How blend maths works
Each peptide in the vial has its own concentration, but you can only draw them together. So one draw volume fixes every amount at once:
concentration of each = its mg in the vial ÷ water (mL)
amount per dose = that concentration × volume drawn (mL)
Worked example: GLOW
A vial with 50 mg GHK-Cu + 10 mg BPC-157 + 10 mg TB-500 mixed with 3 mL. To get 1 mg of GHK-Cu (16.67 mg/mL) you draw 0.06 mL, which is 6 units. That same draw holds 0.2 mg (200 mcg) each of BPC-157 and TB-500.
Things to watch
- Confirm whether the label amount is per peptide or for the whole vial.
- The ratio is fixed. If you want a different ratio, you need separate vials, and the single-peptide calculator.
- Small draws get hard to measure. If you’re under 5 units, add more water (the BAC water calculator helps).
Questions
How do I dose a BPC-157 and TB-500 blend?
In a blend, every draw contains both peptides in the same ratio as the vial. With 5 mg of each in 2 mL of water, 10 units (0.1 mL) holds 250 mcg of BPC-157 and 250 mcg of TB-500. You can't change one without the other.
My vial says 10 mg. Is that each peptide or the total?
Labels differ, and it matters: “10 mg” can mean 10 mg total (for example 5 + 5) or 10 mg of each. The same draw then holds half or double the amount. Check the label or the certificate of analysis for the split before you calculate.
What is in GLOW and KLOW blends?
They are usually sold as GHK-Cu with BPC-157 and TB-500 (GLOW, commonly 50 + 10 + 10 mg) and the same plus KPV (KLOW, commonly 50 + 10 + 10 + 10 mg). Splits vary by maker, so use the amounts on your own vial.
Can I base the dose on one peptide in the blend?
Yes. Choose “I want a dose of one peptide”, pick which one, and enter the amount. The calculator gives the units to draw and shows how much of every other peptide comes along with it.