Cost per mg.
Vial prices are not comparable to each other, because vials are not the same size. Normalise any price to cost per milligram and the comparison becomes real. Everything on this page is arithmetic on numbers you type. We publish no prices and name no sellers.
Optional: add an amount per administration and a weekly frequency to get cost per dose and run rate. Both are numbers you choose; nothing is defaulted or suggested.
Enter a price and a vial amount to see the normalised cost.
How it works.
Enter the price and what is actually in the vial
The price is whatever you paid or were quoted, in whatever currency you use. The amount is the labelled peptide content in mg or mcg, which is not the same as the vial's fluid volume. A 10 mg vial and a 10 mL vial are completely different things.
Read price per mg, and per 100 mcg
Price per mg is the number that makes two listings comparable. Price per 100 mcg is the same figure rescaled, because compounds that are handled in micrograms produce a per-mg number too small to hold in your head.
Optionally add an amount and a frequency
If you enter an amount per administration and how many times per week, you also get cost per administration, administrations per vial, and a weekly and monthly run rate. Those are both numbers you choose. Nothing here suggests, defaults to, or endorses any amount.
What a low price per mg does not tell you.
Unit pricing answers exactly one question: which listing gives you more milligrams for the money, if both listings contain what they claim. For research-use-only compounds that second condition is the expensive assumption. No regulator has verified the identity, purity, sterility or endotoxin load of a research vial, and independent testing has repeatedly found products that were underfilled, degraded, or a different peptide altogether.
So treat this number as a purchasing comparison, not a value judgement. A price that is far below everything else is information, but the information may be about what is in the vial rather than about the deal. Safety and quality covers what has actually been found when people tested the market.
FAQ.
Why compare on price per mg instead of price per vial?
Because vial sizes are not standardised. A 5 mg vial and a 10 mg vial of the same compound are different quantities of the same thing, so the sticker prices are not comparable. Dividing price by milligrams collapses both listings to one number you can actually put side by side. It is the same logic as unit pricing on a supermarket shelf.
Does this page tell me what a peptide should cost?
No, and it deliberately ships no example prices at all. Peptide pricing varies by compound, quantity, region, formulation and seller, and any figure we printed would be stale within months and would read as an endorsement of whoever matched it. This tool only does arithmetic on the number you type.
Why is the monthly figure not the weekly figure times four?
Because an average month is about 4.35 weeks, not 4. Multiplying by four undercounts the annual total by roughly four weeks of spend. The tool uses 365.25 divided by 12 divided by 7, which is the honest conversion.
Should cheaper mean better value?
Only if what is in the vial is what the label says, and price per mg cannot tell you that. For research-use-only compounds nobody has verified the contents, the sterility, or the endotoxin load, so a low price per mg may just be a low price per mg of something else. Cost normalisation is a purchasing comparison, not a quality signal.
Does it handle mcg-priced compounds?
Yes. Switch the vial amount to mcg and the arithmetic scales automatically, and the per-100-mcg output exists specifically so that compounds handled in micrograms give you a readable figure rather than a long string of decimal places.