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Understanding Cost Per Mg: The Right Way to Compare Peptide Prices

Sticker price hides the real value. Here's how cost-per-mg lets you compare peptide listings apples-to-apples across vendors and vial sizes.

Why sticker price lies#

A $40 vial isn't automatically cheaper than a $60 vial. What matters is how much actual compound you get — measured in milligrams (mg). Two listings for the same peptide can differ several times over in real value once you account for vial size.

Cost per mg, explained#

Cost per mg = price ÷ total milligrams in the vial.

  • A 5 mg vial at $40 → $8.00 / mg
  • A 10 mg vial at $60 → $6.00 / mg

The "more expensive" $60 vial is actually the better deal. Cost-per-mg normalizes price across different vial sizes so you compare apples to apples.

How to use it#

  1. Find the peptide you want.
  2. Sort listings by lowest cost / mg.
  3. Check stock and vendor before deciding.

Every listing on PEPTIDES·INDEX shows cost-per-mg automatically, so you never have to do the math.

BPC-157

What about blends?#

For blends, total mg is the sum of all components in the vial — so cost-per-mg still works, it just reflects the combined compound.

Prices are aggregated for research-use comparison only and can change at any time.

Peptides mentioned

BPC-157View prices →GHK-CuView prices →
Educational reference for research-use context only. This is not medical advice, and nothing here is a recommendation to use any compound in humans. Consult a qualified healthcare professional before making any health decision.
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