Use this GLOW calculator to turn a GLOW blend vial, your bacteriostatic water volume, and a dose into the exact mL and units to draw — and to see how much GHK-Cu, BPC-157 and TB-500 each draw delivers. This page covers the math only; GLOW is a research blend, not an approved medicine.
- Common vial
- 70 mg blend
- Typical label
- 50 + 10 + 10 mg
- Common syringe
- U-100 insulin
- Last reviewed
Quick answers: GLOW doses in units
With a 70 mg vial mixed with 3.5 mL of bacteriostatic water (20 mg/mL), on a U-100 insulin syringe:
- How many units is 1.75 mg of GLOW?
- 8.8 units (0.09 mL)
Educational maths only, not a dose recommendation. Use the calculator above for your own vial, water volume and syringe.
Quick math example
A 70 mg GLOW vial mixed with 3.5 mL gives 20 mg/mL. A 2 mg total dose is 0.1 mL, which equals 10 units on a U-100 syringe.
What is in a GLOW vial
GLOW is a three-peptide blend sold in a single vial, most commonly labelled as 50 mg GHK-Cu, 10 mg BPC-157 and 10 mg TB-500, for 70 mg in total. Labels vary between suppliers, so check the amounts printed on your own vial before you calculate.
Every draw contains all three peptides in the labelled ratio. With the common 50/10/10 label, GHK-Cu is about 71.4% of each draw and BPC-157 and TB-500 are about 14.3% each.
- GHK-Cu 50 mg (71.4%) · BPC-157 10 mg (14.3%) · TB-500 10 mg (14.3%)
- Total = 70 mg — enter this as the vial amount
- The ratio is fixed: one draw always contains all three
GLOW peptide dosage chart: what each draw contains
GLOW doses are usually sized from one of its three peptides — most often BPC-157 at 250 to 500 mcg, or GHK-Cu at 1 to 2 mg — which puts the total blend dose at roughly 1.4 to 3.5 mg a day in community protocols. GLOW is a research blend with no approved use and those figures are not from a label, so this page does not recommend a dose.
The chart lists each blend dose next to what it delivers of each peptide on the common 50/10/10 mg label, then the units to draw at three water volumes. If your label differs, the per-peptide split changes but the units for a given total do not.
- 70 mg + 3.5 mL = 20 mg/mL → 1.75 mg blend = 8.75 units
- 1.75 mg blend = 1.25 mg GHK-Cu + 250 mcg BPC-157 + 250 mcg TB-500
- 3.5 mg blend = 2.5 mg GHK-Cu + 500 mcg BPC-157 + 500 mcg TB-500
GLOW peptide dosage chart in U-100 units (50/10/10 mg vial)
| DoseGHK-Cu · BPC-157 · TB-500 | 70 mg + 3.5 mL20 mg/mL | 70 mg + 3 mL23.33 mg/mL | 70 mg + 2 mL35 mg/mL |
|---|---|---|---|
| 1.4 mg1 mg · 200 mcg · 200 mcg | 7 u(0.07 mL)50 per vial | 6 u(0.06 mL)50 per vial | 4 u(0.04 mL)50 per vial |
| 1.75 mg1.25 mg · 250 mcg · 250 mcg | 8.8 u(0.09 mL)40 per vial | 7.5 u(0.08 mL)40 per vial | 5 u(0.05 mL)40 per vial |
| 2.1 mg1.5 mg · 300 mcg · 300 mcg | 10.5 u(0.11 mL)33 per vial | 9 u(0.09 mL)33 per vial | 6 u(0.06 mL)33 per vial |
| 2.8 mg2 mg · 400 mcg · 400 mcg | 14 u(0.14 mL)25 per vial | 12 u(0.12 mL)25 per vial | 8 u(0.08 mL)25 per vial |
| 3.5 mg2.5 mg · 500 mcg · 500 mcg | 17.5 u(0.18 mL)20 per vial | 15 u(0.15 mL)20 per vial | 10 u(0.1 mL)20 per vial |
Swipe the table to see every vial →
Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100); “per vial” is how many of that dose the vial holds, before the small dead-space loss on each draw. Confirm against your own vial label, diluent, and clinician or pharmacy instructions.
See also: KLOW peptide dosage calculator · GHK-Cu dosage chart
How the GLOW calculation works
Enter the vial's total milligrams (70 mg for the common label), your water volume, and the total amount of blend per dose. The calculator returns concentration, mL and syringe units as it would for a single peptide.
To see what one draw contains, multiply the total by each peptide's share. A 1.75 mg draw is 1.25 mg GHK-Cu (1.75 × 50/70) and 250 mcg each of BPC-157 and TB-500 (1.75 × 10/70).
- 70 mg / 3.5 mL = 20 mg/mL of total blend
- 1.75 mg total / 20 mg per mL = 0.0875 mL ≈ 8.75 units
- Per draw: 1.25 mg GHK-Cu + 250 mcg BPC-157 + 250 mcg TB-500
How much BAC water for a 70 mg GLOW vial
3.5 mL gives a round 20 mg/mL, so every 10 units on a U-100 syringe is 2 mg of blend: about 1.43 mg GHK-Cu and 286 mcg each of BPC-157 and TB-500. 3 mL gives about 23.3 mg/mL and 2 mL gives 35 mg/mL, where 10 units is 3.5 mg of blend.
Check the vial can hold the volume before adding it. A 70 mg vial holds forty 1.75 mg doses, which can outlast the reconstituted beyond-use date, so plan around that date as well as the dose count.
- 70 mg / 3.5 mL = 20 mg/mL → 10 units = 2 mg blend
- 70 mg / 3 mL = 23.3 mg/mL → 10 units ≈ 2.33 mg blend
- 70 mg / 2 mL = 35 mg/mL → 10 units = 3.5 mg blend
Dosing GLOW by one peptide
If your protocol names one component — for example "250 mcg of BPC-157" — divide by that peptide's share to get the total GLOW dose: 250 mcg ÷ (10/70) = 1.75 mg of blend. Enter 1.75 mg as the dose; the GHK-Cu and TB-500 follow in the fixed ratio.
GLOW differs from KLOW only by KPV, but that changes every share, so a draw sized for one blend is wrong for the other. Always calculate from the label on the vial in front of you.
- Total dose = component dose ÷ component share
- 250 mcg BPC-157 ÷ 0.143 ≈ 1.75 mg of GLOW
- KLOW (80 mg, with KPV) has different shares
Frequently asked questions
What is GLOW peptide?
What is the GLOW peptide dosage?
How much BAC water should I add to GLOW?
What is the difference between GLOW and KLOW?
Does this calculator recommend a GLOW dose?
Primary sources
Background references for this calculator. PepSync does not make clinical claims; these citations support the educational context only.