Tesa/IPA blend reconstitution explained: how much bacteriostatic water to add, peptide dosage math, storage, and safety notes for research use.
Tesa/IPA blend reconstitution means adding bacteriostatic water to a lyophilized vial of tesamorelin and ipamorelin so the powder dissolves into a measurable liquid. A common 10 mg blend (5 mg tesamorelin + 5 mg ipamorelin) is reconstituted with 1–3 mL of bacteriostatic water, which gives a concentration of 3.3–10 mg/mL. These peptides are sold for laboratory research only and are not approved by the FDA for human use in this combination.
This guide covers supplies, step-by-step mixing, dosage math, storage, and safety considerations for researchers working with a tesa/IPA blend.
What Is a Tesa/IPA Blend?
A tesa/IPA blend combines tesamorelin and ipamorelin in a single lyophilized vial. Tesamorelin is a growth hormone–releasing hormone (GHRH) analog that is FDA-approved under the brand name Egrifta for HIV-associated lipodystrophy. Ipamorelin is a selective growth hormone secretagogue that is not FDA-approved for any human use.
Researchers study these two peptides together because they act on different pathways that influence growth hormone release. Compounded tesa/IPA blends are not FDA-approved, and no published human trials have established their safety or efficacy as a fixed-dose combination.
Community discussions on tesa/ipa blend reddit often focus on reconstitution ratios, injection timing, and side effects. Those anecdotes are not a substitute for clinical evidence, and readers should treat them as personal reports rather than medical guidance.
Supplies Needed for Reconstitution
Gather everything before you open the vial. Working cleanly reduces the risk of contamination and dosing errors.
- Lyophilized tesa/IPA vial (usually 5 mg/5 mg or 10 mg/10 mg)
- Bacteriostatic water (0.9% benzyl alcohol) — typically 10 mL or 30 mL vials
- Alcohol swabs (70% isopropyl)
- Insulin syringes (0.5 mL or 1 mL, 29–31 gauge)
- Sterile venting needle or filter needle (optional)
- Sharps disposal container
If you are wondering is reconstitution solution bacteriostatic water, the answer is yes for most lyophilized peptides. Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits bacterial growth and allows multiple withdrawals from the same vial. Sterile water for injection works too, but it lacks a preservative and should be used within 24 hours after the first puncture.
Step-by-Step Tesa/IPA Blend Reconstitution
The standard tesa ipa blend reconstitution method takes about two minutes. Follow these steps in order.
- Wash your hands and wipe the work surface with an alcohol swab.
- Remove the plastic cap from the peptide vial and the bacteriostatic water vial. Swab both rubber stoppers with alcohol and let them air-dry.
- Draw the desired volume of bacteriostatic water into a syringe. For a 10 mg blend, 2 mL is a common starting point.
- Insert the needle into the peptide vial at a slight angle so the water runs down the glass wall. Do not spray directly onto the powder.
- Swirl the vial gently between your palms. Do not shake it. Shaking can shear the peptide chains and cause foaming.
- Let the vial sit until the powder is fully dissolved. The solution should be clear and colorless. If it looks cloudy or has particles, do not use it.
- Label the vial with the date, peptide name, concentration, and your initials. Store it properly.
Tesa IPA Peptide Dosage and Concentration Math
Concentration is the total peptide mass divided by the total liquid volume. For a 10 mg blend, 2 mL of bacteriostatic water yields 5 mg/mL. Each 0.1 mL (10 units on an insulin syringe) then contains 0.5 mg of total peptide, split evenly between tesamorelin and ipamorelin if the blend is 1:1.
Calculating tesa ipa peptide dosage for research starts with the concentration on your label. Use the table below to see how water volume changes concentration for a 10 mg blend.
| Bacteriostatic water added | Total volume | Concentration | Tesa per 0.1 mL | IPA per 0.1 mL |
|---|---|---|---|---|
| 1 mL | 1 mL | 10 mg/mL | 0.5 mg | 0.5 mg |
| 2 mL | 2 mL | 5 mg/mL | 0.25 mg | 0.25 mg |
| 3 mL | 3 mL | 3.33 mg/mL | 0.17 mg | 0.17 mg |
| 5 mL | 5 mL | 2 mg/mL | 0.1 mg | 0.1 mg |
More water makes small doses easier to measure accurately but requires larger injection volumes. Less water keeps injections small but makes fine adjustments harder. There is no universal correct ratio, and any dosage decision should come from a qualified researcher or clinician.
Storage, Stability, and Handling
Lyophilized tesa/IPA powder should be stored in a freezer at -20°C or colder, away from light. Once reconstituted, the blend should be refrigerated at 2–8°C and used within four to six weeks.
- Never freeze a reconstituted peptide solution. Ice crystals can damage the peptide structure.
- Keep the vial upright and protect it from direct sunlight.
- Swab the stopper with alcohol before every withdrawal.
- Discard the vial if the solution becomes cloudy, changes color, or contains visible particles.
These storage rules apply to most reconstituted research peptides, including blends that combine other compounds.
Safety, Legal Status, and Common Mistakes
Tesamorelin is FDA-approved only as Egrifta for a specific medical condition, and ipamorelin is not FDA-approved for human use. A compounded tesa/IPA blend is a research chemical, not a prescription drug, and it has not been evaluated by the FDA for safety, purity, or effectiveness.
A responsible tesa ipa blend protocol includes sterile technique, accurate measurement, proper storage, and clear record-keeping. It also includes realistic expectations: animal and early human studies do not prove that a peptide blend will produce a specific result in every person.
Common mistakes include shaking the vial, using tap water, reusing needles, guessing at concentrations, and storing the reconstituted blend at room temperature. Each of these errors can ruin the peptide or create a safety risk.
Anyone considering peptide use should talk with a licensed healthcare professional. Self-experimentation with unapproved research chemicals carries unknown risks, including allergic reactions, injection-site problems, and hormonal effects.
Frequently Asked Questions
How much bacteriostatic water do I add to a tesa/IPA blend?
For a 10 mg blend, most researchers add 1–3 mL of bacteriostatic water. Adding 2 mL gives a concentration of 5 mg/mL. The right volume depends on the dose you need to measure and the syringe you plan to use.
How long does reconstituted tesa/IPA blend last in the fridge?
Reconstituted tesa/IPA blend is typically stable for four to six weeks when stored at 2–8°C. Protect it from light and never freeze it. Discard the vial if the solution becomes cloudy.
Is tesa/IPA blend legal to buy in the United States?
Tesamorelin is available by prescription as Egrifta, but compounded tesa/IPA blends are not FDA-approved. Research peptides sold online are labeled for laboratory use only and are not legal to sell as dietary supplements or drugs for human consumption. Buyers should verify their local laws and consult a healthcare professional.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.