Peptide Glossary

New to peptides? Every technical word you'll see on this site is explained here in plain English. Tap any underlined word on the main site to see its definition instantly.

A
angiogenesis
The growth of new blood vessels. Helps injured tissue get more blood flow to heal faster.
B
BAC water
Bacteriostatic water — a sterile water with a tiny amount of benzyl alcohol to keep it germ-free for multiple uses.
bacteriostatic water
Sterile water with a small amount of benzyl alcohol added so it stays germ-free even after you open it.
C
cycle
How long you take a peptide before giving your body a break — like a course of treatment.
cytoprotection
Protecting cells from damage — helping your cells survive stress or injury.
concentration
How strong your solution is — how many mg of peptide are dissolved in each mL of liquid.
H
half-life
How long it takes for half the dose to wear off. A shorter half-life means you need to dose more often.
I
insulin syringe
A very thin, short syringe designed for shallow injections. The needle is tiny — most people feel only a small pinch.
L
lyophilized
Freeze-dried — the peptide powder has had all moisture removed so it stays stable until you mix it.
loading dose
A higher starting dose taken for the first few weeks to build up levels in your body faster.
M
mcg
Micrograms — a very tiny unit of weight. 1,000 mcg = 1 mg. Used for very small doses.
mg
Milligrams — a unit of weight. 1 mg = 1,000 mcg. Most peptide labels use mg.
mL
Milliliter — a unit of liquid volume. 1 mL is about 20 drops of water.
mg/mL
Milligrams per milliliter — the concentration of your solution. Tells you how much peptide is in each mL of liquid.
maintenance dose
A lower ongoing dose taken after the loading phase to keep levels steady.
micro-dose
A very small dose, often a fraction of the standard dose, used to test tolerance or for subtle effects.
P
peptide
A short chain of amino acids (the building blocks of protein) that acts as a messenger in your body.
PCT
Post-Cycle Therapy — a recovery protocol some people use after a cycle. Most peptides don't need it.
pentadecapeptide
A peptide made of exactly 15 amino acids. BPC-157 is a pentadecapeptide.
R
reconstitute
To dissolve the dry peptide powder in BAC water so it becomes a liquid you can inject.
reconstitution
The process of dissolving dry peptide powder in BAC water to make an injectable liquid.
S
subcutaneous
Just under the skin — a shallow injection into the layer of fat beneath the skin surface.
SC injection
Subcutaneous injection — a shallow shot into the fat layer just under the skin, like a diabetic insulin shot.
stack
Taking two or more peptides at the same time because they work well together.
T
titrate
Starting at a low dose and slowly increasing it over time so your body adjusts gently.
U
U-100
A standard insulin syringe marked from 0 to 100 units. 100 units = 1 mL. Sold at any pharmacy.
V
vial
A small glass bottle that holds the peptide powder until you mix it.

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