Okay.
This is the chapter everyone skips to because this is where peptide math suddenly stops looking like chemistry and starts looking like common sense.
No unnecessary suffering.
No emotional damage.
No calculators thrown across the room.
First, Meet Your Syringe
Most peptide users are using an insulin syringe.
The numbers on the side usually go from:
0 → 100 units (or 50 units)
Think of it like a ruler.
That's all it is.
A tiny ruler for liquid.
When I say:
- 10 units
- 20 units
- 30 units
- 50 units
I'm talking about the markings on that ruler. Not the amount of peptide. Just the amount of liquid being pulled.
My Favorite Number Is 3
As you've already learned, I use:
3 mL BAC water
For most things because it's easy and my favorite number!
Example #1: A 10 mg Vial + 3 mL BAC
You have:
10 mg peptide
You add:
3 mL BAC water
Boom.
You now have 10 mg spread throughout 3 mL.
Cheat Sheet
10 units = 0.33 mg (330 mcg)
15 units = 0.50 mg (500 mcg)
20 units = 0.67 mg (670 mcg)
30 units = 1 mg
50 units = 1.67 mg
100 units = 3.33 mg
Example #2: A 20 mg Vial + 3 mL BAC
This is one I use all the time for things like BPC/TB.
You have:
20 mg peptide
You add:
3 mL BAC
Now everything becomes stronger because you're squeezing more peptide into the same amount of liquid.
Cheat Sheet
5 units = 0.33 mg
10 units = 0.67 mg
15 units = 1 mg
20 units = 1.33 mg
30 units = 2 mg
50 units = 3.33 mg
This is why people sometimes pull fewer units with stronger vials.
More peptide packed into the same liquid.
Example #3: A 50 mg Vial + 3 mL BAC
Now we're getting spicy.
Cheat Sheet
5 units = 0.83 mg
10 units = 1.67 mg
12 units = 2 mg
20 units = 3.33 mg
30 units = 5 mg
50 units = 8.33 mg
Notice how the same 10 units now delivers a completely different dose than the previous examples.
This is why asking:
"How many units should I take?"
without knowing the vial strength makes me roll my eyes.
Example #4: A 100 mg Vial + 3 mL BAC
Let's use GHK-Cu as an example.
Cheat Sheet
3 units = 1 mg
6 units = 2 mg
9 units = 3 mg
12 units = 4 mg
15 units = 5 mg
30 units = 10 mg
Look at us simple mathing away.
The Part That Confuses Everybody
Let's say your friend says:
"I take 10 units."
And you say:
"Cool. Of what?"
Because 10 units from a 10 mg vial and 10 units from a 100 mg vial are VERY different things.
The "Start Low, Don't Be a Hero" Rule
One thing I've learned:
You can always take more later. You can't "untake" something.
Whether it's a peptide, caffeine, tequila, or an impulsive Amazon purchase.
Starting lower gives you a chance to see how your body responds. Then you can adjust.
Dosing Summarized
Know how much peptide is in your vial. Know how much BAC water you added. Know what dose you want. Everything else is just math. And luckily, the math is way easier than the internet makes it sound.
Next up, we're going to walk through some of the most popular peptides one by one, what they're commonly used for, what I personally experienced, and whether I think they're actually worth your money!
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