Compliance & Medical Disclaimer

This article is for informational and educational purposes only and does not constitute medical, legal, regulatory, or professional advice. The compounds discussed are research chemicals not approved for human consumption by the US FDA, European Medicines Agency (EMA), UK MHRA, Australian TGA, Health Canada, or any other major regulatory authority. They are sold strictly for laboratory research use. WolveStack does not employ medical staff, does not diagnose, treat, or prescribe, and makes no health claims under FTC, UK ASA, EU MDR/UCPD, or AU TGA standards. Always consult a licensed healthcare professional in your jurisdiction before considering any peptide protocol. This site contains affiliate links (FTC 2023 endorsement guidelines compliant); we may earn a commission on qualifying purchases at no additional cost to you. Some compounds discussed are on the WADA prohibited list — competitive athletes should verify current status with their governing body before any research use. Use of research chemicals may be illegal in your jurisdiction.

IMPORTANT: This compound is currently on the World Anti-Doping Agency (WADA) prohibited list. Competitive athletes face sanctions for use including in retirement testing programs. Verify current WADA status with your sport's governing body before any research involvement.

Reviewed by: WolveStack Research Team
Last reviewed: 2026-04-28
Editorial policy

Editorial review process: WolveStack Research Team — collective expertise in peptide pharmacology, regulatory science, and research literature analysis. We synthesize peer-reviewed studies, regulatory filings, and clinical trial data; we do not provide medical advice or treatment recommendations. Content is reviewed and updated as new evidence emerges.

Medical Disclaimer

For informational and educational purposes only. Not FDA-approved for human use. Consult a licensed healthcare professional. See full disclaimer.

Reconstitute lyophilized hexarelin by adding 1-2 mL of bacteriostatic water to the powder vial, letting it settle 5 minutes, then gently swirling until fully dissolved (100 mcg/mL concentration). Store reconstituted solution at 2-8°C and discard after 14 days. Maintain strict aseptic technique to prevent contamination.

Preparation Before Reconstitution

Gather all materials in a clean, sterile environment: hexarelin powder vial, bacteriostatic water (0.9% NaCl with 0.9% benzyl alcohol), sterile syringes (1 mL or 3 mL), sterile needles (23-25 gauge for drawing water), alcohol swabs, and a clean work surface. Wash your hands thoroughly and consider wearing clean nitrile gloves to minimize contamination risk. Verify that bacteriostatic water is not expired and has never been opened.

Never use water for injection (sterile water without benzyl alcohol) as it lacks antimicrobial preservative and increases bacterial contamination risk. Once opened, bacteriostatic water is stable for 28 days when stored properly.

Step-by-Step Reconstitution

Draw the predetermined volume of bacteriostatic water into a sterile syringe (1-2 mL for 100 mcg vial = 100 mcg/mL concentration). Using a sterile needle, inject the water slowly into the hexarelin vial, aiming at the side wall (not directly onto powder) to minimize foaming. Slow injection over 10-15 seconds reduces protein denaturation.

After injection, remove the needle and allow the vial to sit undisturbed for 5 minutes. Do not shake vigorously. After 5 minutes, gently swirl (rotate, don't shake) until powder is fully dissolved. Solution should be clear and colorless. If cloudiness persists after 10 minutes, peptide may be damaged; discard and reconstitute fresh.

Concentration Accuracy and Dosing Calculations

Standard: 100 mcg powder + 1 mL water = 100 mcg/mL. If using 2 mL water, concentration is 50 mcg/mL (requires double volume per injection). For 100 mcg injection: draw 1 mL from 100 mcg/mL solution. For 150 mcg: draw 1.5 mL. Use a tuberculin (1 mL) syringe for accuracy with small volumes. Always double-check math before injection to prevent overdose.

Common dosing: 100-200 mcg per injection = 1-2 mL from 100 mcg/mL solution. Mark your target dose on your syringe barrel with a permanent marker for consistency.

Storage and Stability of Reconstituted Solution

Store reconstituted hexarelin at 2-8°C (refrigerator, not freezer) in the original vial with rubber stopper sealed. The solution is stable for 14 days. After 14 days, discard any remaining solution even if it appears clear. Bacterial growth becomes significant after 14 days despite bacteriostatic water preservatives. Mark reconstitution date on vial with permanent marker.

Do not freeze reconstituted solution (freezing denatures peptide). Use a fresh needle for each injection through the rubber stopper; the stopper reseals after needle penetration. Never leave reconstituted solution unrefrigerated for more than 1 hour total.

Safe vs. Unsafe Practices

SAFE: Use sterile supplies, maintain aseptic technique, inject slowly, allow settling, gently swirl, store at 2-8°C, discard after 14 days, use fresh needle per injection. UNSAFE: Shake vigorously (denatures peptide), use non-sterile water (contamination), reuse needles (contamination), room temperature storage (bacterial growth), use after 14 days (contamination), share vials (infection).

Never touch the rubber stopper with bare hands. Never share reconstituted hexarelin with others even if they use separate needles. Never freeze or heat the solution.

Troubleshooting Reconstitution Issues

Cloudy solution: Peptide damaged or water contaminated—discard and start fresh. Powder won't dissolve after 10 minutes: May indicate damage—discard. Foaming during injection: Next time, inject more slowly (15-20 seconds) and aim at vial wall. Visible particles: Water contamination—discard and verify bacteriostatic water integrity.

Cloudiness after storage: Bacterial growth—discard immediately. Difficulty drawing from vial: Pressure imbalance. For each withdrawal, first inject equivalent air volume into vial. If problems persist, discard vial and use fresh reconstitution.

Pre-Injection Final Verification

Before each injection, verify: Solution is clear and colorless, reconstitution date is within 14 days, stored at 2-8°C, using fresh sterile needle, injection site is clean and rotated, syringe is sterile. Never inject if cloudy, past 14 days, or left at room temperature >1 hour. Verify your dose calculation matches your target.

Trusted Research-Grade Sources

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Particle Peptides

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FAQ: Hexarelin Reconstitution

Q: Can I use regular sterile water instead of bacteriostatic?
A: No. Sterile water lacks preservatives and increases bacterial contamination risk after opening.

Q: How long is reconstituted hexarelin stable?
A: 14 days at 2-8°C. After 14 days, discard due to bacterial growth risk.

Q: What if I accidentally shake it vigorously?
A: Some foaming is normal. Allow extra settling time. If solution remains cloudy after 15 min gentle swirling, discard.

Q: Should I pre-fill syringes for the week?
A: Not recommended. Pre-filled syringes expose peptide to plastic and air. Draw fresh before each injection.

Q: What's the difference between saline and bacteriostatic water?
A: Saline is NaCl in sterile water. Bacteriostatic water is saline + benzyl alcohol (preservative). Always use bacteriostatic.

Q: What if the vial looks wet before opening?
A: Don't use it. Contact vendor for replacement. The vial may be contaminated.

Vendor Links

Vendor Notes Link
Ascension Sterile hexarelin vials ascensionpeptides.com/?ref=wolvestack
Particle Fast, reliable particlepeptides.com/?refs=25135
Limitless Good pricing limitlesslifenootropics.com/?affid=10704