CJC-1295 + Ipamorelin Reconstitution Chart (Every Vial Size)

Overview of Reconstitution Mathematics for Lyophilized Peptide Blends

In preclinical research environments, lyophilized peptide blends must be reconstituted with exact diluent volumes to yield consistent working concentrations. CJC-1295 (a synthetic growth-hormone-releasing hormone [GHRH] analog) and Ipamorelin (a selective growth hormone secretagogue receptor agonist) are frequently co-lyophilized in 1:1 mass ratios (such as 5 mg + 5 mg in a 10 mg total blend). Establishing uniform volumetric concentrations ensures accurate micro-pipetting, precise dosing calculations for animal models, and repeatable mass spectrometry analysis.

When handling synthetic peptide blends, investigators must account for total lyophilized mass, solvent volume, and liquid volume displacement. Because high-purity lyophilized cake dissolved in 1.0 to 5.0 mL of reconstituting diluent introduces negligible volume expansion, liquid concentration is determined directly by dividing total peptide mass by diluent volume. To explore catalog specifications for other research compounds, consult our full index of all peptides.

CJC-1295 + Ipamorelin Master Reconstitution Reference Chart

The table below outlines calculated solution parameters across common laboratory vial sizes (5 mg, 10 mg, and 15 mg total peptide blends) and diluent addition volumes (1.0 mL, 2.0 mL, 2.5 mL, 3.0 mL, and 5.0 mL). Concentration is expressed in total milligrams per milliliter (mg/mL), alongside the calculated yield per 0.1 mL (equivalent to 10 graduations on a standard U-100 1.0 mL laboratory syringe).

Vial Size: 5 mg Total Blend (2.5 mg CJC-1295 / 2.5 mg Ipamorelin) • Diluent: 1.0 mL | Total Conc: 5.00 mg/mL | Conc per 0.1 mL: 0.50 mg total (0.25 mg CJC / 0.25 mg Ipam) • Diluent: 2.0 mL | Total Conc: 2.50 mg/mL | Conc per 0.1 mL: 0.25 mg total (0.125 mg CJC / 0.125 mg Ipam) • Diluent: 2.5 mL | Total Conc: 2.00 mg/mL | Conc per 0.1 mL: 0.20 mg total (0.10 mg CJC / 0.10 mg Ipam) • Diluent: 5.0 mL | Total Conc: 1.00 mg/mL | Conc per 0.1 mL: 0.10 mg total (0.05 mg CJC / 0.05 mg Ipam)

Vial Size: 10 mg Total Blend (5.0 mg CJC-1295 / 5.0 mg Ipamorelin) • Diluent: 1.0 mL | Total Conc: 10.00 mg/mL | Conc per 0.1 mL: 1.00 mg total (0.50 mg CJC / 0.50 mg Ipam) • Diluent: 2.0 mL | Total Conc: 5.00 mg/mL | Conc per 0.1 mL: 0.50 mg total (0.25 mg CJC / 0.25 mg Ipam) • Diluent: 2.5 mL | Total Conc: 4.00 mg/mL | Conc per 0.1 mL: 0.40 mg total (0.20 mg CJC / 0.20 mg Ipam) • Diluent: 5.0 mL | Total Conc: 2.00 mg/mL | Conc per 0.1 mL: 0.20 mg total (0.10 mg CJC / 0.10 mg Ipam)

Vial Size: 15 mg Total Blend (7.5 mg CJC-1295 / 7.5 mg Ipamorelin) • Diluent: 1.0 mL | Total Conc: 15.00 mg/mL | Conc per 0.1 mL: 1.50 mg total (0.75 mg CJC / 0.75 mg Ipam) • Diluent: 2.0 mL | Total Conc: 7.50 mg/mL | Conc per 0.1 mL: 0.75 mg total (0.375 mg CJC / 0.375 mg Ipam) • Diluent: 3.0 mL | Total Conc: 5.00 mg/mL | Conc per 0.1 mL: 0.50 mg total (0.25 mg CJC / 0.25 mg Ipam) • Diluent: 5.0 mL | Total Conc: 3.00 mg/mL | Conc per 0.1 mL: 0.30 mg total (0.15 mg CJC / 0.15 mg Ipam)

For non-standard vial masses or custom reconstituting target values, researchers can utilize our automated interactive reconstitution calculator to compute precise volumetric parameters.

Reconstitution Mathematics: Core Formulas and Worked Calculations

To calculate working concentration accurately, primary lab personnel apply standard dilution equations based on mass and volume. The core mathematical formula is defined as: Concentration (C) = Total Lyophilized Mass (M) / Volumetric Diluent (V) Where C is expressed in mg/mL, M is in milligrams (mg), and V is in milliliters (mL). To determine the mass contained within a specific aliquot volume (Va): Aliquot Mass (Ma) = Concentration (C) x Aliquot Volume (Va)

Worked Example 1: A researcher reconstitutes a 10 mg blend vial (containing 5 mg CJC-1295 No DAC and 5 mg Ipamorelin) with 2.5 mL of bacteriostatic water. Step 1: C = 10 mg / 2.5 mL = 4.0 mg/mL total peptide concentration. Step 2: To calculate the peptide content in a 0.05 mL aliquot (5 units on a U-100 syringe), Ma = 4.0 mg/mL x 0.05 mL = 0.20 mg total peptide (0.10 mg CJC-1295 + 0.10 mg Ipamorelin).

Worked Example 2: An investigator requires a working solution where each 0.1 mL aliquot yields exactly 250 mcg (0.25 mg) of total peptide from a 5 mg blend vial. Step 1: Required concentration C = 0.25 mg / 0.1 mL = 2.5 mg/mL. Step 2: Required diluent volume V = Total Mass (5 mg) / Target C (2.5 mg/mL) = 2.0 mL diluent addition. Understanding these calculations prevents analytical error during in vitro assay prep.

Diluent Selection: Bacteriostatic Water vs. Sterile 0.9% Sodium Chloride

Choosing the correct reconstituting solvent directly impacts the chemical stability, solubility, and shelf-life of reconstituted CJC-1295 and Ipamorelin solutions. Bacteriostatic Water for Injection (sterile water containing 0.9% benzyl alcohol as a preservative) is the primary standard for multi-use research protocols. Benzyl alcohol inhibits bacterial proliferation, permitting repeated aliquot sampling from a single sealed septum over a 28-day study window when stored at 2°C to 8°C.

Alternatively, sterile 0.9% Sodium Chloride (normal saline) may be utilized for short-term single-use in vitro assays or cell culture treatments where benzyl alcohol might interfere with sensitive biological systems. However, unpreserved saline solutions lack antimicrobial agents and must be consumed or discarded immediately after primary reconstitution. For detailed solvent handling parameters, review our guide on bacteriostatic water reconstitution.

Aseptic Laboratory Reconstitution Procedure

To maintain analytical validity, reconstitution must occur within a laminar flow hood or controlled aseptic environment following standard operating protocols:

1. Disinfect the rubber stoppers of both the lyophilized peptide vial and the diluent vial using 70% isopropyl alcohol wipes. Allow surfaces to air dry completely. 2. Draw the exact calculated volume of diluent (e.g., 2.0 mL bacteriostatic water) using a sterile analytical syringe fitted with a 21G to 25G needle. 3. Insert the needle through the center of the peptide vial's septum at a 45-degree angle. Direct the stream of diluent down the glass interior wall of the vial rather than shooting liquid directly onto the lyophilized cake. 4. Equalize internal vial pressure by allowing excess vacuum or positive pressure to stabilize through the syringe barrel before withdrawing the needle. 5. Gently swirl the vial in a smooth circular motion until the cake dissolves completely into a clear, colorless solution. Never shake or agitate vigoriously, as mechanical shear stress can denature delicate peptide chains.

Volumetric Measurements and Syringe Calibration for Micro-Aliquots

Accurate micro-volume withdrawal relies on selecting appropriate analytical equipment. Standard U-100 syringes (1.0 mL capacity with 100 graduation markings) are calibrated such that 1 graduation unit equals precisely 0.01 mL (10 microliters). Consequently, 10 units equal 0.10 mL, and 50 units equal 0.50 mL.

When transferring small liquid fractions into cell assays or test vessels, researchers must account for dead-space volume within the needle hub. Zero-dead-space integrated micro-syringes or high-precision laboratory pipettes are recommended for volumetric extractions under 0.05 mL to prevent volume loss and ensure dosing fidelity across experimental replicates.

Comparative Analysis: GHRH & GHSR Class Peptides

CJC-1295 and Ipamorelin represent two distinct molecular classes within growth hormone secretagogues. Below is a comparative baseline of related research peptides studied for growth hormone axis modulation:

• CJC-1295 No DAC: A 30-amino acid modified GHRH analog (Modified GRF 1-29) engineered for selective binding to the GHRH receptor, exhibiting a plasma half-life of approximately 30 minutes in preclinical animal models. • Ipamorelin: A pentapeptide (Aib-His-D-Mrp-Phe-Lys-NH2) selective ghrelin/growth hormone secretagogue receptor (GHSR-1a) agonist that stimulates pulsatile GH release without elevating plasma cortisol or prolactin levels. • Tesamorelin: A stabilized 44-amino acid GHRH analog possessing a trans-3-hexenoic acid group, studied for potent pituitary GHRH receptor activation and lipolytic pathways. • GHRP-6: A first-generation hexapeptide ghrelin mimetic that activates GHSR-1a, though preclinical data indicate concomitant stimulation of ACTH and prolactin pathways.

Molecular Properties and Synergistic Dual-Receptor Mechanism

CJC-1295 is studied as a long-acting growth-hormone-releasing hormone (GHRH) analog that sustains GH and downstream insulin-like growth factor 1 (IGF-1) levels for tissue repair research. By substituting specific amino acids at positions 2, 8, 15, and 27 relative to native GHRH(1-29), the peptide resists enzymatic cleavage by dipeptidyl peptidase-IV (DPP-IV), dramatically enhancing stability in experimental assays.

Ipamorelin acts via an entirely distinct signaling cascade, binding selectively to the growth hormone secretagogue receptor (GHSR-1a). Preclinical studies suggest that co-administration of a GHRH agonist (CJC-1295) alongside a GHSR agonist (Ipamorelin) produces a synergistic elevation in total GH output. The dual activation stimulates endogenous pituitary GH release at magnitude levels significantly higher than sum of either compound administered individually in vitro or in rodent models.

PX1 Research Quality Verification: HPLC, MS, and Endotoxin Standards

Reliable research outcomes demand verified chemical purity. PX1 Research manufactures all research compounds within state-of-the-art USA facilities adhering to strict GMP-compliant standards. Every single lot undergoes comprehensive analytical verification at an independent ISO 17025 accredited laboratory prior to release.

Quality control protocols mandate High-Performance Liquid Chromatography (HPLC) testing to confirm greater than 99% peptide purity, alongside Mass Spectrometry (MS) to verify exact molecular weight and amino acid sequence identity. Furthermore, all lots undergo kinetic chromogenic LAL assays to ensure endotoxin levels remain strictly below regulatory thresholds (<0.05 EU/mg). Batch-specific assay documentation is fully accessible through our public COA verification portal.

Storage, Degradation Prevention, and Reconstituted Stability

Lyophilized CJC-1295 + Ipamorelin blend vials should be stored unopened in a commercial freezer at -20°C to -80°C, protected from light exposure, where they remain chemically stable for up to 24 months. Desiccant containers should be utilized to prevent moisture absorption prior to initial reconstituting procedures.

Once reconstituted with preserved bacteriostatic water, vials must be stored under refrigeration at 2°C to 8°C and evaluated within 28 days. Avoid repeated freeze-thaw cycles of reconstituted liquid solutions, as ice crystal formation fractures peptide tertiary structures and leads to severe peptide degradation. Laboratory accounts requiring bulk supply for long-term study protocols can learn more via our wholesale lab portal.