TheEngineer
GLP-1 Apprentice
ADDING IPAMORELIN INTO A VIAL OF TESAMORELIN FOR THE PERFECT DOSE WITH LESS PINS.
MATH TO GET 1MG TESA + 200mcg IPA PER DOSE
MATH TO GET 1MG TESA + 200mcg IPA PER DOSE
1. Both peptides form a true solution (not a suspension)
- Tesamorelin and Ipamorelin are acetate salts of peptides. They are highly water-soluble in bacteriostatic water.
- When fully dissolved, the peptide molecules exist as individual molecules (or very small solvated clusters) dispersed among the water molecules.
- This is a true molecular solution, not a suspension of particles that could settle or clump.
- In any liquid at room temperature, molecules are in constant random motion due to thermal energy (this is called Brownian motion).
- This random movement causes molecules to spread from areas of higher concentration to lower concentration until the concentration is identical everywhere in the vial.
- This process is governed by Fick’s laws of diffusion. For peptides of this size in water, the diffusion coefficient is high enough that in a small 2–4 ml vial, complete uniformity is reached in seconds to a few minutes after gentle swirling.
- Swirling creates convection currents that speed up the process even more.
3. There is no mechanism for the peptides to separate again
- Both peptides are hydrophilic (water-loving) and have similar chemical properties in bac water.
- There is no chemical reaction, precipitation, crystallization, or hydrophobic effect that would cause one peptide to clump or separate from the other.
- Gravity has no meaningful effect on dissolved molecules at this scale (they do not “settle” like sand in water).
- Entropy (the natural tendency toward disorder) actually favors the mixed state.
4. Therefore, every accurately measured volume contains the exact proportion
- Concentration = total mass of peptide ÷ total volume of solution.
- Because the solution is homogeneous, any subsample (e.g. 0.2 ml) has the exact same concentration as the whole vial.
- This is why pharmacies can make compounded multi-peptide vials that deliver consistent doses from the first draw to the last.
Exact Math (Step-by-Step)
1. Tesamorelin reconstitution
10 mg Tesamorelin + 1.6 ml bac water
→ Concentration = 10 mg ÷ 1.6 ml = 6.25 mg/ml
2. Ipamorelin reconstitution
10 mg Ipamorelin + 2 ml bac water
→ Concentration = 5 mg/ml
3. Transfer
Add 0.4 ml of the Ipamorelin solution into the Tesamorelin vial.
Amount of Ipamorelin added = 0.4 ml × 5 mg/ml = 2 mg
4. Final mixed vial
o Total Tesamorelin = 10 mg
o Total Ipamorelin = 2 mg
o Total volume = 1.6 ml + 0.4 ml = 2.0 ml
Final concentrations:
o Tesamorelin = 10 mg ÷ 2.0 ml = 5 mg/ml
o Ipamorelin = 2 mg ÷ 2.0 ml = 1 mg/ml
5. Injection draw
Draw 0.2 ml (20 units on a U-100 insulin syringe) from the mixed vial.
What you actually get:
o Tesamorelin = 0.2 ml × 5 mg/ml = 1 mg
o Ipamorelin = 0.2 ml × 1 mg/ml = 0.2 mg = 200 mcg
Perfect 1:1 proportion every single time.