-100** syringe scale (100 units = 1 mL). For laboratory research reference only. Syringe units (U-100) Volume Amount (Selank) 5 units 0.05 mL 125 mcg 10 units 0.10 mL 250 mcg 15 units 0.15 mL 375 mcg 20 units 0.20 mL 500 mcg 25 units 0.25 mL 625 mcg 30 units 0.30 mL 750 mcg 40 units 0.40 mL 1.00 mg 50 units 0.50 mL 1.25 mg Change the vial size or BAC water above to recompute the chart for a different Selank preset. This chart shows reconstitution math, not a usage recommendation. ## Step-by-Step: How to Reconstitute Selank 1. 1 Gather your supplies A sealed 5 mg vial of Selank, a vial of bacteriostatic water, a 1 ml U-100 syringe, and an alcohol swab. 2. 2 Add the water Wipe both vial stoppers with alcohol. Draw 2 ml of BAC water into the syringe and release it slowly down the inside wall of the Selank vial. Never spray directly onto the powder — the force can damage the peptide. 3. 3 Swirl gently Gently swirl the vial in a circular motion until the Selank fully dissolves. Do not shake. The solution should become clear. 4. 4 Calculate the amount At a concentration of 2.50 mg/ml, a 250 mcg (0.250 mg) amount equals about 10.0 IU on a U-100 syringe scale. 5. 5 Draw and store Draw the amount you need, then immediately return the vial to the refrigerator at 2–8°C. Use the reconstituted vial within 14 days. These defaults reflect commonly referenced reconstitution presets for Selank. Individual research setups may differ. Always verify the concentration against your source and its certificate of analysis. BodyHackGuide publishes for laboratory research and educational purposes only. ## Selank Reconstitution FAQ ### How much bacteriostatic water do I add to 5mg of Selank? ### How do I convert a Selank amount to syringe units after reconstitution? ### How long does reconstituted Selank last in the fridge? ### What concentration does 5mg Selank in 2ml water give? ### Can I use sterile water instead of BAC water for Selank? ### Is this a dosage calculator? ### How do I read units on a U-100 syringe scale? ### More Selank Resources [Selank compound page ](/compound/selank)[General reconstitution calculator ](/tools/reconstitution)[Verify your Selank COA ](/tools/coa) [Read the full reconstitution guide: how to reconstitute peptides step by step ](/guides/how-to-reconstitute-peptides) ![BodyHackGuide](/assets/bodyhackguide-logo-DOzZNUyh.webp) ### BodyHackGuide Your biohacking research hub — compound pricing, brain health protocols, dosing tools, and vendor reviews. 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